Page 329 - Introduction to Computational Fluid Dynamics
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                            Table C.1 (continued )                  APPENDIX C. 2D CARTESIAN CODE
                            Variable        Meaning
                            JPREF           J index of reference point of pressure
                            JT              Parameter containing array size in J direction
                            MFREQ           NSOUT file written after every MFREQ iteration
                            MXGR            Parameter containing bigger of IT and JT
                            MXIT            Maximum number of allowable iterations
                            MXSTEP          Maximum number of allowable time steps
                            NITER           Iteration count
                            NPERIOD         = 1 for periodic boundary condition, = 0 otherwise
                            NSWEEP          Array containing maximum sweeps per iteration
                            NTAG            Array for identifying interior nodes
                            NTAGE           Array for identifying east near-boundary nodes
                            NTAGN           Array for identifying north near-boundary nodes
                            NTAGS           Array for identifying south near-boundary nodes
                            NTAGW           Array for identifying west near-boundary nodes
                            NTIME           Current time step number
                            NVAR            Maximum number of variables solved
                            O               Array for mass fraction ω
                                                               2
                            P               Array for pressure (N/m )
                            PI              Parameter π
                            PO              Array for pressure at old time
                            POWER           Logical – refers to power-law scheme
                            PP              Array for pressure correction
                            PR              Array for fluid Prandtl number
                            PRT             Array for turbulent Prandtl number
                            PSM             Array for smoothing pressure correction
                                                                      2
                            QW              Array for wall-heat in flux (W/m )
                            R               Array for storing radius at the node
                            RC              Array for storing radius at the south cell face
                                                               3
                            RHO             Array for density (kg/m )
                            RNORM           Array for storing residual normalising factors
                            RP              Array relaxation parameter α
                            RSDU            Array for storing maximum residual
                            SMALL           Parameter having a small value 10 −30
                            SLVE            Logical array for specifying variable to be solved
                            SP              Array containing Sp
                            SPH             Array for specific heat (J/kg-K)
                            STEADY          Logical – refers to steady-state calculation
                            STIME           Time at the start of a transient
                            TTIME           Total time after NTIME steps
                            SU              Array containing Su
                                                                     ◦
                            T               Array containing temperature ( CorK)
                                                                                2
                            TAUW            Array containing shear stress at the wall (N/m )
                            TO              Array containing temperature at old time
                            TURBUL          Logical – refers to turbulent flow
                            U               Array containing u 1 velocity
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