· Web viewn Computational Solids and Fluid Dynamics n Angewandte CFD n Turbulente Strömungen n Gasdynamik n Biofluid Mechanics n Strömungsphysik und Modellgesetze n Aerodynamik

Institute of Aerodynamics and Fluid MechanicsNumerical modeling, simulation and experimental analysis of fluids and fluid flows

n The focus of the Institute of Aerodynamics and Fluid Mechanics in2014-15 was on advanced numerical models for flow interactions, flow physics of shock-interface interactions, helicopter aerodynamics and unsteady effects in automotive aerodynamics.

Prof. Dr.-Ing. Nikolaus A. Adams

A highlight was that Prof. Adams received an Advanced Grant from the European Research Council for the Project NANO- SHOCK – Manufacturing Shock Interac- tions for Innovative Nanoscale Processes with funding of €2.4 million. The institute contributed two technology projects to the

development of Bluecopter Demonstration technologies, enabling environmentally friendly short-range air transport.Dr. Stefan Hickel, formerly Senior Lecturer at the institute, was appointed as Chair of Aerodynamics at TU Delft.

Contact Cavitating Flows and Cavitation Erosionwww.aer.mw.tum.de [email protected] Phone +49.89.289.16138

Motivation and ObjectivesWe investigate liquid flows with partial evaporation due to flow-induced local pressure drops below vapor pressure, known as cavitation. Cavitating flows play an important role in injection systems of diesel and Otto engines, in components of spacecraft engines as well as in ship pro- pulsion systems. Managing the complexity of two-phase flows with phase transitionis challenging, and experimental inves- tigations often cannot go beyond model devices. In particular, violent collapsesof vapor bubbles and the resulting shock waves need to be predicted and their erosive mechanisms have to be clarified.

Approach to SolutionState of the art numerical procedures and physical models for the simulation of cavitating flows are developed. Fully compressible approaches for complexfluids, including liquid-vapor-gas mixtures and a time resolution of nanoseconds,are key factors for predictive simulations. Fundamental research is funded by the Deutsche Forschungsgemeinschaft and the European Union. Applied research incooperation with automotive suppliers, the European Space Agency and the Office of Naval Research enables dissemination of fundamental research into application.

Key Resultsn Cavitation erosion prediction

based on analysis of flow dynamics and impact load spectra

n MS Mihatsch, SJ Schmidt, NA Adams.Physics of Fluids (1994-present) 27 (10), 103302

n Large-eddy simulation of cavitatingnozzle flow and primary jet break-up

n Örley, T Trummler, S Hickel, MS Mihatsch, SJ Schmidt, NA Adams. Physics of Fluids (1994-present) 27 (8),086101

Cavitation structures in an ICE fuel injector.

2 Institute of Aerodynamics and Fluid Mechanics

Large Eddy Simulation of Complex Turbulent Flows

Motivation and ObjectivesScientific discovery through modeling and predictive simulation requires nume- rical models and solution methods that accurately represent and resolve relevant flow physics and efficiently exploit modern massively parallel supercomputers.

Approach to SolutionAdaptive flow simulation refers to highly automated flow simulations which require only a minimum of user interventions, while delivering reliable results. This includes methods for automatic meshadaptation as well as for the quantification of uncertainties that result from model approximations, initial data, or boundary conditions. Adaptive DNS/LES requires methods that couple numerical and physical models on multiple scales in a consistent way. For example, we have developed sophisticated wall turbulence models, which facilitate LES of engineer- ing aerodynamic applications.

Key Resultsn Tritschler, V., Olson, B., Lele, S.,

Hickel, S., Hu, X.Y., Adams, N.A. (2014a)J. Fluid Mech. 755, 429-462.

n Tritschler, V.K., Avdonin, A., Hickel, S., Hu, X.Y., Adams, N.A. (2014b)Phys. Fluids 26, 026101.

n V. Pasquariello, G. Hammerl, F. Örley, S. Hickel, C. Danowski, A. Popp, ...A cut-cell finite volume-finite element coupling approach for fluid-structure interaction in compressible flow, Journal of Computational Physics 307,670-695

n Hickel, S., Egerer, C.P., Larsson, J. (2014) Phys. Fluids 26:

106101.n Diegelmann, V., Tritschler, S.,

Hickel,N., Adams, N.A. On the pressure dependence of ignition and mixing in two-dimensional reactive shock-bubble interaction, Combustion and Flame163, 414-426, 2015n C. Egerer, S. Hickel, S.

