Re: flow field example, pressure oscillation

Hi Benny, The oscillations may be a result of pressure velocity decoupling. To avoid this on a collocated grid one needs to use an interpolation method such as Rhie-Chow interpolation or a more modern variant:

flow field example, pressure oscillation

Hi, I am doing a flow field calculation like http://www.ctcms.nist.gov/fipy/examples/flow/generated/examples.flow.stokesCavity.html However, I obtain spurious oscillations for the pressure solution. Patankar in his works is very clear that a staggered grid should be used for the SIMPLE algorithm,