Tutorial: Submarine Docking Simulation Using MDM Model Purpose The purpose of this tutorial is to provide guidelines for the creation, setup, and solution procedure to solve the flow around a small submarine in a given time frame using Moving Deforming Meshes (MDM). In this tutorial you will learn how to: • Import the geometry, create the required MDM domain and surface mesh using GAMBIT. • Model the small submarine movement using MDM model in FLUENT. • Set up, run, and postprocess the solution using FLUENT. • Save the animation using FLUENT. Prerequisites This tutorial assumes that you are familiar with the FLUENT and GAMBIT user interface. It also assumes that you have a good understanding of the basic setup and solution procedures. This tutorial does not cover the mechanics of using the MDM model, but the focuses on setting up problem for the submarine and solving it. If you have not used the MDM model before, Chapter 10: Modeling Flows in Moving and Deforming Zones in FLUENT 6.2 User’s Guide will provide you the necessary information. Problem Description This tutorial considers a simplified 2D model of a model scale (9 m) submarine advancing at constant speed. An ASDS approaches this submarine along a prescribed attitude and path. The tutorial case is setup to understand the flow field, forces, and moments acting on the large submarine and the ASDS, while they dock. c Fluent Inc. March 16, 2005 1
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Tutorial: Submarine Docking Simulation Using MDM Model
Purpose
The purpose of this tutorial is to provide guidelines for the creation, setup, and solutionprocedure to solve the flow around a small submarine in a given time frame using MovingDeforming Meshes (MDM).
In this tutorial you will learn how to:
• Import the geometry, create the required MDM domain and surface mesh usingGAMBIT.
• Model the small submarine movement using MDM model in FLUENT.
• Set up, run, and postprocess the solution using FLUENT.
• Save the animation using FLUENT.
Prerequisites
This tutorial assumes that you are familiar with the FLUENT and GAMBIT user interface. Italso assumes that you have a good understanding of the basic setup and solution procedures.This tutorial does not cover the mechanics of using the MDM model, but the focuses onsetting up problem for the submarine and solving it. If you have not used the MDM modelbefore, Chapter 10: Modeling Flows in Moving and Deforming Zones in FLUENT 6.2 User’sGuide will provide you the necessary information.
Problem Description
This tutorial considers a simplified 2D model of a model scale (9 m) submarine advancingat constant speed. An ASDS approaches this submarine along a prescribed attitude andpath. The tutorial case is setup to understand the flow field, forces, and moments actingon the large submarine and the ASDS, while they dock.
sub small WALL Edges of the small submarinesub big WALL Edges of the large submarinev inlet VELOCITY INLET Curved edge of the parabolic facep outlet PRESSURE OUTLET Straight edge of the parabolic face
Note: For information about length scale, click Mesh Scale Info.... This will openMesh Scale Info panel which displays values of Minimum Length Scale, Max-imum Length Scale, Maximum Cell Skewness, and Maximum Face Skewness.The maximum length specified for the deforming zone in the Dynamic Meshpanel is very small compared to the maximum length scale in the domain(which is outside the deforming zone).