Mean Kinetic Energy

alastormoody11 · January 19, 2011, 10:44

Hi,

I am currently performing a free surface flow simulation using StarCCM+. The main aim of the simulation is to extract the fundamental sloshing frequency, to calculate which I need the variation of mean kinetic energy with respect to time.

The problem is there is no indicator for mean kinetic energy which is basically the slosh energy, the only energy indicator for the fluid as a whole I found was the turbulent kinetic energy indicator.

Any help in this regard will be greatly appreciated.

alastormoody11 · January 19, 2011, 10:48

Just to add to my earlier doubt,

I have referred a few papers regarding the extraction of the fundamental slosh frequency from the CFD simulations,

I found that it could be extracted from both energy or force variation data, however one of the papers speculates that calculation of the fundamental slosh frequency from the average force can be a source of errors.

Can anyone guide me in this regard?

January 19, 2011, 10:44	Mean Kinetic Energy	#1
alastormoody11 Senior Member Join Date: Jun 2009 Posts: 100 Rep Power: 17	Hi, I am currently performing a free surface flow simulation using StarCCM+. The main aim of the simulation is to extract the fundamental sloshing frequency, to calculate which I need the variation of mean kinetic energy with respect to time. The problem is there is no indicator for mean kinetic energy which is basically the slosh energy, the only energy indicator for the fluid as a whole I found was the turbulent kinetic energy indicator. Any help in this regard will be greatly appreciated.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
question about turbulent kinetic energy	junker4236	Main CFD Forum	19	April 19, 2017 05:46
How to view subgrid kinetic energy	Craig	FLUENT	3	September 8, 2012 12:34
LES of periodic pipe centerline turbulent kinetic energy	smehdi609	OpenFOAM	0	December 1, 2010 00:59
【Discrete Phase Method】about the turbulence kinetic energy	charlesluan	FLUENT	0	April 22, 2010 08:21
Mean flow kinetic energy	Jenny	CFX	3	November 19, 2008 21:12

January 19, 2011, 10:48		#2
alastormoody11 Senior Member Join Date: Jun 2009 Posts: 100 Rep Power: 17	Just to add to my earlier doubt, I have referred a few papers regarding the extraction of the fundamental slosh frequency from the CFD simulations, I found that it could be extracted from both energy or force variation data, however one of the papers speculates that calculation of the fundamental slosh frequency from the average force can be a source of errors. Can anyone guide me in this regard?