[ajayjatoliya]

Is this formulation include all the velocities?

[valgrinda]

Yes, it calculates the absolute velocity at the bed.

[ajayjatoliya]

Thank you sir

[ajayjatoliya]

Sir, could you once explain for what this parameter stands for in D 30

off
PJM
PJM FSM
PJM CORR

Which one is the SIMPLE method, and which one is the projection method as per Chorin(1968)

if suppose I want to opt for D 30 1, then do i need to opt for D 20 1.

Thank you sir

[valgrinda]

Hi Ajay,

none of them is the SIMPLE method as all of our time discretization methods are explicit (or at least semi-explicit). You should go with D 30 1 and D 20 2. D 20 2 will treat diffusion implicitly, so it avoids the time step penalty.

[ajayjatoliya]

Thank you, sir

[ajayjatoliya]

Sir, could you please once explain, what is the basis for choosing S 14? or how should we choose S 14 parameters

[valgrinda]

Just go with the default of 0.3. It is the safety factor for the Courant number of the bed level changes (i..e the bed should not move more than 0.3*dx per time step).

[ajayjatoliya]

Sir, i am using CFL = 0.2

[valgrinda]

Should be fine.