Schmidt,Adams, N.A. LES of temporally evolving turbulent cavitating shear layers High Performance, Computing in Scienceand Engineering ’14, 367-378

Direct simulation of reacting shock-bubble interaction

Particle Modeling of Fluid Dynamics

Motivation and ObjectivesDespite their wide-spread use, typical par- ticle methods, such as smoothed particle hydrodynamics (SPH), for simulating fluid dynamics cannot deal with realistic flow parameters without numerical regulariz- ation that interferes with the underlying physical model. SPH and their mesosco- pic extension SDPD, are

very attractive numerical models for fluid flow of extreme physical complexity.

SDPD simulation of elastic turbulence in a polymer solution

Approach to SolutionWe have developed SPH/SDPD ap- proaches capable of modeling complex

4 Institute of Aerodynamics and Fluid Mechanics

microflows. In particular we have devised a new SPH paradigm which enables SPH to reach realistic flow parameters without artificial regularization.

Key Resultsn Determination of macroscopic

transport coefficients of a dissipative particle dynamics solvent. Phys. Rev. E, accepted for publication 2015. Dmitrii Azarnykh, Sergey Litvinov, Xin Bian,and Nikolaus A. Adams

n Towards consistence and convergence of conservative SPH approximations. S Litvinov, XY Hu, NA Adams. Journal of Computational Physics 301, 394-401,2015

n Mesoscopic simulation of the transient behavior of semi-diluted polymer solution in a microchannel following extensional flow. S. Litvinov, X. Hu,M. Ellero, N. Adams. Microfluidics and nanofluidics 16 (1-2), 257-264

High-order Numerical Models forComplex Fluid Dynamics and Interactions

Direct simulation of shock-liquid- drop interaction

Motivation and ObjectivesAlthough high-order schemes have been widely used in numerical simulation of flow phenomena they face great challen- ges for achieving both high resolvabilityof flow structures and high robustness for coping with discontinuities and interface interactions. The numerical modeling of multi-phase flows must have the capability to reproduce the evolution of fluidic inter- faces which may become very complex and produce small-size structures beyond the resolvability of the computational grid. Such under-resolved structures very often lead to numerical instability and failure of numerical simulation.

Approach to SolutionBased on our newly developed WENO methodology, we design numerical schemes with the ability to separate flow structure according to their characteristic length scales and to handle large scale and small scale structure in physicallyconsistent ways. The developed numerical schemes achieve very good resolvability without compromising robustness. We have developed a multi-scale methodto cope with under-resolved interface structures. The core approach is aso-called stimulus-response model which measures the smoothness of the interface and separates resolved and non-resolved scales in a simple and efficient way.

Key Resultsn A family of high-order targeted ENO

schemes for compressible-fluid simulations. L. Fu, X.Y. Hu, N.A. Adams. Journal of Computational Physics 305,333-359, 2015

n L.H. Han, X.Y. Hu, N.A. Adams, J.Comp. Phys. 262:131–152 (2014)

n L.H. Han, X.Y. Hu, N.A. Adams, J.Comp. Phys., 280:387–403 (2014)

Aircraft and Helicopter Aerodynamics

Motivation and ObjectivesPerformance enhancement and reduction of emissions are key objectices within the framework of the European ‘Flightpath2050’. For the current research projects, improving flow physics knowledge and modeling are related to unsteady aero- dynamics and aero-elasticity, turbulent flows and active flow control. Special emphasis is on the aerodynamic charac- teristics of highly maneuverable aircraft and large transport aircraft as well as on unconventional and UAV configurations. Specific research activities in the field of aircraft and helicopter aerodynamics deal with means of drag reduction by shape optimization, novel air intake solutions, flow control using active devices, pulsed blowing and plasma actuators and uncon- ventional lift generating systems including the fluid-structure interaction of flexible adaptive wings.

Approach to SolutionThe investigations are performed includ- ing both wind tunnel experiments and

SAGITTA diamond wing

numerical simulations. Commercial as well as in-house codes are used, while code development is mainly conducted in the context of aeroelasticity and reduced order models.

Key Resultsn A. Kölzsch and C. Breitsamter.

