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Drag Force UDF in Non-Newtonian (powerlaw) Fluid |
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#1 |
New Member
Ali
Join Date: Mar 2011
Posts: 27
Rep Power: 15 ![]() |
Hello,
I am going to simulate the behaviour of micron-sized particles in an non-Newtonian fluid medium. In fact, the flow viscosity follows the "power-law". I know that "DEFINE_DPM_DRAG(Drag_force,Re,p)" can pass the force per mass of each particle to Fluent, and that the returned valuee must be in form of " ![]() As you know, in powerlaw fluid, Re is defined as ![]() ![]() ![]() The problem is, how does Fluent define Re number? Does Fluent think of Newtonian Re or this definition of Re? Should I pass this Re in "18*Cd*Re/24" or the Newtonian Re? Thank you! |
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#2 |
New Member
Marcos
Join Date: Nov 2013
Posts: 12
Rep Power: 13 ![]() |
Were you able to solve your problem?
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#3 |
Member
Liliana de Luca Xavier Augusto
Join Date: Feb 2013
Posts: 69
Rep Power: 14 ![]() |
Hi!
Have you guys solved the problem? I am having the same issue here... |
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Tags |
non-newtonian, particle tracking, udf |
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