talk=f;run(1,4)
GROUP 1. Run title and other preliminaries
TEXT(Transfer objects; 2d convection; 1st run.
LIBREF=856
TITLE
DISPLAY
This example illustrates the use of In-Form transfer objects
for a 2D convection-diffusion problem in the y-z plane.
This case simulates flow in a channel.
The inlet flow has a uniform structure.
North and south walls are immobile and have uniform
temperature. The source of a non-dimensional concentration
is set in the first cell only.
The solved area is divided into three parts.
The solution in each part is made in a separate run.
! !
/////////////////!// North Wall ///!///////////////////
-----------------+-----------------+-------------------
--> ! ! ->
--> 1st run ! 2nd run ! 3rd run -->
-->C ! ! ->
-----------------+-----------------+-------------------
/////////////////!// South Wall ///!///////////////////
^ y ! !
|-------> z-direction
The
TROB1 transfer object at the high boundary is formed at the
end of the first run by means of an '(export' In-Form statement.
The second run reads the information at the low boundary from the
TROB1 object by means of an '(import' In-Form statement and
creates the
TROB2 transfer object at the high boundary.
The third run reads the information at the low boundary from the
TROB2 object.
The fourth run simulates the flow in the whole channel without
the partitioned-terrain technique for comparison with the previous
three runs.
The Q1 contains PHOTON USE commands
ENDDIS
PHOTON USE
p
phi1
1 8 1
vi -x
msg picture is enlarged 8 times in y direction
msg first run
gr ou x 1
msg contours of H1 with Pr = 1.5
set con scale range on
con h1 x 1 fi;0 1;0.0001;upause 2
msg velocity vectors
vec x 1
upause 2
con c1 x 1 fi;0 1;0.0001;upause 2
p
phi2
1 8 1
vi -x
msg picture is enlarged 8 times in y direction
msg second run
gr ou x 1
msg contours of H1 with Pr = 1.5
set con scale range on
con h1 x 1 fi;0 1;0.0001;upause 2
msg velocity vectors
vec x 1
upause 2
con c1 x 1 fi;0 1;0.0001;upause 2
p
phi3
1 8 1
vi -x
msg picture is enlarged 8 times in y direction
msg third run
gr ou x 1
msg contours of H1 with Pr = 1.5
con h1 x 1 fi;0 1;0.0001;upause 2
msg velocity vectors
vec x 1
upause 2
con c1 x 1 fi;0 1;0.0001
upause 2
p
phi4
1 8 1
vi -x
msg picture is enlarged 8 times in y direction
msg third run
gr ou x 1
msg contours of H1 with Pr = 1.5
con h1 x 1 fi;0 1;0.0001;upause 2
msg velocity vectors
vec x 1
upause 2
con c1 x 1 fi;0 1;0.0001
enduse
First run
---------
Problem data
REAL(WINL,VINL,HINL,WMOV,HMOV,POUT,PCOF)
WINL=0.1 ! Inlet X velocity
VINL=0.0 ! Inlet Y velocity
HINL=0.0 ! Inlet enthalpy
WMOV=0.0 ! Moving wall velocity
HMOV=1.0 ! Moving wall enthalpy
POUT=0.0 ! Outlet pressure
