slip flow in a microchannel

July 12, 2007, 10:40

Hi all,

After reading alll the past comments in this forum,I was wondering had anyone found a way to incorporate knudsen slip effcts in their problem.There seems to be two alternatives

1) model the slip as a shear stress in the UDF.This I have tried doing but it converges in the very first step with 0 values.

2) Put wall slip with the knudsen slip and then no -slip in the bounday tab.This is again not working because I get errors when I initialize the problem.

Anyone having suceeded in this please elaborate.I am not asking for the UDF.I have the UDF just the methodology.

July 23, 2007, 12:23

Come on guys please help me out.If anyone has found out a way of doing this please report your finding.I would be more than happy to acknowledge your kind support.

July 12, 2007, 10:40	slip flow in a microchannel	#1
Siddharth Guest Posts: n/a	Hi all, After reading alll the past comments in this forum,I was wondering had anyone found a way to incorporate knudsen slip effcts in their problem.There seems to be two alternatives 1) model the slip as a shear stress in the UDF.This I have tried doing but it converges in the very first step with 0 values. 2) Put wall slip with the knudsen slip and then no -slip in the bounday tab.This is again not working because I get errors when I initialize the problem. Anyone having suceeded in this please elaborate.I am not asking for the UDF.I have the UDF just the methodology.

July 23, 2007, 12:23	Re: slip flow in a microchannel	#2
Siddharth Guest Posts: n/a	Come on guys please help me out.If anyone has found out a way of doing this please report your finding.I would be more than happy to acknowledge your kind support.

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