Mohammad - Thermohani/kurser/OS_CFD_2010/assignment1/moha… · Mohammad Irannezhad •Velocity vectors interpolated from cavity case for time 0.5 is shown in the back •Velocity

Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 1

Cavity Case

Mohammad Irannezhad

• Stream traces shown with filters/StreamTracer

• Velocity vectors calculated according to the tutorial, colored by solid color

Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 2

CavityFine Case

Mohammad Irannezhad

• Vorticity calculated from filters/ComputeDerivatives, then filters/CellDatatoPointData

Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 3

CavityGrading Case

Mohammad Irannezhad

• Mesh qualty based on the area of the cells is first calculated with filters/MeshQuality,

• Then the point values are calculated from filters/CellDatatoPointData

• Surfaces with Edges is chosen in Display/style to show the actual cell faces

Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 4

CavityClipped Case

Mohammad Irannezhad

• Velocity vectors interpolated from cavity case for time 0.5 is shown in the back

• Velocity vectors for the real solution at the same time is shown in front

• This is to show how two plots which are at the same location can be sperated by

moving one of them from display/transfprmation

Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 5

CavityHighRe Case

Mohammad Irannezhad

• Filled contours of ǫ

Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 6

plateHole Case

Mohammad Irannezhad

• Comparison of simulated σxx with σxxAnalytical using filter/PlotOverLine

• Components of simulated σ are calculated with foamCalc

• σxxAnalytical is calculated from analytical solution using filter/calculator

Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 7

damBreak Case

Mohammad Irannezhad

• Time-averaged α calculated with filters/TemporalStatistics

Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 8

Cylinder Case

Mohammad Irannezhad

• Velocity Magnitude contours, the domain is mirrored to give the full domain

Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 9

PitzDaily Case

Mohammad Irannezhad

• Values of turbulent length scale

Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 10

Forward Facing Step Case

Mohammad Irannezhad

• Values of Mach number

Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 11

Decompression Tank Case

Mohammad Irannezhad

Figure 1: (1) Figure 2: (2)

Figure 3: (3) Figure 4: (4)

• Evolution of pressure waves at the outlet of the tank and the nozzle shown as

concentric spherical slices

Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 12

Decompression Tank Fine Case

Mohammad Irannezhad

• Velocity vectors

Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 13

Hartmann Case

Mohammad Irannezhad

• Analytical axial velocity compared to CFD calculations for B = 20