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 The information provided may be out of date.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.
energy storage device (non isothermal flow)
Posted 04.10.2011, 15:03 GMT-4 Heat Transfer & Phase Change Version 4.2 3 Replies
Please login with a confirmed email address before reporting spam
I have a simple setup in which hot water is flowing inside the solid steel cylinder, I want to see how temperature profile changes with time. during flow water will give its energy to cylinder, hence water temp at outlet should be lower than inlet.
when I run it using time dependent solver it gives the error as "failed to find consistent initial values"
i m attaching the file
please help.
Attachments:
Please login with a confirmed email address before reporting spam
i will be important help for me?
waiting for your reply...
Please login with a confirmed email address before reporting spam
My advice is as follows.
Take into account the axial symmetry. Transform your 3D model into 2Daxi.
Apply a smooth change of the inlet velocity from 0 to 0.025 m/s (use a smeared step function).
Use a dense mesh.
Regards,
Andrzej
Please login with a confirmed email address before reporting spam
i can not go for 2d and symmetry because i want to extend this model to some other model which can not possible in 2d. i have one basic query, how can i see time dependent change on this type of non isothermal flow?