CFX! Step 1: Pre-processing Define the boundary conditions Needed on all external surfaces of geometry OUTLET (0.0Pa) WALL (adiabatic INLET1 (0.5m/s@185K) INLET2 S0m/s@31K) CFX5.5V5.5.1H 2001AEA Technology
CFX 5.5 V 5.5.1H © 2001AEA Technology 1-6 Step I: Pre-processing Define the boundary conditions - Needed on all external surfaces of geometry
CFX! Step 1: Pre-processing Grid generation Process of generating finite volumes or cells Tetrahedral/Pyramidal/Prismatic/Hexahedral cells created Surface mesh and volume mesh make up the grid 1-7 CFX5.5V5.5.1H 2001AEA Technology
CFX 5.5 V 5.5.1H © 2001AEA Technology 1-7 Step I: Pre-processing Grid Generation - Process of generating finite volumes or cells - Tetrahedral/Pyramidal/Prismatic/Hexahedral cells created - Surface mesh and volume mesh make up the grid
CFX群 Step ll: Solution Procedure Solve the governing equations Set the flow solver options Iteratively solve the Mass/Momentum -RMS Residuals governing equations as a batch process Normalised Log residual 0.0 Obtain convergence U-Mom 1.0 V-Mom 2.0 W-Mom 4.0 5.0 6,0 Iteration Number CFX5.5V5.5.1H 2001AEA Technology
CFX 5.5 V 5.5.1H © 2001AEA Technology 1-8 Step II: Solution Procedure Solve the governing equations - Set the flow solver options - Iteratively solve the governing equations as a batch process - Obtain convergence
CFX! Step Il Post-processing Examine results Either in numerical or graphical format X 1-9 CFX5.5V5.5.1H 2001AEA Technology
CFX 5.5 V 5.5.1H © 2001AEA Technology 1-9 Step III: Post-processing Examine results - Either in numerical or graphical format
CFX! Import Fe eatures of cFX-5 Integrated geometry and grid generation CAD import capability CATIA, Unigraphics, Pro/Engineer, Euclid3, CADDS5 Parasolid. ACIS IGES Patran Automatic meshing Element based finite volume method Robust, accurate coupled algebraic multigrid solver Scalable performance in parallel CFX Expression Language(CEL) CFX Command Language(CCl) Interface to other software 1-10 CFX5.5V5.5.1H 2001AEA Technology
CFX 5.5 V 5.5.1H © 2001AEA Technology 1-10 Import Features of CFX-5 Integrated geometry and grid generation CAD import capability - CATIA, Unigraphics, Pro/Engineer, Euclid3, CADDS5, - Parasolid, ACIS, IGES, Patran Automatic meshing Element based finite volume method Robust, accurate coupled algebraic multigrid solver Scalable performance in parallel CFX Expression Language (CEL) CFX Command Language (CCL) Interface to other software