Introduction to Computational Fluid Dynamics
For advanced undergraduate and first year graduate students in mechanical, aerospace and chemical engineering, this textbook emphasizes understanding CFD through physical principles and examples.
TABLE OF CONTENTS Introduction to Computational Fluid Dynamics
Appendix C: 2D Cartesian Code
C.1 Structure of the Code
The structure of the 2D Cartesian code is similar to that of the ID conduction code. The code is again divided into two parts: The problem-dependent user part containing files COM2D.FOR and USER2D.FOR and the problem independent library part that contains the LIB2D.FOR file. [1] The listings of each file are given at the end of this appendix. The list of variable names with their meanings is given in Table C.1.
| Variable | Meaning |
|---|---|
| AE, AW | Array containing east and west coefficients |
| AN, AS | Array containing north and south coefficients |
| AMW | Mass influx at the wall (kg/m 2 ?s) |
| AP | Array containing coefficient of ? P |
| AP1 | Array containing coefficient of |
| APU, APV | Array containing coefficient of u P and v P |
| AXISYMM | Logical ?=.TRUE. refers to axisymmetric case |
| CAPPA | Constant in log law of the wall |
| CC | Convergence criterion |
| CCTM | Stop condition for unsteady problem |
| CD1 | Constant in e ?? turbulence model |
| CD2 | Constant in e ?? turbulence model |
| CONMAS | Logical refers to imposition of mass balance at exit plane |
| D | Array for turbulent energy dissipation rate ? |
| DELT | Time step (s) |
| DENSIT | Reference density (kg/m 3) |
| DO | Array for ? at old time |
| DPI | Periodic pressure change in I direction |
| DP2 | Periodic pressure change in J direction |
| DXMI | Array containing increment X (I) ?X ( I ?1) |
| DXP | Array containing increment XC ( I |
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