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CHAPTER U: UNSTRUCTURED HEXAGONAL GRID CASES
Shortcuts:
U.1 2D O grid with splits. Conduction.
U.2 2D Half Channel: laminar flow: No split cells: NSPCG. Inlet.
U.3 2D Half Channel: laminar flow: No split cells: NSPCG. Source.
U.4 2D Half Channel: Conduction: No split cells: NSPCG.
U.5 2D Half Channel: laminar flow: split cells: NSPCG. Inlet.
U.6 2D Half Channel: laminar flow: split cells: NSPCG. Source.
U.7 2D Half Channel: Conduction: split cells: NSPCG.
U.8 Driven Cavity with a blockage in it. Laminar Flow.
************************************************************************
TITLE U.1 2D O grid with splits. Conduction.
USER mmr
************************************************************************
GRID UNSTructured elements = 9
CONNectivity 'ansdu00.cnc'
CONNectivity SPLIt 'ansdu00.blk'
COORdinate X Y VERTices 'ansdu00.xyz'
SET T 0.0
BOUNdary LINEar T = 0.0 +1.0 * X
DIFFusion SECOnd order SKEW H
CONVergence REFErence GLOBal H 1.0E-10 5
SCREEN WIDE
MATRix SOR H
OUTPUT OFF
OUTPut TABLes T FF X
SOLVE H 200 STEPs STEADy mode
SET LINEar FF 0.0 +1.0 * X
SET LINEar FF 0.0 -1.0 * T ADD
SAVE T FF 'ansdu00.sav'
/
WRITE NBRS NFACE LINK VOLF VOLRF AF
WRITE VOL
END
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************************************************************************
TITLE U.2 2D Half
Channel: laminar flow: No split cells: NSPCG. Inlet.
USER mmr
************************************************************************
GRID UNSTructured 25 elements
CONNectivity 'ansdu01.cnc'
COORdinate 'ansdu01.xyz'
INCLude 'ansdu01.loc'
INLET ID=XMINUS X-
OUTLET ID=XPLUS X-
SYMMetry ID=YPLUS X-
WALL ID=YMINUS X-
SET U 1.2
SET V 1.0E-08
SET P 1.0E-08
DENSity 1.5
VISCosity 0.1
BOUNdary U ID=XMINUS X- VALUE = 1.2
SCReen WIDE
DIAGnostic element 11 print U V P RU RP 'ansdu01.diag'
DEBUG GEOMetry OFF
RELAxation U 0.3 V 0.3 P 0.5
/MATRix SWEEps U 2 V 2 P 4
/CONVergence GLOBAl U 1.0E-06 REFErence
/CONVergence GLOBAl P 1.0E-06 5
MATRix NSPCg U V CHOLesky GMRES DiAGnostic SUMMary
and ELIMinate unnecessary equations.
MATRix NSPCg P CHOLesky CONJugate gradient.
MATRix NSPCg TOLErance 1.0E-10
MATRix NSPCg machine ZERO 1.0E-20
CONVergence GLOBAl U 1.0E-06 5 REFErence
CONVergence GLOBAl V 1.0E-06 5
CONVergence GLOBAl P 1.0E-06 20
!STATistics U 'ansdu01.stat'
!STATistics V 'ansdu01.stat'
!STATistics P 'ansdu01.stat'
OUTPUT OFF
SOLVE U V P STEADY 300 steps
/
WRITE NBRS
WRITE NFACE
WRITE LINK
WRITE VOLF
WRITE VOLRF
WRITE VOL
WRITE AF
WRITE FC
/
OUTPUT NOW TABLES U V P MTYP
SAVE NOW U V P 'ansdu01.sav'
END/
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************************************************************************
TITLE U.3 2D Half
Channel: laminar flow: No split cells: NSPCG. Source.
USER mmr
************************************************************************
GRID UNSTructured 25 elements
CONNectivity 'ansdu01.cnc'
COORdinate 'ansdu01.xyz'
INCLude 'ansdu01.loc'
WALL ID=XMINUS X-
OUTLET ID=XPLUS X-
SYMMetry ID=YPLUS X-
WALL ID=YMINUS X-
SET U 1.0E-08
SET V 1.0E-08
SET P 1.0E-08
DENSity 1.5
VISCosity 0.1
SOURce MOMEntum ID=XMINUS X- AREA TOTAl mass_flow=0.9
SCREen WIDE
DIAGnostic element 11 print U V P RU RP 'ansdu01a.diag'
DEBUG GEOMetry OFF
RELAxation U 0.3 V 0.3 P 0.5
/MATRix SWEEps U 2 V 2 P 4
/CONVergence GLOBAl U 1.0E-06 REFErence
/CONVergence GLOBAl P 1.0E-06 5
MATRix NSPCg U V CHOLesky GMRES DiAGnostic SUMMary
and ELIMinate unnecessary equations.