Journal of Aircraft, Vol. 51, No. 5, 2014, pp.1380-1390.

n J.-U. Klar and C. Breitsamter. Journal of Aircraft, Vol. 51, No. 5, 2014, pp.1511-1521.

n B. Beguin and C. Breitsamter. Aero- space Science and Technology, Vol. 37, No.1, 2014, pp. 138 150.

n Kato, Kentaro, Christian Breitsamter,

and Shinnosuke Obi. ‘Flow separation control over a Gö 387 airfoil by nano- second pulse-periodic discharge.’ Experiments in Fluids 55.8 (2014): 1-19.

n Förster, Mark, and Christian Breitsamter.

‘Aeroelastic Prediction of Discrete Gust Loads Using Nonlinear and Time-Lin- earized CFD-Methods.’ Journal of Aeroelasticity and Structural Dynamics3.3 (2015).

Helicopter flow control strategies

Laminar-turbulent Transition with Chemical(Non-)Equilibrium in Hypersonic Boundary-layer FlowsMotivationIn hypersonic flows, the heat transfer dif- fers up to an order of magnitude compar- ing laminar and turbulent

boun

6 Institute of Aerodynamics and Fluid Mechanics

dary layers. The prediction of the transition location on blunt re-entry configurations aims at the understanding of the underlying instability mechanisms. The influence of the chemi- Flow around a re-entry capsule

and wind tunnel conditions

cal state of the boundary layer (equilibrium or non-equilibrium) in these high-enthalpy flows is the main focus.

Approach to SolutionDirect numerical simulations (DNS) are conducted on national HPC facilities such as SuperMUC and HLRS. Results show that early stages of hypersonic transition are not substantially affected by chemical reactions. Simulations are currently under way taking into account the surface

roughness and the noise which can lead to transient growth of disturbances to non-linear amplitudes where they can be enhanced through the presence of the chemical reactions.

Key Resultsn C. Stemmer, J. Fehny, 44th AIAA Fluid

Dynamics Conference, Atlanta, GA,2014

n S. Gosh, R. Friedrich, C. Stemmer,Int. J. Heat Fluid Flow 48:24-34, 2014

Automotive Aerodynamics

Way to SolutionOne approach to unsteady aerodynamics is to analyze the dynamic behavior of the flow field using dynamic mode decom- position (DMD). DMD is found to extract useful information from the flow, when itis applied to three dimensional velocity vector fields. It is a method to extract coherent structures by decomposingthe flow into dynamic modes. Analyzing the turbulent structures and their origins allows shape optimization leading to dragreduction of the component or full car.

DrivAer 1:2.5 model in windtunnel MotivationAutomotive aerodynamics deals with the aerodynamic optimization of vehicles driven by combustion engines or electrical motors. Key objectives are drag reduction and unsteady aerodynamics with its influence on the driving stability and the aerodynamic coefficients. With respectto high drag reduction potential, the wheel/wheelhouse region is dedicated to systematic optimization.

Key Resultsn M. Peichl, S. Mack, T. Indinger, F.

Decker: ASME 2014 Fluids Engineering Summer Meeting, August 3-7, 2014, Chicago, USA, FEDSM2014-21255

n B. Schnepf, G. Tesch, T. Indinger: JSAE

Annual Spring Congress 2014, Paper20145029, May 21-23, Yokohama, Japan, 2014

n Huber, Simon, et al. ‘Experimental and

Numerical Study of Heat Transfer at the Underbody of a Production Car.’ SAE International Journal of Commer- cial Vehicles 7.2014-01-0582 (2014):

8 Institute of Aerodynamics and Fluid Mechanics

89-101

DFG Sonderforschungsbereich TRR 40:Technological Foundations for the Design of Thermally and Mechanically Highly Loaded Components of Future Space Transportation Systems

The institute has the speaker role within the DFG-SFB TRR40. Next-generation space transportation systems will be based on rocket propulsion systems which deliver the best compromise be- tween development and production cost and performance. The TRR40 focuses on liquid rocket propulsion systems and their integration into the space transportation system.Critical, thermally and mechanically highly loaded components of such space trans- portation systems are the combustion chamber, the nozzle, the aft body and the cooling of the structure. These compo- nents offer the highest potential for the efficiency increase of the entire system. However, all components are in close and direct interaction with each other. Opti- mization or the fundamentaly new design of a single component directly affects all other components.The 25 projects from TUM, RWTH Aachen, TU Braunschweig and the U Stuttgart as well as partners from DLR and AIRBUSD&S investigate in interdisciplinary

experimental and numerical teams. The developed concepts will be tested onsub-scale combustion chambers and will be developed to a stage of applicability. In addition, principal experiments are going to be conducted to demonstrate newtechnologies developed in the TRR40. The scientific focus of all five research areas within the TRR 40 is the analysis and the modeling of coupled systems. Based on reference experiments detailed numerical models are developed which serve as the basis for efficient and reliable predictive simulation tools for design.

