Centrifugal Pump block of SimHydraulics, how can I compute the coefficients for the pressure?

I use the Centrifugal Pump block of SimHydraulics and I have the curve of pressure of the pump, that it is a second order equation. But now how I can compute the pressure for setting the block? p = rho_ref * ( k*(c_0-c_1*q) - c_2*q^2 - c_3*(q_D - q)^2 )

I have to compute the coefficient c_0, c_1, c_2 and c_3. thanks in advance

Answer 1

[noman shah]

look for MATLAB help on the pump and then go for the reference of the equation for that pump, otherwise use table specified values of flow vs pressure difference (rho*g*head) and flow vs brake power