MATRix NSPCg P CHOLesky CONJugate gradient.
CONVergence GLOBAl U 1.0E-06 5 REFErence
CONVergence GLOBAl V 1.0E-06 5
CONVergence GLOBAl P 1.0E-06 20
!STATistics U 'ansdu01a.stat'
!STATistics V 'ansdu01a.stat'
!STATistics P 'ansdu01a.stat'
OUTPUT OFF
SOLVE U V P STEADY 300 steps
OUTPUT NOW TABLES U V P MTYP
SAVE NOW U V P 'ansdu01a.sav'
END
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************************************************************************
TITLE U.4 2D Half
Channel: Conduction: No split cells: NSPCG.
USER mmr
************************************************************************
GRID UNSTructured 25 elements
CONNectivity 'ansdu01.cnc'
COORdinate 'ansdu01.xyz'
INCLude 'ansdu01.loc'
SET T 1.2
DENSity 1.5
VISCosity 0.1
SPECIfic HEAT 1.8
PRANDL Number 0.71
BOUNdary T LINEar 0.1 +1.1 * X
SCREen WIDE
DIAGnostic element 11 print H RH 'ansdu01T.diag'
DEBUG GEOMetry OFF
/MATRix SWEEps H 3
/CONVergence GLOBAl H 1.0E-06 REFErence
MATRix NSPCg H CHOLesky GMRES DiAGnostic SUMMary
and ELIMinate unnecessary equations.
CONVergence GLOBAl H 1.0E-06 5 REFErence
!STATistics H 'ansdu01T.stat'
OUTPUT OFF
SOLVE H STEADY 300 steps
SET C LINEar 0.1 +1.1 * X
SET FF LINEar 0.1 +1.1 * X
SET FF LINEar 0.0 -1.0 * T ADD
/
OUTPUT NOW TABLES T C FF
SAVE NOW T C FF 'ansdu01T.sav'
END
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************************************************************************
TITLE U.5 2D Half
Channel: laminar flow: split cells: NSPCG. Inlet.
USER mmr
************************************************************************
GRID UNSTructured 41 elements
CONNectivity 'ansdu02.cnc'
CONNectivity SPLIT 'ansdu02.blk'
COORdinate 'ansdu02.xyz'
INCLude 'ansdu02.loc'
INLET ID=XMINUSP X-
OUTLET ID=XPLUSP X-
SYMMetry ID=YPLUSP X-
WALL ID=YMINUSP X-
SET U 1.2
SET V 1.0E-08
SET P 1.0E-08
DENSity 1.5
VISCosity 0.1
BOUNdary U ID=XMINUSP X- VALUE = 1.2
SCREen WIDE
DIAGnostic element 25 print U V P RU RP 'ansdu02.diag'
RELAxation U 0.3 V 0.3 P 0.5
/MATRix SWEEps U 2 V 2 P 4
/CONVergence GLOBAl U 1.0E-06 REFErence
/CONVergence GLOBAl P 1.0E-06 5
MATRix NSPCg U V NEUMann GMRES DiAGnostic SUMMary
and ELIMinate unnecessary equations.
MATRix NSPCg P NEUMann CONJugate gradient.
MATRix NSPCg TOLErance 1.0E-10
MATRix NSPCg machine ZERO 1.0E-20
CONVergence GLOBAl U 1.0E-06 5 REFErence
CONVergence GLOBAl V 1.0E-06 5
CONVergence GLOBAl P 1.0E-06 20
!STATistics U 'ansdu02.stat'
!STATistics V 'ansdu02.stat'
!STATistics P 'ansdu02.stat'
OUTPUT OFF
SOLVE U V P STEADY 300 steps
/
WRITE NBRS
WRITE NFACE
WRITE LINK
WRITE VOLF
WRITE VOLRF
WRITE VOL
WRITE AF
WRITE FC
/
OUTPUT NOW TABLES U V P MTYP
SAVE NOW U V P 'ansdu02.sav'
END
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************************************************************************
TITLE U.6 2D Half
Channel: laminar flow: split cells: NSPCG. Source.