Shock-turbulent boundary layer interaction

Research Focin Numerical fluid and flow

modeling and simulationn Complex fluidsn Turbulent and transitional flowsn Aerodynamics of aircraft and

auto- mobilesn Environmental aerodynamics

Competencesn Multi-physics code and particle

based model developmentn Adaptive multi resolution parallel

simulation codesn DrivAer car geometryn Experimental aerodynamics

10 Institute of Aerodynamics and Fluid Mechanics

Infrastructuren

3 low-speed wind tunnels + moving belt systemn 2 shock tubes

Coursesn Fluidmechanik I and IIn Aerodynamik I und IIn Grenzschichttheorien Instationäre Aerodynamik I und IIn Aeroakustikn Aerodynamik und Bauwerken Numerische Berechnung turbulenter

Strömung

n Aerodynamik stumpfer Körpern Aerodynamik von

Höchstleistungs- fahrzeugenn Strömungsmechanik in der Verfahren-

stechnikn Computational Solids and Fluid

Dynamics

n Angewandte CFDn Turbulente Strömungenn Gasdynamikn Biofluid Mechanicsn Strömungsphysik und Modellgesetzen Aerodynamik bodengebundener

Fahrzeuge

n Aerodynamik der Raumfahrzeugen An Introduction to Microfluidic

Simulations

n Grundlage der experimentiellenStrömungsmechanik

ManagementProf. Dr.-Ing. Nikolaus A. Adams, DirectorDr.-Ing. Albert Pernpeintnerapl. Prof. Dr.-Ing. habil. ChristianBreitsamterPD Dr.-Ing. habil. Christian StemmerDr.-Ing. Xiangyu HuPD Dr.-Ing. habil. Thomas IndingerProf. i.R. Dr.-Ing. habil. Rainer Friedrich, EmeritiusProf. em. Dr.-Ing. Boris Laschka, Emeritius apl. Prof. i.R. Dr.-Ing. Hans Wengle, Emeritius

Visiting LecturerDr.-Ing. Rainer Demuth (BMW Group)

Administrative StaffAngela GrygierDipl.-Betriebsw. (FH) Sandra Greil

Li Su, M.Sc.

12 Institute of Aerodynamics and Fluid Mechanics

Research StaffDr.-Ing. Stefan Adami Dmitrii Azarnykh, M.Sc. Bruno Beban, M.Sc. Vladimir Bogdanov, M.Sc. Dipl.-Ing. Bernd Budich Dipl.-Ing. Andrei Buzica Michael Cerny, M.Sc.Dipl.-Ing. Christopher Collin Antonio Di Giovanni, M.Sc. Felix Diegelmann, M.Sc. Dipl.-Ing. Christian Egerer Lin Fu, M.Sc.Dr.-Ing. Daniel GaudlitzDr.-Ing. Marcus GiglmaierPolina Gorkh, M.Sc.Dipl.-Ing. Moritz GrawunderDipl.-Ing. Lukas HaagLuhui Han, M.Sc.Dr.-Ing. Stefan HickelDipl.-Ing. Andreas HövelmannZhe Ji, M.Sc.Jakob Kaiser, M.Sc. Dipl.-Ing.Thomas Kaller Marco Kiewat, M.Sc. Dipl.-Ing. Florian Knoth Aleksandr Lunkov, M.Sc. Xiuxiu Lv, M.Sc.Dipl.-Ing. Jan Matheis Daiki Matsumoto, M.Sc. Lu Miao, M.Sc.Dipl.-Ing. Michael MihatschPatrick Nathen, M.Sc.Dipl.-Phys. Christoph NiedermeierDaria Ogloblina, M.Sc. Dipl.-Ing. Felix Örley Shucheng Pan, M.Sc.Dipl.-Ing. Vito Pasquariello Dr.-Ing. Albert Pernpeintner Dipl.-Ing. Julie Piquee Patrick Pölzlbauer, M.Sc.Dipl.-Ing. Jan-Frederik QuaatzVladyslav Rozov, M.Sc.Dipl.-Tech.Math. Steffen SchmidtDipl.-Ing. Felix SchrannerDipl.-Ing. Victor SteinDipl.-Ing. Marco Stuhlpfarrer Theresa Trummler, M.Sc. Konstantin Vachnadze, M.Sc. Dipl.-Ing. Maximilian Winter

