The most general Pump model is given as (see Fig. 1):
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p_{\rm out}= p_{\rm in} + F(q, p_{\rm in}) |
where
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body | --uriencoded--F(q, p_%7B\rm in%7D) |
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is called pump characteristic curve.
In most practical cases pump characteristic curve has negligible dependence on intake pressure
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body | --uriencoded--p_%7B\rm in%7D |
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:
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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:
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F(x)= 1 - (1- x^m)^n |
and usually
and
:
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body | --uriencoded--F(x)= 1- \sqrt%7B1- x%7D |
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.
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Fig. 1. Pump Characteristic Curve |
See also
Natural Science / Engineering / Device / Pump
References