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Issue with runTime.setDeltaT

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Old   December 30, 2020, 16:05
Default Issue with runTime.setDeltaT
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Saumava Dey
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I have written my own setDeltaT.H as per my requirements. A part of it looks like this:

if (adjustTimeStep)

else if ((Pic_cur < Pic_min) && (Pic_stb == Pic_stb_max))
runTime.setDeltaT(min(Ft*runTime.deltaTValue(), maxDeltaT));
Pic_stb = 0;

Info << "deltaT = " << runTime.deltaTValue() << endl;

When I am executing the code, the "deltaT" is set to an erroneous value.

Suppose the initial deltaT is 1000; Ft is 1.25 and maxDeltaT is 3600.
Then the new deltaT should be set to 1250. Instead, is it being set to 200.

Observation through multiple execution of the code shows the new deltaT is set to 1/5th of the old value everytime.

I cannot figure out why is this happening. Can anyone point out where am I going wrong?
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deltat, runtime

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