How to wisely choose a Courant Number?
Though my Courant number is less than one, in transient cases like lid-driven cavity flow etc, the courant number changes to greater than one, after a few timesteps/iterations making my solution not converge. How do I know beforehand if my solution will converge/diverge as the Courant number is changing with every iteration?
What you need is dynamic time-stepping. In OpenFOAM, you can specify the maximum Courant number you'd want and the solver automatically calculates the time-step after each iteration based on the specified Courant number. You can look for the following keywords, which are to be specified in the controlDict.
adjustTimeStep, maxCo, maxDeltaT
This website called assignment front page can provide me with further benefits. I can literally get everything on my hands in record speed. There are no drawbacks!
I have visited this site a lot and have come across with many articles here. Not every teacher on https://www.childrensacademyofmalta.com/ posts good content, some need to polish their skills. But it is pleasing to visit it.
You must ensure that the PISO will let the course number be below basketball stars one when you enter the time step. I handled all of the problems with the help of the simple foam software.
Login to add comment