|April 17, 2015, 06:02||
Re: Force estimation in fluent
Avinash T. Shinde
Join Date: Jul 2012
Posts: 10Rep Power: 5
Consider a channel flow between plates and with velocity inlet(atmospheric pressure) and pressure outlet boundary condition (below atmospheric), simulation results in static pressure in the whole domain to be below atmospheric.
If we use force with direction vectors option, it indicates solid is exerting force on fluid which should not be the case as closed channelized flow.
If we consider a bluff body in this domain with some angle of attach then situation is worse, if we take surface integral or force resolution as per the direction vector it shows all sides are suction side, which is unrealistic.
I am trying to find out whether calculations are simply based on the static pressure sign conventions or what? I tried referring to reference values which is being used to normalize the pressure in pressure force estimation, but what value should be used is a big question under such a circumstances, at present I am using pressure 0 in the reference option.
|drag forces, fluent drag forces, hydro-static forces|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Fluent jobs through pbs||ibnkureshi||FLUENT||5||June 9, 2011 13:43|
|Force Field - Vibrating Immerse Cantilever Problem - Fluent 6.3||herger||FLUENT||0||June 27, 2010 19:50|
|Airfoil - Over Estimation of CLmax with FLUENT||asd||Main CFD Forum||1||April 16, 2007 22:20|
|define body force (rho* g) in fluent||mohmed||FLUENT||3||June 14, 2006 11:36|
|Some help simulating Magnus Force using Fluent||Michele Spinolo||FLUENT||6||June 27, 2002 12:57|