Explicit Pressure Based Scheme
 

Hi

Till now what ever pressure based scheme I have read are implicit, are there any explicit pressure based scheme.

Thanks

Apurva

Re: Explicit Pressure Based Scheme
 

Really ?

if you read Versteeg's book, it tells you what is the explicit scheme on page 171, and then the Crank-Nicolson scheme and the fully implicit scheme on the subsequent papges.

Li

Re: Explicit Pressure Based Scheme
 

Hello,

So how do you couple the pressure-velocity in case of an incompressible fluid?

Do you use the old pressure field to calculate the new velocity field and then adjust the pressure field afterwards?

Best Regards

Re: Explicit Pressure Based Scheme
 

Correct. You can read Versteeg's book. In page 142, it states that an initial pressure field is guessed....

Regards

Li

Re: Explicit Pressure Based Scheme
 

SIMPLE alghorithm p.142.

Ok since my maths aren't my strongpoint I might be wrong here, but doesn't that make the calculation quite implicit (i.e. you dont't use all known values to calculate for instance x-velocity component in a node at a higher time-level)?