1 Fanpar Project data Title: Porting and demonstration of a parallel software for enhanced aerodynamic and acoustic design of axial and centrifugal fans.

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1 Fanpar Project data Title: Porting and demonstration of a parallel software for enhanced aerodynamic and acoustic design of axial and centrifugal fans (FANPAR) Project type: ESPRIT project of the EU, within the METIER-CEPBA-TTN Reference: Esprit Period: 01/03/ /09/1998 Collaborators: Guillaume Houzeaux

2 Objectives To model rotating flows around fans To reproduce the pressure-flow rate curve To account for fixed and moving regions

3 Key numerical ingredients Stabilized finite element approximation of the incompressible Navier-Stokes equations Treatment of dominant rotation Domain decomposition between fixed and moving subdomains

4 Results I

5 Results II

6 Results III

7 Results IV Pressure Trajectories Velocity vectors