Yongxinag Wu, M.Sc. Dipl.-Ing. Jae Hun You Chi Zhang, M.Sc.Dipl.-Ing. Christian Zwerger

Publications 2015n Budich, B., Schmidt, S.J., Adams, N.A. :

Numerical simulation of cavitating ship propeller flow and assessment of erosion aggressiveness; MARINE2015 – Computational Methods in Marine Engineer- ing VI; pp. 709-721

n Örley, F., Trummler, T., Hickel, S., Mihatsch, M.S.,

Schmidt, S.J., Adams, N.A.: Large-eddy simulation of cavitating nozzle flow and primary jet break-up; Physics of Fluids; Volume 27, Issue 8, 2015, Article number 086101; DOI: 10.1063/1.4928701

n Litvinov, S., Hu, X.Y., Adams, N.A.: Towardsconsistence and convergence of conservative SPH approximations; Journal of Computational Physics; Volume 301, November 15, 2015, Article number6091, pp. 394-401; DOI: 10.1016/j.jcp.2015.08.041

n Hu, X.Y., Wang, B., Adams, N.A.: An efficientlow-dissipation hybrid weighted essentially non-os- cillatory scheme; Journal of Computational Physics; Volume 301, November 15, 2015, Article number6093, pp. 415-424; DOI: 10.1016/j.jcp.2015.08.043

n Egerer, C., Hickel, S., Schmidt, S., Adams, N.A.: LES of temporally evolving turbulent cavitating shear layers (Book Chapter); High Performance Computing in Science and Engineering ‚14: Transactions of the High Performance Computing Center, Stuttgart (HLRS) 2014; 1 January 2015, pp.367-378; DOI: 10.1007/978-3-319-10810-0_25; Publisher: Springer International Publishing; ISBN:978-331910810-0;978-331910809-4

n Mihatsch, M.S., Schmidt, S.J., Adams, N.A.: Cavitation erosion prediction based on analysis of flow dynamics and impact load spectra; Physics of Fluids; Volume 27, Issue 10, 2015, Article number103302; DOI: 10.1063/1.4932175

n Schranner, F.S., Domaradzki, J.A., Hickel, S., Adams, N.A.: Assessing the numerical dissipation rate and viscosity in numerical simulations of fluid flows; Computers and Fluids; Volume 114, July02, 2015, pp. 84-97; DOI: 10.1016/j.comp- fluid.2015.02.011

n Han, L.H., Hu, X.Y., Adams, N.A.: Scale separation

for multi-scale modeling of free-surface and two- phase flows with the conservative sharp interface method; Journal of Computational Physics; Volume280, January 01, 2015, pp. 387-403; DOI: 10.1016/j. jcp.2014.10.001

n Luo, J., Hu, X.Y., Adams, N.A.: A conservative sharp

interface method for incompressible multiphase flows; Journal of Computational

Physics;Volume 284, March 01, 2015, pp. 547-565; ISSN:00219991; DOI: 10.1016/j.jcp.2014.12.044

n Örley, F., Pasquariello, V., Hickel, S., Adams, N.A.: Cut-element based immersed boundary methodfor moving geometries in compressible liquid flows with cavitation; Journal of Computational Physics; Volume 283, February 05, 2015, pp. 1-22; DOI:10.1016/j.jcp.2014.11.028

n Kato, K., Breitsamter, C.: Flow control on gö 387 airfoil by using nanosecond pulse plasma actuator: Fluid Mechanics and its Applications; Volume 107,2015, pp. 65-70

14 Institute of Aerodynamics and Fluid Mechanics

Technical Staff Martin Banzer Franz FärberHans-Gerhard FrimbergerWolfgang Lützenburg (Workshop Manag

er) Detlef MänzHans-Jürgen Zirngibl

n Ghosh, S., Friedrich, R.: Effects of radiative heat transfer on the turbulence structure in inert and reacting mixing layers. Physics of Fluids, 27:055107; doi: 10.1063/1.4920990.