PCOF=10000. ! Outlet pressure coefficient
GROUP 4. Y-direction grid specification
GRDPWR(Y,10,0.01,1.0)
GROUP 5. Z-direction grid specification
GRDPWR(Z,20,0.2,1.0)
GROUP 7. Variables stored, solved & named
SOLVE(P1,V1,W1,H1,C1)
GROUP 8. Terms (in differential equations) & devices
** De-activate the built-in source term
TERMS(H1,N,Y,Y,Y,Y,Y)
GROUP 9. Properties of the medium (or media)
ENUL=1.E-5; PRNDTL(H1)=1.5
GROUP 11. Initialization of variable or porosity fields
FIINIT(W1)=WINL
GROUP 13. Boundary conditions and special sources
Inlets
PATCH(IN,LOW,1,NX,1,NY,1,1,1,1)
(SOURCE of P1 at IN is coval(fixflu,rho1*WINL))
(SOURCE of W1 at IN is coval(onlyms,WINL))
(SOURCE of V1 at IN is coval(onlyms,VINL))
(SOURCE of H1 at IN is coval(onlyms,HINL))
PATCH(SOURCE,CELL,1,1,1,1,1,1,1,1)
COVAL(SOURCE,C1,FIXVAL,1)
Walls
PATCH(SW,SWALL,1,NX,1,1,1,NZ,1,1)
(SOURCE of W1 at SW is coval(1.,WMOV))
(SOURCE of H1 at SW is coval(1.,HMOV))
PATCH(NW,NWALL,1,NX,NY,NY,1,NZ,1,1)
(SOURCE of W1 at NW is coval(1.,WMOV))
(SOURCE of H1 at NW is coval(1.,HMOV))
Outlets
PATCH(OUT,HIGH,1,NX,1,NY,NZ,NZ,1,1)
COVAL(OUT,P1,PCOF,POUT)
INFORM13BEGIN
! creation export transfer object
PATCH(PAT1,HIGH,1,NX,1,NY,NZ,NZ,1,1)
(EXPORT in TROB1 at PAT1)
INFORM13END
GROUP 15. Termination of sweeps
LSWEEP=200
GROUP 22. Spot-value print-out
IYMON=NY/2; IZMON=10; TSTSWP=-1
distil=t
EX(P1)=1.163E-02
EX(W1)=1.000E-01
EX(V1)=3.414E-04
EX(H1)=5.432E-01
EX(C1)=1.484E-01
NSAVE=PHI1
LSG57=T
STOP
Second run
----------
TEXT(Transfer objects; 2d convection; 2nd run.
Problem data
REAL(WINL,VINL,HINL,WMOV,HMOV,POUT,PCOF)
WINL=0.1 ! Inlet X velocity
VINL=0.0 ! Inlet Y velocity
HINL=0.0 ! Inlet enthalpy
WMOV=0.0 ! Moving wall velocity
HMOV=1.0 ! Moving wall enthalpy
POUT=0.0 ! Outlet pressure
PCOF=10000. ! Outlet pressure coefficient
GRDPWR(Y,10,0.01,1.0)
GRDPWR(Z,20,0.2,1.0)
SOLVE(P1,V1,W1,H1,C1)
TERMS(H1,N,Y,Y,Y,Y,Y)
ENUL=1.E-5; PRNDTL(H1)=1.5
Walls
PATCH(SW,SWALL,1,NX,1,1,1,NZ,1,1)
(SOURCE of W1 at SW is coval(1.,WMOV))
(SOURCE of H1 at SW is coval(1.,HMOV))
PATCH(NW,NWALL,1,NX,NY,NY,1,NZ,1,1)
(SOURCE of W1 at NW is coval(1.,WMOV))
(SOURCE of H1 at NW is coval(1.,HMOV))
Outlets
PATCH(OUT,HIGH,1,NX,1,NY,NZ,NZ,1,1)
COVAL(OUT,P1,PCOF,POUT)
INFORM13BEGIN
! Reading import transfer object
PATCH(PAT1,LOW,1,NX,1,NY,1,1,1,1)
(IMPORT from TROB1 at PAT1)
! creation export transfer object
PATCH(PAT2,HIGH,1,NX,1,NY,NZ,NZ,1,1)
(EXPORT in TROB2 at PAT2)
INFORM13END
LSWEEP=200
IYMON=NY/2; IXMON=10; TSTSWP=-1
distil=t
EX(P1)=1.131E-02
EX(W1)=1.000E-01
EX(V1)=3.341E-05
EX(H1)=8.346E-01
EX(C1)=1.405E-01
NSAVE=PHI2
LSG57=T
STOP
Third run
---------
TEXT(Transfer objects; 2d convection; 3rd run.
