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Fig.D-37 Schematic representation of specific energy changes in a diffuser and definition of coefficients used as performance parameters. The expressions with area ratio are to be used with caution - they are derived using the assumption of one-dimensionality, which does not really hold in diffusers - because of changes of velocity profile shape, Fig.D-35. |
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Fig.D-38
Map of the dependence between
geometric parameters and performance parameters for planar diffusers. |
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Vaclav TESAR : "BASIC FLUID MECHANICS"