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I want to confirm the performance of the axial flow fan.

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Old   October 14, 2013, 19:57
Default I want to confirm the performance of the axial flow fan.
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Korean Pie
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I want to confirm the performance of the axial flow fan.

CFD calculation reference conditions of the axial fan.

Air, 20 [˚c] - 1.2 [kg/m^3]
Mass Flow = 16 [kg/s]
Static Pressure = 540 [Pa]
RPM = 1180 rpm = 123.569311 [rad/s]

In the case of Ansys Cfx program,

Inlet Lid = Total pressure - 0 [pa]
Outlet Lid = Mass Flow - 16 [kg/s]

However, in the case of a program of Floworks,

Inlet Lid = Mass Flow - 16 [kg/s]
Out Lid = Static Pressure - 540 [Pa]

Ansys program, satisfied with the results.

Floworks program are dissatisfied with the result.

Floworks conditions set, Is my mistake?

To answer please.
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Old   October 29, 2013, 04:22
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Boris Marovic
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I'm not quite sure I understood you correctly.
Is that the fan data in the engineering database? I hope there is more data of the mass flow rate for the fan to have a real fan curve that is depending on the pressure difference between the inlet and outlet of the fan. At the moment you have 16kg/s constant with some swirl, at least from what you wrote.

Also are you sure it is 540Pa? Is this a vacuum pump or a default fan such as for electronics cooling?

Other than that I cannot help you as there is too little information on what it not working right or what the error is that you see.

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