[HakikiCanakkaleli]

Hi

== 1 ==

In short, the question is that:

Can specifying different values for "writeInterval" under the controlDict affect the final simulation results or not?

== 2 ==

There are 2 cases which are identical and are run at the same workstations with the same number of parallelized sub-domains. The cases are empty (i.e. no wall inside) rectangular domains wherein there are a circular rotating domain from the inlet to the outlet and the surrounding stationary domain. The inlet velocity is constant, uniform and axial only.

The only difference is the value of writeInterval.

1. Case:

startTime       0;

stopAt          endTime;

endTime         20;

deltaT          1e-5;

writeControl    adjustableRunTime;

writeInterval   1;

2. Case

startTime       0;

stopAt          endTime;

endTime         20;

deltaT          1e-5;

writeControl    adjustableRunTime;

writeInterval   0.01;

== 3 ==

Although the 2. case gives the expected constant axial speed unchanged, in the 1. case the axial velocity does increase/decrease at least 30% at certain regions (mostly inside the rotating domain).

== 4 ==

If solely changing writeInterval's value is said to be impossible to cause this, I will upload all the cases and detail all the required info.

Any help will be highly appreciated.

Many thanks in advance.