CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > General Forums > Main CFD Forum

Sliding Mesh: How important is the rotating region size?

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 13, 2022, 12:53
Lightbulb Sliding Mesh: How important is the rotating region size?
  #1
New Member
 
Join Date: Mar 2022
Posts: 1
Rep Power: 0
drdr is on a distinguished road
Hello everyone,

I have a question to ask which I don't believe has been answered before.

Consider a stirred tank system (a tank with a impeller located within for mixing). One might model its rotation by creating two regions, a rotating region surrounding the impeller and a stationary zone incorporating the rest of the tank. It is up to the user to decide where the interface for these two regions should lie.

Now, it has been stated in literature that the location of such an interface has a significant effect on the resulting flow fields when employing the moving reference frame (MRF) rotation model. In other words, the interface must be positioned in such a way as to make the region large enough to capture both the acceleration and deceleration of fluid after the impeller. This will result in the most accurate description of the flow.

My question to you is the following: Is this also the case for the sliding mesh (SM) method? Is it important to consider how large the region surround the impeller is and to what degree will it affect the resulting calculations?

TL;DR Should one consider the location of the interface between the rotating and stationary regions of a stirred tank mixer using the sliding mesh (SM) method?
drdr is offline   Reply With Quote

Reply

Tags
interface, rotating region, size, sliding mesh, stirred tank

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
decomposePar problem: Cell 0contains face labels out of range vaina74 OpenFOAM Pre-Processing 37 July 20, 2020 05:38
[snappyHexMesh] Multi Region Mesh of a car filter Zephiro88 OpenFOAM Meshing & Mesh Conversion 3 September 11, 2019 19:34
Car external aerodynamic with wheel spinning issue hokhay FloEFD, FloWorks & FloTHERM 2 August 18, 2016 04:23
[snappyHexMesh] crash sHM H25E OpenFOAM Meshing & Mesh Conversion 11 November 10, 2014 11:27
engrid -> save as .stl with boundarie codes Zymon enGrid 31 August 29, 2011 13:40


All times are GMT -4. The time now is 18:13.