Characteristic curve of a fan

Using SimScale
1

Hi there,
how can I set the characteristic curve of a fan, where the pressure drop is plotted against the volume flow rate as a boundary condition for a room?

Kind Regards

2

Hi @LeonardClassen,

Thanks for porting your question!
You can calculate the pressure drop by subtracting the inlet pressure from the outlet pressure using area average plots or directly find the value of 𝛿p under Area Averages > Pressure difference:

1900×819 29.6 KB

Individual pressures can be viewed under Average averages as highlighted.
The figure shows the pressure variation is transient in nature. Calculate the average for these values, for example, from time step 0.6 to 0.8 that completes one wave of transience which gives the pressure drop due to the turbine to be approximately 3.819 𝑀𝑃𝑎.

best,