List of COMMON variables which may be used in PLANT expressions.

AEAST.....name used to denote an array containing the 'free' east-face area after blockages are deducted.

AHIGH.....name used to denote an array containing the 'free' high-face area after blockages are deducted.

ANORTH....name used to denote an array containing the 'free' north-face area after blockages are deducted.

AZDZ....determines the variation of DZ with Z distance. It must be set to GRND as a part of block for a setting the formulae for direct setting DZ.

AZXU....determines the variation of XULAST with Z distance. It must be set to GRND as a part of block for a setting the formulae to calculate the XRAT as the factor which will multiply XULAST.

AZYV....determines the variation of YVLAST with Z distance. It must be set to GRND as a part of block for a setting the formulae to calculate the YRAT as the factor which will multiply YVLAST.

CINT(PHI) .... is the ratio of the bulk-to-interface transfer coefficient, for the variable indicated.

It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.

COI1(PHI)....name used to denote the inter-phase transfer coefficient from phase 1 to the interface in response to the command, CINT(PHI)=GRND .

COI2(PHI)....name used to denote the inter-phase transfer coefficient from phase 2 to the interface in response to the command, CINT(PHI)=GRND .

CP1 .... is the heat capacity at the constant pressure of the phase-1.

It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.

CP2 .... is the heat capacity at the constant pressure of the phase-2.

It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.

C1, C3, C5, C7, C9, C11, C13, C15, C17, C19, C21, C23, C25, C27, C29, C31, C33, C35....standard names used to denote first-phase concentration full-field variables.

C2, C4, C6, C8, C10, C12, C14, C16, C18, C20, C22, C24, C26, C28, C30, C32, C34....standard names used to denote second-phase concentration full-field variables.

D1DP....name used to denote the values for the derivative of the natural log of first-phase density with respect to pressure in response to the command, DRH1DP=GRND .

D2DP....name used to denote the values for the derivative of the natural log of second-phase density with respect to pressure in response to the command, DRH2DP=GRND .

DEN1....name used to denote the values for the densities of the first phase in response of command, RHO1=GRND

DEN2....name used to denote the values for the densities of the second phase in response of command, RHO2=GRND

DRH1DP .... is the compressibility of the phase-1.

It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.

DRH2DP .... is the compressibility of the phase-2.

It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.

DT....is the name used to denote the values for the current time-step sizein response of command, TLAST=GRND

DTFALS(PHI)....name used to denote value of false-time-step of under-relaxation for the variable indicated, and which is used to set the specific expressions.

DXG2D....name used to denote the values of the distances in the IX-direction between centres of continuity cells.

DXU2D....name used to denote the values of the distances in the IX-direction between walls of continuity cells, where are stored the u velocity resolutes.

DYG2D....name used to denote values of the distances in the IY-direction between centres of continuity cells.

DYV2D....name used to denote the values of the distances in the IY-direction between walls of continuity cells, where are stored the v velocity resolutes.

DZ....name used to denote the the current width of the slab, and the forward-step size in parabolic calculations in response of the command, AZDZ=GRND.

DZG....is the distance between the cell centres of the current-slab cell and the high slab-cell.

DZGL....is the DZG of the low-slab.

DZGNZ....name used to denote values of the distances in the IZ-direction between centres of continuity cells.

DZL....is the z-thickness of the previous slab.

DZRAT....is set in EARTH to DZ / DZL.

DZWNZ....name used to denote values of the distances in the IZ-direction between cell faces.

EAST(PHI)....name used to denote the value of PHI on the east side of the cell in question.

EL1 .... is the mixing length scale of the first-phase fluid.

It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.

EL2 .... is the mixing length scale of the second-phase fluid.

It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.

FII1(PHI)....name used to denote the values of the current phase-1 variable at the phase interface in response to the command, PHINT(PHI)=GRND.

FII2(PHI)....name used to denote the values of the current phase-2 variable at the phase interface in response to the command, PHINT(PHI)=GRND.

