Free surface height v/s time

September 22, 2005, 16:13

Hi all, I am working on a two phase free surface flow problem. I have a query regarding the output of interface in transient problem. I can track the free surface via plotting of contours in CFX-Post at various times. Now i wish to plot the height of free surface from Volume fraction data and other data. How can i plot free surface height(m) at particular point (say x = 5) v/s time ? Thanks,

Ashish

October 3, 2005, 00:30

Hi ashish,

I am not sure whether you can plot it.. but can you please try by defining one variable in post whose value will be liq vol fraction=0.5. If you can define that then you should be able to track the height of interface with time..

Think about writting an expression for getting liq vol fr=0.5

Regards Tuks

October 4, 2005, 14:13

Hi tuks, Thanks for reply. I was able to solve the problem. It is possible to track the transient free surface in CFX. Regards, Ashish

September 22, 2005, 16:13	Free surface height v/s time	#1
ashish Guest Posts: n/a	Hi all, I am working on a two phase free surface flow problem. I have a query regarding the output of interface in transient problem. I can track the free surface via plotting of contours in CFX-Post at various times. Now i wish to plot the height of free surface from Volume fraction data and other data. How can i plot free surface height(m) at particular point (say x = 5) v/s time ? Thanks, Ashish

October 3, 2005, 00:30	Re: Free surface height v/s time	#2
tuks Guest Posts: n/a	Hi ashish, I am not sure whether you can plot it.. but can you please try by defining one variable in post whose value will be liq vol fraction=0.5. If you can define that then you should be able to track the height of interface with time.. Think about writting an expression for getting liq vol fr=0.5 Regards Tuks

October 4, 2005, 14:13	Re: Free surface height v/s time	#3
ashish Guest Posts: n/a	Hi tuks, Thanks for reply. I was able to solve the problem. It is possible to track the transient free surface in CFX. Regards, Ashish

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Moving mesh	Niklas Wikstrom (Wikstrom)	OpenFOAM Running, Solving & CFD	122	June 15, 2014 06:20
UDF Defining VOF Free Surface at Outlet	Alex	Fluent UDF and Scheme Programming	13	August 8, 2012 16:50
free surface around a ship hull	Stephy	OpenFOAM Running, Solving & CFD	12	April 24, 2012 01:12
Linear analytical solution oto the 2D free sloshing water surface elevation	bearcat	Main CFD Forum	7	August 5, 2011 20:13
urgent request-Free surface height plot with time	KK	FLUENT	6	January 7, 2008 12:50