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Chapter


                                                                                       12







                                                                 Compressible



                                                               Flow Analysis




                                            Compressible flow occurs in many applications such as
                                 flow in turbine engines, flow over supersonic aircrafts and rockets.
                                 The  flow  behaviors  consist  of  shock  wave,  expansion  wave  and
                                 shock-shock interaction phenomena.  These phenomena are com-
                                 plicated and difficult to predict by numerical methods in the past.
                                 Fluent  in  ANSYS  contains  analysis  capability  that  can  provide
                                 solutions representing such complicated phenomena effectively.
                                            In  this  chapter,  we  begin  with  the  conservative  equa-
                                 tions of the compressible flow.  Theoretical background of the cell-
                                 centered  method  for  compressible  flow  analysis  is  presented.
                                 Capability  of  Fluent  is  demonstrated  by  analyzing  academic  pro-
                                 blems that have analytical solutions.  Application example is also
                                 presented to highlight complicated compressible flow behaviors.
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