USER mmr
************************************************************************
GRID UNSTructured 41 elements
CONNectivity 'ansdu02.cnc'
CONNectivity SPLIT 'ansdu02.blk'
COORdinate 'ansdu02.xyz'
INCLude 'ansdu02.loc'
WALL ID=XMINUSP X-
OUTLET ID=XPLUSP X-
SYMMetry ID=YPLUSP X-
WALL ID=YMINUSP X-
SET U 1.2
SET V 1.0E-08
SET P 1.0E-08
DENSity 1.5
VISCosity 0.1
SOURce MOMEntum ID=XMINUSP X- AREA TOTAl mass_flow=0.9
SCREen WIDE
DIAGnostic element 25 print U V P RU RP 'ansdu02a.diag'
RELAxation U 0.3 V 0.3 P 0.5
/MATRix SWEEps U 2 V 2 P 4
/CONVergence GLOBAl U 1.0E-06 REFErence
/CONVergence GLOBAl P 1.0E-06 5
MATRix NSPCg U V NEUMann GMRES DiAGnostic SUMMary
and ELIMinate unnecessary equations.
MATRix NSPCg P NEUMann CONJugate gradient.
CONVergence GLOBAl U 1.0E-06 5 REFErence
CONVergence GLOBAl V 1.0E-06 5
CONVergence GLOBAl P 1.0E-06 20
!STATistics U 'ansdu02a.stat'
!STATistics V 'ansdu02a.stat'
!STATistics P 'ansdu02a.stat'
OUTPUT OFF
SOLVE U V P STEADY 300 steps
OUTPUT NOW TABLES U V P MTYP
SAVE NOW U V P 'ansdu02a.sav'
END
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************************************************************************
TITLE U.7 2D Half
Channel: Conduction: split cells: NSPCG.
USER mmr
************************************************************************
GRID UNSTructured 41 elements
CONNectivity 'ansdu02.cnc'
CONNectivity SPLIT 'ansdu02.blk'
COORdinate 'ansdu02.xyz'
INCLude 'ansdu02.loc'
SET T 1.2
DENSity 1.5
VISCosity 0.1
SPECIfic HEAT 1.8
PRANDL Number 0.71
BOUNdary T LINEar 0.1 +1.1 * X
DIFF SKEW H
SCREen WIDE
DIAGnostic element 25 print H RH 'ansdu02T.diag'
/MATRix SWEEps H 3
/CONVergence GLOBAl H 1.0E-06 REFErence
MATRix NSPCg H NEUMann GMRES DiAGnostic SUMMary
and ELIMinate unnecessary equations.
CONVergence GLOBAl H 1.0E-06 5 REFErence
!STATistics H 'ansdu02T.stat'
OUTPUT OFF
SOLVE H STEADY 300 steps
SET C LINEar 0.1 +1.1 * X
SET FF LINEar 0.1 +1.1 * X
SET FF LINEar 0.0 -1.0 * T ADD
OUTPUT NOW TABLES T C FF
SAVE NOW T C FF 'ansdu02T.sav'
END
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*************************************************************************
TITLE: U.8 Driven Cavity
with a blockage in it. Laminar Flow.
USER mmr
*************************************************************************
GRID UNSTructured elements = 800
CONNectivity 'ansdu06.cnc'
COORdinate X Y VERTices 'ansdu06.xyz'
SET U 1.0E-09
SET V 1.0E-09
SET P 1.0E-09
WALLS default
LOCAte PAIR ID=TOPWAL
771,4 772,4 773,4 774,4 775,4 776,4 777,4 778,4 779,4 780,4
781,4 782,4 783,4 784,4 785,4 786,4 787,4 788,4 789,4 790,4
791,4 792,4 793,4 794,4 795,4 796,4 797,4 798,4 799,4 800,4
BOUNdary U VALUE = 1.0 ID=TOPWAL X-
LAMInar FLOW
DENSity 1.0
VISCosity 1.0E-02
RELAxation U 0.3 V 0.3 P 0.5
MATRix SWEEPs for U 3 V 3 P 4
CONVergence REFErence GLOBal U 1.0E-08
CONVergence GLOBal P 1.0E-08 5
SCREEN WIDE
DIAGnostic ELEMent 280 print RU,RV,RP,BP,U,V,P 'ansdu06.diag'
DEBUG GEOMetry OFF
OUTPUT OFF
OUTPUT TABLES U V P MTYP
SOLVE U V P 1000 STEPs STEADy mode
SAVE U V P 'ansdu06.sav'
END
/
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