Problem data
REAL(WINL,VINL,HINL,WMOV,HMOV,POUT,PCOF)
WINL=0.1 ! Inlet X velocity
VINL=0.0 ! Inlet Y velocity
HINL=0.0 ! Inlet enthalpy
WMOV=0.0 ! Moving wall velocity
HMOV=1.0 ! Moving wall enthalpy
POUT=0.0 ! Outlet pressure
PCOF=10000. ! Outlet pressure coefficient
GRDPWR(Y,10,0.01,1.0)
GRDPWR(Z,20,0.2,1.0)
SOLVE(P1,V1,W1,H1,C1)
TERMS(H1,N,Y,Y,Y,Y,Y)
ENUL=1.E-5; PRNDTL(H1)=1.5
Walls
PATCH(SW,SWALL,1,NX,1,1,1,NZ,1,1)
(SOURCE of W1 at SW is coval(1.,WMOV))
(SOURCE of H1 at SW is coval(1.,HMOV))
PATCH(NW,NWALL,1,NX,NY,NY,1,NZ,1,1)
(SOURCE of W1 at NW is coval(1.,WMOV))
(SOURCE of H1 at NW is coval(1.,HMOV))
Outlets
PATCH(OUT,HIGH,1,NX,1,NY,NZ,NZ,1,1)
COVAL(OUT,P1,PCOF,POUT)
INFORM13BEGIN
! Reading import
PATCH(PAT1,LOW,1,NX,1,NY,1,1,1,1)
(IMPORT from TROB2 at PAT1)
PATCH(PAT2,HIGH,1,NX,1,NY,NZ,NZ,1,1)
(EXPORT in TROB3 at PAT2)
INFORM13END
LSWEEP=200
IYMON=NY/2; IZMON=10; TSTSWP=-1
distil=t
EX(P1)=1.131E-02
EX(W1)=1.000E-01
EX(V1)=3.342E-05
EX(H1)=9.380E-01
EX(C1)=1.405E-01
NSAVE=PHI3
LSG57=T
STOP
Fourth run
---------
TEXT(2d conv. without transfer ob. 4th run.
Problem data
REAL(WINL,VINL,HINL,WMOV,HMOV,POUT,PCOF)
WINL=0.1 ! Inlet X velocity
VINL=0.0 ! Inlet Y velocity
HINL=0.0 ! Inlet enthalpy
WMOV=0.0 ! Moving wall velocity
HMOV=1.0 ! Moving wall enthalpy
POUT=0.0 ! Outlet pressure
PCOF=10000. ! Outlet pressure coefficient
GRDPWR(Y,10,0.01,1.0)
GRDPWR(Z,60,0.6,1.0)
SOLVE(P1,V1,W1,H1,C1)
TERMS(H1,N,Y,Y,Y,Y,Y)
ENUL=1.E-5; PRNDTL(H1)=1.5
FIINIT(W1)=WINL
Inlets
PATCH(IN,LOW,1,NX,1,NY,1,1,1,1)
(SOURCE of P1 at IN is coval(fixflu,rho1*WINL))
(SOURCE of W1 at IN is coval(onlyms,WINL))
(SOURCE of V1 at IN is coval(onlyms,VINL))
(SOURCE of H1 at IN is coval(onlyms,HINL))
PATCH(SOURCE,CELL,1,1,1,1,1,1,1,1)
COVAL(SOURCE,C1,FIXVAL,1)
Walls
PATCH(SW,SWALL,1,NX,1,1,1,NZ,1,1)
(SOURCE of W1 at SW is coval(1.,WMOV))
(SOURCE of H1 at SW is coval(1.,HMOV))
PATCH(NW,NWALL,1,NX,NY,NY,1,NZ,1,1)
(SOURCE of W1 at NW is coval(1.,WMOV))
(SOURCE of H1 at NW is coval(1.,HMOV))
Outlets
PATCH(OUT,HIGH,1,NX,1,NY,NZ,NZ,1,1)
COVAL(OUT,P1,PCOF,POUT)
LSWEEP=200
IYMON=NY/2; IZMON=10; TSTSWP=-1
distil=t
EX(P1)=3.477E-02
EX(W1)=1.000E-01
EX(V1)=1.144E-04
EX(H1)=7.716E-01
EX(C1)=1.432E-01
NSAVE=PHI4
LSG57=T
STOP