October 8, 2018 at 10:35 ammac_114Subscriber
I have a flow problem across porous cylinder, i am unable to find drag force or coefficient, is there anyway to find drag of a non-wall surface in Ansys Fluent?
October 8, 2018 at 10:44 amDrAmineAnsys Employee
What is the kind of the surface you want to evaluate the force? Which components are your expecting to see here? Can you check CFD-Post and its force calculator?
October 8, 2018 at 11:14 ammac_114Subscriber
The surface is permeable (fluid-cylinder interface), the cylinder is porous.I am expecting the pressure and viscous components of drag coefficients on the cylinder but when i go to monitors/forces... i am not able to get the porous cylinder surface and unable to define monitor for drag.
October 8, 2018 at 11:27 amDrAmineAnsys Employee
The force monitor will just work for walls. As it is permeable the force is equal to the pressure force plus the mass flow force (due to the advection of momentum). You can have that directly in CFD-Post or by using some Custom Field Function or UDF.
October 8, 2018 at 11:36 ammac_114SubscriberThanks alot for your reply,i will try what you have told and get back to u Asap.
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