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48 Fluid Mechanics, Thermodynamics of Turbomachinery






























                          FIG. 2.15. Flow regime chart for two-dimensional diffusers (adapted from Sovran and
                                                       Klomp 1967).

                              1.0
                                                                     C pi

                              0.8
                                                   2
                                                                  h D
                                                           C
                              0.6                           p
                                         1


                              0.4
                                                                          3


                                                       w
                              0.2


                                0
                                               10           20             30           40
                                                                 2Q (deg)
                          FIG. 2.16. Typical diffuser performance curves for a two-dimensional diffuser, with
                                           L/W 1 D 8.0 (adapted from Kline et al. 1959).
   62   63   64   65   66   67   68   69   70   71   72