# dynamic viscosity=f(pressure)

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June 15, 2009, 10:21
dynamic viscosity=f(pressure)
#1
New Member

Eric
Join Date: May 2009
Posts: 9
Rep Power: 9
Hey,

there is a relationship between the dynamic viscosity and the pressure (see pic). Does anyone know, how to set up in CFX 11.0?
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 June 15, 2009, 11:10 #2 Senior Member     George Join Date: Mar 2009 Location: Birmingham, UK Posts: 257 Rep Power: 10 what do you want to do? __________________ Top 4 tips 1. Knowledge is everything and Ignorance is dangerous. 2. Understand your limitations and try to eliminate them. 3. Get yerself a bike and hoon the chuffer. You will soon learn why dogs like to hang their heads out the car window. 4. Please before asking any questions on how to run simulations in CFX, go though all the tutorials

June 15, 2009, 12:12
#3
New Member

Eric
Join Date: May 2009
Posts: 9
Rep Power: 9
Quote:
 Originally Posted by ckleanth what do you want to do?
Calculate with a variable dynamic viscosity. Like Sutherlands Formula, just with dynamic viscosity=f(pressure)

 June 15, 2009, 12:51 #4 Senior Member     George Join Date: Mar 2009 Location: Birmingham, UK Posts: 257 Rep Power: 10 you can define a cel function for dynamic viscosity but CFX doesent like that very much. you have a number models to chose for non newtonian fluids like the Sutherlands Formula, Bingham, Bird Carreau, Herschel Bulkley, etc ask your ANSYS representative for examples __________________ Top 4 tips 1. Knowledge is everything and Ignorance is dangerous. 2. Understand your limitations and try to eliminate them. 3. Get yerself a bike and hoon the chuffer. You will soon learn why dogs like to hang their heads out the car window. 4. Please before asking any questions on how to run simulations in CFX, go though all the tutorials

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