7. Performance degradation coefficients
Various expressions are used to represent the degradation of pump performance in the presence of two-phase flows. Performance is generally expressed in relation to the single-phase performance assumed to be known.
In this section, results are obtained usingwater andair as constituents of the two-phase mixture.
7.1 Definitions
Visit pressure (or height) decay rate, denoted corresponds to the ratio between the two-phase height coefficients and the nanometric height obtained in the single-phase regime:
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Performance degradation coefficients
Conclusion
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