porous media formulation

teejey · August 16, 2013, 01:45

hi,
I'm trying to model the flow inside a flat heat pipe,with water as working fluid, which consists of vapour core, a wick structure and an outer casing. initially i tried to model the flow inside vapour core and wick structure separately, but couldnt get the proper fluid distribution. the error was with specifying the pressure at the boundaries.
As am new to FLUENT, i couldnt develop the problem correctly for formulating the wick structure.

can anyone help me regarding how to specify the pressure @ boundaries for the vapour core alone and how to develop the problem in porous media..i tried reading the tutorial for porous media but was not able to obtain a correct picture.
hope to hear from you soon.
Thanks in advance

Wyj · April 8, 2020, 05:56

Quote:

Originally Posted by teejey

hi,
I'm trying to model the flow inside a flat heat pipe,with water as working fluid, which consists of vapour core, a wick structure and an outer casing. initially i tried to model the flow inside vapour core and wick structure separately, but couldnt get the proper fluid distribution. the error was with specifying the pressure at the boundaries.
As am new to FLUENT, i couldnt develop the problem correctly for formulating the wick structure.

can anyone help me regarding how to specify the pressure @ boundaries for the vapour core alone and how to develop the problem in porous media..i tried reading the tutorial for porous media but was not able to obtain a correct picture.
hope to hear from you soon.
Thanks in advance

Dear tom , have you solved the problem

siddiquesil · October 23, 2024, 06:12

Need help on wick heat pipe related to Ansys Fluent simulation. How to define pressure inside vapor zone? Please, anyone?

MKuhn · October 23, 2024, 07:57

I think you can not define a pressure inside a zone, as the pressure is allways a results of the pressure conditions at the boundarys and the flow in between.

August 16, 2013, 01:45	porous media formulation	#1
teejey New Member tom jolly Join Date: Aug 2013 Posts: 3 Rep Power: 13	hi, I'm trying to model the flow inside a flat heat pipe,with water as working fluid, which consists of vapour core, a wick structure and an outer casing. initially i tried to model the flow inside vapour core and wick structure separately, but couldnt get the proper fluid distribution. the error was with specifying the pressure at the boundaries. As am new to FLUENT, i couldnt develop the problem correctly for formulating the wick structure. can anyone help me regarding how to specify the pressure @ boundaries for the vapour core alone and how to develop the problem in porous media..i tried reading the tutorial for porous media but was not able to obtain a correct picture. hope to hear from you soon. Thanks in advance

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October 23, 2024, 07:57		#4
MKuhn Senior Member Moritz Kuhn Join Date: Apr 2010 Location: Germany, Dresden Posts: 218 Rep Power: 17	I think you can not define a pressure inside a zone, as the pressure is allways a results of the pressure conditions at the boundarys and the flow in between.