GREAT....A large number, used in EARTH. Do not re-set. The default value may be re-set during installation to suit the precision of the computer.

H1....standard name used to denote first-phase enthalpy. The H1 term may be conveniently used to denote first-phase temperature, in which case the term may be reNAMEd (eg to 'TEMP').

H2....standard name used to denote second-phase enthalpy.

HIGH(PHI)....name used to denote the value of PHI on the high side of the cell in question.

INDVAR....is the current dependent- or auxiliary- variable number.

INTFRC....name used to denote interphase friction coefficient in response of the command, CFIPS=GRND.

INTMDT....name used to denote interphase mass-transfer rate in response of the command, CMDOT=GRND.

ISPH1....name used to denote specific heat capacity at constant pressure of the first phase in response of the command, CP1=GRND.

ISPH2....name used to denote specific heat capacity at constant pressure of the second phase in response of the command, CP2=GRND.

ISTEP....is the time-step number.

ISWEEP....is the current sweep number.

IX....ranges from 1 to NX, denoting cell location in X-direction of PHOENICS.

IXF....is the west extent of the current patch within the slab.

IXL....is the east extent of the current patch within the slab.

IY....ranges from 1 to NY, denoting grid-point location in y-direction of PHOENICS, but not necessarily in cartesian-y direction for BFC=T. In the latter IY=J-1 (see BODY-F for indicial nomenclature in use in body-fitted coordinates).

IYF....is the south extent of the current patch within the slab.

IYL....is the north extent of the current patch within the slab.

IZ....ranges from 1 to NZ, denoting grid-point location in z-direction of PHOENICS, but not necessarily in cartesian-z direction for BFC=T. In the later IZ=K-1 (see BODY-F for indicial nomenclature in use in body-fitted coordinates).

IZSTEP....is the current z-slab.

LD12....name used to denote the of values of the virtual mass in response of command, CVM=GRND.

LEN1....name used to denote the values of the length scale of phase 1 in response of command, EL1=GRND.

LEN2....name used to denote the values of the length scale of phase 2 in response of command, EL2=GRND.

LOW(PHI)....name used to denote the value of PHI on the low side of the cell in question.

MASS1....name used to denote the values, pertaining to the mass of phase-1 in each cell (i.e the product of phase-1 volume fraction, phase-1 density, and the volume of the cell). If the flow is single phase (ONEPHS=T) then MASS1 refers to the mass of fluid in the cells.

MASS2....name used to denote the values, pertaining to the mass of phase-2 in each cell (i.e the product of phase-2 volume fraction, phase-2 density, and the volume of the cell). If the flow is single phase (ONEPHS=T) then MASS2 has no significance.

NORTH(PHI)....name used to denote the value of PHI on the north side of the cell in question.

NZSTEP....is the number of z-slabs into which the domain is sub-divided.

OLD(PHI)....name used to denote the value of PHI appropriate to the previous instant of time.

P1....standard name used to denote first-phase pressure. P1 is also used to specify the first-phase mass-flow.

P2....standard name used to denote second-phase mass-flow.

PHINT(PHI) .... is the interface value of the variable indicated.

It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.

R1....standard name used to denote the first-phase volume fraction.

R2....standard name used to denote the second-phase volume fraction.

RESREF(PHI)....name used to denote reference value of residual for the variable indicated, and which is used to set the specific expressions.

RS....standard name used to denote the second-phase shadow volume fraction, i.e. that which would be present in the absence of inter-phase-mass-transfer.

RG2D....name used to denote the array of values of distances from the axis of symmetry to the cell centres. RG2D is only of significance in cylindrical-polar coordinates, ie. when CARTES=F and BFC=F.

RV2D....name used to denote the array of values of distances from the axis of symmetry to the north wall of the continuity cells, at which the v velocities are stored. RV2D is only of significance in cylindrical-polar coordinates, ie. when CARTES=F and BFC=F.

SOUTH(PHI)....name used to denote the value of PHI on the south side of the cell in question.

TIM....is the current time.

