Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Microwaves Heating : Strange results
Posted 2011年10月25日 GMT-4 08:49 RF & Microwave Engineering, Heat Transfer & Phase Change Version 4.0a 0 Replies
Please login with a confirmed email address before reporting spam
I am trying to heat oil with the microwaves heating (RF module) using version 4.0 of COMSOL, but the temperature distribution which I am getting is very huge as compared to the real word and it is also confined to the area adjoining the microwaves port. In real word scenario, temperature should reach a few hundered degree celsius in heating for a day almost and also temperature distribution should be present at a distance say 50% wayay from the source inside the material. Although it will be small but it will be there. In my case I am getting temperature distribution of a few thousand degree Celsius near the port and confined in almost 10 cm distance from the source, which is strange for me.
Is it because I am defining the permittivity of crude oil as constant i.e. 1.5? How can I incorporate the change in phase of oil while heating in the model and what changes are necessarily required/expected?
Can you suggest any potential reason behind this?
Many thanks for any positive feedback.
Hello Muhammad Mohsin Rehman
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.