The most general Pump model is given as (see Fig. 1):
p_{\rm out}= p_{\rm in} + F(q, p_{\rm in}) |
where is called pump characteristic curve.
In most practical cases pump characteristic curve has negligible dependence on intake pressure :
p_{\rm out} = p_{\rm in} + \delta p_{\rm max} \cdot \cdot F(q/q_{\rm max}) |
where and
.
The pump characteristic curve can be usually approximated by the following equation:
F(x)= 1 - (1- x^m)^n |
and usually and
:
.
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| Fig. 1. Pump Characteristic Curve |
Natural Science / Engineering / Device / Pump
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