XFlow 2015 tutorials users guide 含13个例子的全部教程

XFlow 2015 Tutorial Guide? Copyright 2015 Next Limit Dynamics SL1

XFlow 2015 (Build 96.01)

? Copyright 2015 Next Limit Dynamics SL

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2XFlow 2015 Tutorial Guide? Copyright 2015 Next Limit Dynamics SL

Table of Contents

Using this guide

6

Conventions ................................................................................................................................... 6

Tutorial 01 - Flow around a NACA0012 airfoil

9

Step 0: Execute XFlow ................................................................................................................................... 10Step 1: Create geometry ................................................................................................................................... 11Step 2: Problem setup ................................................................................................................................... 17Step 3: Run ................................................................................................................................... 22Step 4: Post-processing ................................................................................................................................... 25Step 5: Refine the resolution ................................................................................................................................... 34Step 6: Moving NACA - Enforced motion ................................................................................................................................... 42Step 7: Moving NACA - Rigid body dynamics ................................................................................................................................... 46

Tutorial 02 - Vehicle aerodynamics50

Step 1: Import geometry ................................................................................................................................... 51Step 2: Problem setup ................................................................................................................................... 54Step 3: Run ................................................................................................................................... 58Step 4: Post-processing ................................................................................................................................... 61

Tutorial 03 - Advanced postprocessing

74Advanced post-processing ................................................................................................................................... 75

Tutorial 04 - Dam break

85

Step 1: Problem setup ................................................................................................................................... 86Step 2: Post-processing ................................................................................................................................... 88

Tutorial 05 - Breaking waves92

Step 1: Problem setup ................................................................................................................................... 93Step 2: Post-processing ................................................................................................................................... 97Step 3: Gravitational potential ................................................................................................................................... 98Step 4: Porous volume ................................................................................................................................... 101

Tutorial 06 - Ball check valve103

Step 1: No damping case ................................................................................................................................... 104Step 2: Under-damping case ................................................................................................................................... 113

XFlow 2015 Tutorial Guide? Copyright 2015 Next Limit Dynamics SL3

Step 3: Critical-damping case ................................................................................................................................... 114Step 4: Over-damping case ................................................................................................................................... 115

Tutorial 07 - Wind turbine118

Step 1: Geometry healing ................................................................................................................................... 119Step 2: Enforced behaviour - Case setup ................................................................................................................................... 122Step 3: Enforced behaviour - Post-processing ................................................................................................................................... 127Step 4: Rigid body dynamics behaviour ................................................................................................................................... 130

Tutorial 08 - Heat transfer134

Step 1: Problem setup ................................................................................................................................... 135Step 2: Post-processing ................................................................................................................................... 139

Tutorial 09 - Radiation144

Step 1: Problem setup ................................................................................................................................... 145Step 2: Post-processing ................................................................................................................................... 147

Tutorial 10 - Cyclone flow150

Step 1: Problem setup ................................................................................................................................... 151Step 2: Post-processing ................................................................................................................................... 155Step 3: Stream tracers ................................................................................................................................... 158

Tutorial 11 - FMI standardco-simulation: OpenModelicaPendulum

167

Step 1: Problem setup - XFlow ................................................................................................................................... 168Step 2: Set FMI standard in XFlow ................................................................................................................................... 174Step 3: Problem setup - OpenModelica ................................................................................................................................... 177Step 4: Exectution of Co-simulation ................................................................................................................................... 182Step 5: Post-processing ................................................................................................................................... 185

Tutorial 12 - MSC Nastranco-simulation: Turek Hron

187

Step 1: Problem setup - SimXpert ................................................................................................................................... 188Step 2: Problem setup - XFlow ................................................................................................................................... 201Step 3: Execution of Co-simulation ................................................................................................................................... 207Step 4: Post processing ................................................................................................................................... 210

Tutorial 13 - Helmholtz resonator211

Step 1: Problem setup ................................................................................................................................... 212Step 2: Post-processing ................................................................................................................................... 215

4XFlow 2015 Tutorial Guide? Copyright 2015 Next Limit Dynamics SL

XFlow 2015 Tutorial Guide? Copyright 2015 Next Limit Dynamics SL5