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March 19, 2014, 08:51 |
Error in Routine PEEKI
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#1 |
New Member
Felipe S. Lima
Join Date: Mar 2014
Posts: 2
Rep Power: 0 |
Hi guys,
Here is my simulation: I have a cylindrical tube of 66.5 cm of length and 3 cm of diameter. It's a buyoant, three-phase and porous domains which 2 fluids go through and there is already solid (catalyst) inside. One of the fluids is a liquid (diesel) dispersed phase with hydrogen diluted, the other phase is a gaseous (H2) continuous phase. It has a reactional model which i have to remove sulfur from the liquid and has formation of H2S. Oh, it's operating at 10 MPa pressure and temperature of 643.15 K. My problem is when I specify the interface equilibrium model through Henry's Law for both H2 and H2S. So when I run the solver with these models active the solver crashes saying it found a error in subroutine PEEKI (I'm posting the error results file). Here is the message: Details of error:- ---------------- Error detected by routine PEEKI CDANAM = /FLOW/ALGORITHM/GLOBAL/SUBSYS/MASFRC_SS8 /MASFRC_MT4_FL2 /IDF_VAR_S CRESLT = NONE Current Directory : /FLOW/ASSEMBLE/TIME-0/EQUATIONS/MASFRC_MT5_FL1/IELG1 I know it's a typo but I couldn't find this error anywhere. So I will aprecciate a lot if someone give me any kind of direction. Thanks. (sorry if I did any grammatical mistak, english is not my native language) |
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March 19, 2014, 10:55 |
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#2 |
Member
Join Date: Dec 2009
Posts: 44
Rep Power: 16 |
Felipe,
are the components in the component pair transported - i.e. specified with transport equations? I believe this is a restriction in the solver, even though CFX-Pre may offer pairs which contain those of type constraint and algebraic. CG |
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March 19, 2014, 11:13 |
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#3 |
New Member
Felipe S. Lima
Join Date: Mar 2014
Posts: 2
Rep Power: 0 |
Gremlim,
Yes, most of them are transported through the fluids. The specified list of materials in each phase is the following: Gas Phase: H2 and H2S Liquid Phase: Diesel with sulfur (aprox. 9% of the phase mass fraction), desulfured diesel, H2 (aprox 1.7% in mass fraction) and H2S. With an observation, in the boundary conditions (initialization) I'm specifying a mass fraction of value equal to 0 for the H2S in both phases (since it's reaction product). My set of components pair details: Liquid: Desulfured Diesel as constraint, sulfured diesel, H2, H2S as transport equations (with kinematic diffusivities calculated through CEL expressions). Gas: H2 as Constraint and H2S as transport with the same kinematic diffusion of the H2S present in liquid phase (same calculation). Thanks for the response. |
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March 20, 2014, 02:32 |
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#4 |
Member
Join Date: Dec 2009
Posts: 44
Rep Power: 16 |
I think H2 needs to be a transport equation in both gas and liquid phases.
CG |
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