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to add an equation of transport in the CFX

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Old   October 27, 2009, 15:04
Default to add an equation of transport in the CFX
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Luis Enrique Alva Huapaya
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I need to place one equacion of trasnporte of an additional variable, somebody can say to me like placing a gradient of an additional variable in the CFX?
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Old   October 28, 2009, 07:09
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Glenn Horrocks
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I don't understand what you are asking.

CFX supports additional variables with a convection/diffusion, or just diffusion or convection. I also supports some expression additional variables.
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Old   November 23, 2009, 09:31
Default Equation of transport
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Luis Enrique Alva Huapaya
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I need to place an equation of transport for an additional variable
the equation of transport of this additional variable is not an equation as it appears in the CFX, since they appear new terms that have q to be modeled

I want to know like placing in the CEL gradient of gradient of an additional variable
somebody can help me please
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Old   November 23, 2009, 18:13
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Quote:
new terms that have q to be modeled
What do you mean by this?

Gradients of additional variables are described in the CEL Expression language reference section of the documentation.
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Old   November 24, 2009, 03:11
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- Define the additional variable - Define it as transport equation under domain fluid models - Define another additional variable - Set the second one as algebraic. - Set the value to gradient e.g Pressure.Gradient X - Use second variable as input forsource term
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Old   November 26, 2009, 14:05
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Luis Enrique Alva Huapaya
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Thank you very much joey 2007 i feel good your idea about creating an additional variable and then put on a transport equation.
then, create a another variable and define it is an algebraic equation, in this Equation algebraic define an expression in which my source terms will be defined.
in order to place this I finish source I have q to go to the contour defined as entrance and to place in source

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