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 The information provided may be out of date.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.
Modifying the Fluid Flow Equation System
Posted 2 feb 2013, 04:00 GMT-5 Fluid & Heat, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 3.5a 0 Replies
Please login with a confirmed email address before reporting spam
Is it possible to change the fluid flow equation system in order to fit a logarithmic function in the derivative? I am currently using the earth science module to model a dual porosity fluid flow system. However, my numerical model requires me to have the derivative of a logarithmic function of pressure as opposed to just a pressure time dertivative. In other words I have
d(ln(p))/dt instead of d(p)/dt
where p is pressure and t is time. As far as I know, it is possible to change all terms of the equation system except for the derivative term. Any advice?
Thanks and Best Regards,
Andres Bracho.
Hello Andres Bracho
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.