Forced vortex

anderubi · April 26, 2021, 13:44

I'm making a report in college about forced vortice. I have to contrast the results obtained with the formula h=(w^2*r^2)/2g with the simulation. The problem is that for an w=20,94rad/s and radius=97mm, h=0.21m. However, in the simulation, as you can see in the attached photo, the height that I get is h=0.125m. Does anyone know what mistake I'm making and how to fix it? Thank you.

cwl · April 26, 2021, 23:11

First of all - I'd refine the mesh, preferably at the air-liquid interface, it is definitely too smeared.
Second - do you track the mass of fluid during the simulation to make sure that it is conserved?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Forced Vortex Simulation in ANSYS CFX	RAJDEEP	CFX	1	October 23, 2019 18:47
Forced Vortex Simulation in ANSYS CFX	RAJDEEP	CFX	1	October 13, 2019 18:16
Presenation of vortex strength and velocity concept?	fruitkiwi	Main CFD Forum	0	September 26, 2012 22:08
turbulent scales of forced vortex and free vortex	lcw	Main CFD Forum	3	September 1, 2005 13:40
Free vortex - forced vortex	Armin Hofstädter	Main CFD Forum	2	November 17, 1998 18:55

April 26, 2021, 23:11		#2
cwl Senior Member Chaotic Water Join Date: Jul 2012 Location: Elgrin Fau Posts: 435 Rep Power: 17	First of all - I'd refine the mesh, preferably at the air-liquid interface, it is definitely too smeared. Second - do you track the mass of fluid during the simulation to make sure that it is conserved?