n Matheis, J., Hickel, S.: On the transition between regular and irregular shock patterns of shock-wave/ boundary-layer interactions; Journal of Fluid Mechanics; Volume 776, 6 July 2015, Article num- ber 319, pp. 200-234; DOI: 10.1017/jfm.2015.319

n Muraschko, J., Fruman, M.D., Achatz, U., Hickel, S.,Toledo, Y.: On the application of Wentzel-Kramer- Brillouin theory for the simulation of the weakly nonlinear dynamics of gravity waves; Quarterly Journal of the Royal Meteorological Society; Volume141, Issue 688, 1 April 2015, pp. 676-697; DOI:10.1002/qj.2381

n Béguin, B., Breitsamter, C.: Effects of membranepre-stress on the aerodynamic characteristics of an elasto-flexible morphing wing; Aerospace Science and Technology; Volume 37, August 2014, pp.138-150

n Bian, X., Ellero, M.: A splitting integration scheme for the SPH simulation of concentrated particle suspensions; Computer Physics Communications; Volume 185, Issue 1, January 2014, pp. 53-62

n Bian, X., Ellero, M.: integration scheme for the SPHsimulation of concentrated particle suspensions; Computer Physics Communications; Volume 185, Issue 1, January 2014, pp. 53-62

n Bian, X., Litvinov, S., Ellero, M., Wagner, N.J.;Hydrodynamic shear thickening of particulate sus- pension under confinement; Journal of Non-New- tonian Fluid Mechanics; Volume 213, November 01,2014, pp. 39-49

n Borchert, S., Achatz, U., Remmler, S., Hickel, S., Harlander, U., Vincze, M., Alexandrov, K.D., Rieper, F., Heppelmann, T., Dolaptchiev, S.I.: Finite-volume models with implicit subgrid-scale parameteriza- tion for the differentially heated rotating annulus. Meteorologische Zeitschrift (accepted).

n Breitsamter, C., Grawunder, M., Reß, R.: Document‘Aerodynamic design optimisation for a helicopter configuration including a rotating rotor head’;29th Congress of the International Council of theAeronautical Sciences, ICAS 2014

n Castiglioni, G., Domaradzki, J.A., Pasquariello, V., Hickel, S., Grilli, M.: Numerical simulations of separated flows at moderate Reynolds numbers appropriate for turbine blades and unmanned aero vehicles; International Journal of Heat and Fluid Flow

n Castiglioni, G., Domaradzki, J.A., Pasquariello,V., Hickel, S., Grilli, M.: Numerical simulations of separated flows at moderate Reynolds numbers appropriate for turbine blades and unmanned aero vehicles; International Journal of Heat and Fluid Flow

n Chen, Z.L., Hickel, S., Devesa, A., Berland, J., Adams, N.A.: Wall modeling for implicit large-eddy simulation and immersed-interface methods; Theoretical and Computational Fluid Dynamics; Volume 28, Issue 1, February 2014, pp. 1-21

n Egerer, C.P., Hickel, S., Schmidt, S.J. and Adams,

N.A.: Large-eddy simulation of turbulent cavitating flow in a micro channel. Physics of Fluids 26,085102 (2014). DOI: 10.1063/1.4891325

n Fruman, M.D., Remmler, S., Achatz, U., Hickel, S.: On the construction of a direct numerical simulation of a breaking inertia-gravity wave in the upper-mes- osphere. Journal of Geophysical Research. doi:10.1002/2014JD022046

n Ghosh, S., Friedrich, R., Stemmer, Chr.: Contrasting turbulence-radiation interaction in supersonic channel and pipe flow. Int. J. Heat Fluid Flow, 48:24-34.

n Ghosh, S., Friedrich, R.: Effects of distributed pres- sure gradients on the pressure-strain correlationsin a supersonic nozzle and diffuser; Journal of Fluid Mechanics; Volume 742, March 2014, pp. 466-494; DOI: 10.1017/jfm.2014.4

n Giglmaier, M., Quaatz, J.F., Gawehn, T., Gülhan,

A., Adams, N.A.: Numerical and experimental investigations of pseudo-shock systems in a planar nozzle: Impact of bypass mass flow due to narrow gaps; Shock Waves; Volume 24, Issue 2, March2014, pp. 139-156

n Grawunder, M., Reß, R., Stein, V., Breitsamter, C., Adams, N.A.: Flow simulation of a five: Bladed rotor head; Notes on Numerical Fluid Mechanics and Multidisciplinary Design; Volume 124, 2014, pp. 235-243

