Simple problem, what's the solution?

black_spider · September 14, 2010, 02:33

Problem statement:

1) According to PHOENICS ENCYCLOPEDIA, to define fluid and solid in the solution domain, PRPS is used. FIINIT(PRPS)=value for domain fluid and SOLID is defined by INITIAL PATCH like as follows:

PATCH(PATCH NAME,INIVAL,......)
INIT(PATCH NAME,PRPS,0.0, value for SOLIDS)

According to this, PRPS for fluid does not give required result as I set by FIINIT(PRPS)=value

2)But if I use two separate INITIAL PATCH of PRPS for both fluid and solid, it gives corrects result.

so, why don't I get correct result by step 1?

any suggestions....

Hervé · September 20, 2010, 08:26

Did you check the value of the "INIADD" boolean command? Is it set to "F" or to "T"?

It may help ....

black_spider · September 21, 2010, 02:12

yup, I checked. INIADD=F that means value of domain fluid region will not be added to solid region.

black_spider · September 21, 2010, 21:14

I also try with INIADD=T. In this case PRPS of SOLID adds the value of PRPS of DOMAIN FLUID. but PRPS for fluid becomes incorrect....

September 14, 2010, 02:33	Simple problem, what's the solution?	#1
black_spider New Member designer spider Join Date: Sep 2010 Posts: 7 Rep Power: 15	Problem statement: 1) According to PHOENICS ENCYCLOPEDIA, to define fluid and solid in the solution domain, PRPS is used. FIINIT(PRPS)=value for domain fluid and SOLID is defined by INITIAL PATCH like as follows: PATCH(PATCH NAME,INIVAL,......) INIT(PATCH NAME,PRPS,0.0, value for SOLIDS) According to this, PRPS for fluid does not give required result as I set by FIINIT(PRPS)=value 2)But if I use two separate INITIAL PATCH of PRPS for both fluid and solid, it gives corrects result. so, why don't I get correct result by step 1? any suggestions....

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September 20, 2010, 08:26		#2
Hervé New Member Hervé Join Date: Mar 2009 Posts: 2 Rep Power: 0	Did you check the value of the "INIADD" boolean command? Is it set to "F" or to "T"? It may help ....

September 21, 2010, 02:12		#3
black_spider New Member designer spider Join Date: Sep 2010 Posts: 7 Rep Power: 15	yup, I checked. INIADD=F that means value of domain fluid region will not be added to solid region.

September 21, 2010, 21:14		#4
black_spider New Member designer spider Join Date: Sep 2010 Posts: 7 Rep Power: 15	I also try with INIADD=T. In this case PRPS of SOLID adds the value of PRPS of DOMAIN FLUID. but PRPS for fluid becomes incorrect....