CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Running, Solving & CFD

water rivulet on a circular cylinder

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   December 4, 2015, 00:53
Default water rivulet on a circular cylinder
  #1
Senior Member
 
Join Date: Jan 2013
Posts: 118
Rep Power: 5
kkpal is on a distinguished road
Dear all,

I would like to simulate the dynamic equilibrium of a water rivulet on a bridge cable with OpenFOAM 2.4.0. Now the model is simplified to a 2D problem, as shown in the figure. The water rivulet on the cable fluctuates with the pressure variation induced by the Karman vortex from the cylinder. Mainly I would like to extract the dynamic drag and lift forces on the cylinder.

I am considering two ways. The first one is regard the water rivulet as a rigid body, the shape of which does not change according to the wind pressure. In this case I will need a dynamic mesh like the movingCone tutorial case. However, since the motion of the rivulet might be large, I'm afraid the deformation of the mesh near the cylinder surface will deteriorate very severely.

The second way is making use of the VOF solvers like interFoam or interDyMFoam. In this case the shape of the rivulet will also deform. Currently I am setting up the test cases in this scenario. However, I do not have much experience with VOF method and I'm not sure whether this will succeed.

As I am testing my cases I also would like to hear your suggestion on this topic. Any advice or comment is much appreciated.
Attached Images
File Type: png rivulets.PNG (16.9 KB, 13 views)
kkpal is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
problem of the drag's convergence for a circular cylinder with a synthetic jet (udf) bia FLUENT 0 February 17, 2015 12:06
Cylinder motion along a circular path karamiag OpenFOAM Running, Solving & CFD 0 May 25, 2014 05:05
Local Nusselt Number Around Circular Cylinder! mskamran FLUENT 2 May 9, 2013 09:12
Flow past 2 smooth circular cylinder slip FLUENT 0 July 8, 2010 18:45
Grid generation cross flow over circular cylinder Yanma OpenFOAM Native Meshers: blockMesh 0 July 7, 2010 08:02


All times are GMT -4. The time now is 11:12.