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All about the PIMPLE algorithm - Part II

Posted October 21, 2014 at 17:55 by Tobi
Updated September 28, 2016 at 05:04 by Tobi (Some errors and mistakes)

## Case 3.1 ##

Now we will use the following fvSolution file:
Code:
PIMPLE
{
    nCorrectors            1;
    nOuterCorrectors    2;
}
Compared to Case 2 there is not a big difference. The only difference is that we calculate the pressure - momentum coupling in one time step twice:
  1. Calculate momentum
  2. Calculate pressure
  3. Recalculate momentum from new pressure
  4. Recalculate pressure from new momentum
Calculation in OpenFOAM is like:...
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Old

All about the PIMPLE algorithm - Part I

Posted October 21, 2014 at 17:54 by Tobi
Updated October 3, 2016 at 17:27 by Tobi

#### New explanation (03.10.16) ####
If you are interested in the PIMPLE algorithm and need some reference, you can check out my book which is now extended by 23 new pages, where I explain the PIMPLE algorithm like I do here.


#### Storyboard ####


First I wanted to write a nice story like »Ignaz« but that would only copy the good attention of the author and of course I am not a good story-teller. Therefore I will go directly to the topic and will tell you how...
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Old

useful udf ! thanks to macfly

Posted October 21, 2014 at 17:33 by diamondx

#include "udf.h"
real T_mean; /* defined outside because will be used in multiple DEFINE macros */

DEFINE_ADJUST(adjust, domain, t)
{
real T_tot;
real u;
real counter = 0;

face_t f;
int ID = 20; /* outlet ID displayed in Fluent boundary conditions panel */
Thread *thread;
thread = Lookup_Thread(domain, ID);
begin_f_loop(f, thread)
{
u = F_U(f, thread); /* x velocity...
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Old

Prism layers at airfoil using shappyHexMesh

Posted October 20, 2014 at 05:58 by skeptik (CFD notes)

Hard work with stupid snappyHexMeshDict bruteforcing and i have a result

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2 blade model NACA23015

Posted October 1, 2014 at 05:49 by skeptik (CFD notes)

Seems to be true,
My polyMesh test.

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