START

START

1. selection of parameters

   • Determining the quasiorthogonal, s
     • Mesh generation and determining the initial meridian flow net
       • Solving the meridional velocity gradient equation of gas liquid two phase
         • Flow balance
           • satisfied
             • Drawing impeller blades
               • Blades thickened
                 • END
       • - inlet condition - outlet condition - interface boundary condition - wall boundary condition
     • introduced to avoid derivation of wetted perimeter
   • -axial profile of blade - calculation of blade mean camber line - shape surface of blade

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