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September 6, 2012, 02:42 |
time dependent source term
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#1 |
Member
Dr. Moloy Kumar Banerjee
Join Date: Jun 2011
Posts: 71
Rep Power: 14 |
Dear all,
I am trying to solve the effect of body acceleration on the human arterial system. For that I need to write some codes for a time dependent source term in DEFINE_SOURCE Macros. The acceleration term is given by a(t) = a0*Cos(omega*t+Phi), where a0 is the amplitude part of the acceleration in mm, but the Fluent document tells that the dimension of the source term should be in N/m^3. How to make the proper dimension for the problem. |
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September 6, 2012, 06:37 |
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#3 |
Member
Dr. Moloy Kumar Banerjee
Join Date: Jun 2011
Posts: 71
Rep Power: 14 |
Dear Amir,
Thanks for your response.Is there is any problem if my source term contains only time as a variable other than any space co ordinate? and in that case dS[eqn]=0, is it correct or not? N.B: Could you provide me your mail id please for further help... Thanks in advance |
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September 6, 2012, 09:05 |
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#4 | |
Senior Member
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Quote:
But about dS, it's not right. This term prescribes the derivative of the source term respect to the desired variable which you're considering its transport equation. e.g., if you're introducing a source term for x-momentum equation, the dS[eqn] would be 0 if the source is not a function of Ux. It's not about spacial variables. (refer to the UDF manual) Bests,
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Amir |
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