CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > COMSOL

Using Level Set Method to Model Evaporation in COMSOL

Register Blogs Community New Posts Updated Threads Search

Like Tree1Likes
  • 1 Post By jhoffma4

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 11, 2022, 16:05
Default Using Level Set Method to Model Evaporation in COMSOL
  #1
New Member
 
Jessica
Join Date: Sep 2022
Posts: 1
Rep Power: 0
jhoffma4 is on a distinguished road
Hi All,


I am new to this forum and did not find a COMSOL forum in the software specific listings, so I hope putting this in Main is acceptable.


I am trying to do a very simple model of evaporation using the level set method, and as you can see from the attachment the solution never converges and gets stuck in a very small time step. I ran it over night and had to cancel the computation.


I have tried many different settings for the Level Set parameters:

- Reinitialization Parameter, gamma
- Parameter controlling interface thickness, epsilon


I am following the rule of thumb given at the COMSOL knowledge bank, located here (Two-Phase Flow Modeling Guidelines - Knowledge Base (comsol.com)), but really I have no idea what these parameters mean physically and if that is the problem or some other aspect of my model.


Has anyone had experience with level set method?
Attached Images
File Type: png Screenshot 2022-09-11 134310.png (16.5 KB, 19 views)
File Type: jpg Screenshot 2022-09-11 135031.jpg (69.6 KB, 14 views)
File Type: jpg Screenshot 2022-09-11 134518.jpg (87.3 KB, 13 views)
File Type: png Screenshot 2022-09-11 134404.png (85.2 KB, 12 views)
File Type: jpg Screenshot 2022-09-11 135921.jpg (73.9 KB, 11 views)
aerosayan likes this.
jhoffma4 is offline   Reply With Quote

Reply

Tags
comsol, evaporation, level set method


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
does Hyperthreading affect the application of UDF? SJSW Fluent UDF and Scheme Programming 11 October 10, 2018 22:28
setting of level set method as initial condition sooroo3 FLUENT 4 July 31, 2018 04:20
Ansys Licence Serve on Ubuntu 16.04 LTS david.pasquale ANSYS 2 January 20, 2017 11:52
[snappyHexMesh] determining displacement for added points CFDnewbie147 OpenFOAM Meshing & Mesh Conversion 1 October 22, 2013 09:53
Level set and Ghost Fluid Method alvin11 OpenFOAM 1 December 6, 2011 04:10


All times are GMT -4. The time now is 21:54.