n Han, L.H., Hu, X.Y., Adams, N.A.: Adaptive multi-

resolution method for compressible multi-phase flows with sharp interface model and pyramid data structure, Journal of Computational Physics, Volume 262, 1 April 2014, pp. 131-152

n Hickel, S., Egerer, C.P., Larsson, J.: Subgrid-scale

modeling for implicit Large Eddy Simulation of compressible flows and shock turbulence interaction. Physics of Fluids 26: 106101. doi:10.1063/1.4898641

n Hövelmann, A., Breitsamter, C.: Experimental investigations on vortex flow phenomena of a diamond wing configuration; 29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014

n Huber, S., Indinger, T., Adams, N., Schuetz, T.:Experimental and Numerical Study of Heat Transfer at the Underbody of a Production Car; SAE Inter- national Journal of Commercial Vehicles; Volume 7, Issue 1, May 2014, pp. 89-101

n Kato, K., Breitsamter, C.a, Obi, S.: Flow separation

control over a Gö 387 airfoil by nanosecond pulse-periodic discharge; Experiments in Fluids; Volume 55, Issue 8,

n Klar, J.-U., Breitsamter, C.: Unsteady aerodynamic loads on a high-agility aircraft due to wake vortex encounter; Journal of Aircraft; Volume 51, Issue 5, 1September 2014, pp. 1511-1521

n Kölzsch, A., Breitsamter, C.: Vortex-flow manipula- tion on a generic delta-wing configuration; Journal of Aircraft; Volume 51, Issue 5, 1 September 2014, pp. 1380-1390

n Litvinov, S., Hu, X., Ellero, M., Adams, N.;Mesoscopic simulation of the transient behaviorof semi-diluted polymer solution in a microchannel following extensional flow; Microfluidics and Nanofluidics; 16 (1-2), pp. 257-264, 2014n Muraschko, J., Fruman, M.D., Achatz, U.,

Hickel,S., Toledo, Y.: On the application of WKB theory for the simulation of the weakly nonlinear dynamicsof gravity waves. Quarterly Journal of the RoyalMeteorological Society. doi: 10.1002/qj.2381

n Pasquariello, V., Grilli, M., Hickel, S., Adams, N.A.: Large-eddy simulation of passive shock-wave/ boundary-layer interaction control; International Journal of Heat and Fluid Flow; DOI: 10.1016/j. ijheatfluidflow.2014.04.005; 2014

n Quaatz, J.F., Giglmaier, M., Hickel, S., Adams,N.A.: Large-eddy simulation of a pseudo-shock system in a Laval nozzle. International Journalof Heat and Fluid Flow. doi: 10.1016/j.ijheatfluid- flow.2014.05.006n Remmler, S., Hickel, S.: Spectral eddy

viscosity ofstratified turbulence. Journal of Fluid Mechanics755, R6. doi: 10.1017/jfm.2014.423

n Schmidt, S.J., Mihatsch, M.S., Thalhamer, M., Adams, N.A.: Assessment of erosion sensitive areas via compressible simulation of unsteady cavitating flows; Fluid Mechanics and its Applications; Volume106, 2014, pp. 329-344; DOI: 10.1007/978-94-017-8539-6_14

n Tritschler, V., Olson, B., Lele, S., Hickel, S., Hu, X.Y., Adams, N.A.: On the Richtmyer-Meshkov instability evolving from a deterministic multimode planar interface. Journal of Fluid Mechanics 755, 429-462. doi: 10.1017/jfm.2014.436

n Tritschler, V.K., Avdonin, A., Hickel, S., Hu, X.Y.,

Adams, N.A.: Quantification of initial-data uncer- tainty on a shock-accelerated gas cylinder. Physics of Fluids 26, 026101. doi: 10.1063/1.4865756

n Tritschler, V.K., Zubel, M., Hickel, S., Adams,N.A.: Evolution of length scales and statistics of Richtmyer-Meshkov instability from direct numerical simulations. Physical Review E (in press)n Vincze, M., Borchert, S., Achatz, U., von

Larcher,T., Baumann, M., Hertel, C., Remmler, S., Beck,T., Alexandrov, K.D., Egbers, C., Fröhlich, J., Heu- veline, V., Hickel, S., Harlander, U.: Benchmarking in a rotating annulus: a comparative experimental and numerical study of baroclinic wave dynamics. Meteorologische Zeitschrift.