|January 8, 2015, 17:39||
Immersed solid, vs solid-fluid interaction to determine forces on a submerged solid
Join Date: Dec 2010
Posts: 8Rep Power: 7
I've been using Ansys 13 CFX to try to determine the forces exerted on a fixed, stationary device that's inserted into a pipe with water flowing through. Up till now, I've been building the (steady-state) simulations as follows:
I've then run the simulation and used the function calculator to work out the force on the fluid-solid interface side that's in the fluid domain, which gives me a force of about 12.5N in the direction of the fluid flow. This I am taking to be the force exerted on the device due to the flow.
I've since discovered that rather than defining the device as a solid domain, I can define it as an immersed solid and perform the simulation that way. So, I've rebuilt the model as follows:
I've since run the simulation and used the function calculator to work out the force on the solid domain, but this now gives me a force of 2.5N as opposed to 12.5N
I'm not really sure which value is the correct one, or whether I'm using the right simulation method and building the simulations right.
|Thread||Thread Starter||Forum||Replies||Last Post|
|Fluid Structure Interaction||Apollo||Main CFD Forum||5||July 4, 2011 16:15|
|flotran fluid solid interaction||Rishab Mahajan||Main CFD Forum||0||December 24, 2005 01:26|
|Fluid Solid Interaction - divergence||bebes||CFX||1||May 5, 2005 18:46|
|Terrible Mistake In Fluid Dynamics History||Abhi||Main CFD Forum||12||July 8, 2002 09:11|
|UDFs for Scalar Eqn - Fluid/Solid HT||Greg Perkins||FLUENT||0||October 11, 2000 03:43|