TINY....a small real number, defaulted to 1.E-20 which is used in EARTH to guard against division by zero. This value may be too small for machines with short word length, and would normally be set to an appropriate value at the time of installation.

TMP1 .... is the temperature of the first phase.

It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.

TMP2 .... is the temperature of the second phase.

It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.

U1....standard name used to denote the first-phase velocity component in the x-direction.

U2....standard name used to denote the second-phase velocity component in the x-direction.

V1....standard name used to denote the first-phase velocity component in the y-direction.

V2....standard name used to denote the second-phase velocity component in the y-direction.

VARMAX(PHI) .... name used to denote the maximum value allowed to variable indicated, and which is used to set the specific relationship. If VARMAX(PHI) is less than -1.e-10, it will be treated as the maximum absolute value of the increment of the value at any updating stage.

VARMIN(PHI) .... name used to denote the minimum value allowed to variable indicated, and which is used to set the specific relationship. If VARMIN(PHI) is less than -1.e-10, it will be assumed that the absolute change made to the variable at all updating stages is limited to VARMAX.

VISL....name used to denote the values of laminar kinematic viscosity of phase 1 in response of command, ENUL=GRND.

VIST....name used to denote the values of the turbulent kinematic viscosity of phase 1, in response of command, ENUT=GRND.

VOL....name used to denote an array containing the 'free' cell volumes available for fluid after blockages are deducted.

W1....standard name used to denote the first-phase velocity component in the z-direction.

W2....standard name used to denote the second-phase velocity component in the z-direction.

WALDIS....name used to denote the distance from the wall to the first internal node. It is used in connection with the wall functions for turbulence models.

WEST(PHI)....name used to denote the value of PHI on the west side of the cell in question.

WGRDNZ....name used to denote the values of the w-velocity of the grid at the high face of each z- slab when the moving grid option is active.

XC....is the symbol used for body-fitted coordinate grids to represent the cartesian coordinate x of the low-south-west corner of the continuity cell I, J, K.

XCO....is the symbol used for body-fitted coordinate grids to represent the "old" cartesian coordinate x of the low-south-west corner of the continuity cell I, J, K.

XG2D....name used to denote the array of values of: either (for CARTES=T or BFC=T) distances of the centres of the continuity cells from the x=0.0 plane in a Cartesian coordinate system, or (for CARTES=F and BFC=F) angular coordinates of the centres of the continuity cells in a cylindrical-polar system.

XRAT....is the name used to denote the multiplier of the previous XULAST which gives the current XULAST in response of the command, AZXU = GRND.

XU2D....name used to denote the values, as for XG2D except that the east faces of continuity cells are involved, not cell centres. Unlike XG2D, XU2D has no significance when BFC=T.

YC....is the symbol used for body-fitted coordinate grids to represent the cartesian y-coordinate of the low-south-west corner for the continuity cells I, J, K.

YCO....is the symbol used for body-fitted coordinate grids to represent the "old" cartesian y-coordinate of the low-south-west corner of the continuity cell I, J, K.

YG2D....name used to denote the values of the distances of the centres of the continuity cells from the y=0.0 plane (for CARTES=T or BFC=T) or cylinder (for CARTES=F and BFC=F).

YRAT....is the name used to denote the multiplier of the previous YVLAST which gives the current YVLAST in response of the command, AZYV = GRND.

YV2D....name used to denote the values, as for YG2D, except that the north faces of cells are involved, not cell centres. Unlike YG2D, YV2D has no significance when BFC=T.

ZC....is the symbol used for body-fitted coordinate grids to represent the cartesian z-coordinate of the low-south-west corner for the continuity cell I, J, K.

ZCO....is the symbol used for body-fitted coordinate grids to represent the "old" cartesian z-coordinate of the low-south-west corner of the continuity cell I, J, K.

ZGNZ....name used to denote the values for the distances of the centres of the continuity cells from the z=0.0 plane.

ZW....is the z coordinate of the high face of the current slab.

ZWNZ...name used to denote the values for distances of the HIGH faces of the continuity cells from the z=0.0 plane.