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Author Topic: Differences between Quadratic and ramp defined Fans  (Read 1428 times)


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Differences between Quadratic and ramp defined Fans
« on: December 10, 2015, 06:39:07 am »


I have some doubts about the way in which fan curves are entered to Pyrosim.
Recently, I tried to simulate a real fan (I've the real curve), and I tried by means of adjusting the Quadratic curve, and also by means of entering the real curve in a discrete way.

The problem is that results are really different depending on which way the fan is modelled. Quadratic curve appears to work properly, whereas real curve gives about half of the airflow.

Does anyone know about this problem? May it be a specific problem, or may it be more general?

Thanks in advance.