@incollection{, FE20914103B1BD3437DB85CC5708090A , author={{Ahmed Farid AyadHassan} and {Military Technical College}}, journal={{Global Journal of Researches in Engineering}}, journal={{GJRE}}2249-45960975-586110.34257/gjre, address={Cambridge, United States}, publisher={Global Journals Organisation}1642943 } @book{b0, , title={{}} , author={{ JFGülich }} , year={2010} , publisher={Springer} } @incollection{b1, , title={{Experiments on impeller trimming of a commercial centrifugal oil pump}} , author={{ LWen-Guang }} , booktitle={{presented at the International Conference on Hydraulic Machinery and Hydrodynamics}} , year={2004} } @incollection{b2, , title={{Impeller trimming of an Industrial Centrifugal Viscous Oil Pump}} , author={{ WGLi }} , journal={{International Journal of Advanced Design and Manufacturing Technology}} 5 , year={2012} } @incollection{b3, , title={{Improving centrifugal pump efficiency by impeller trimming}} , author={{ M?avar } and { HKozmar } and { ISutlovi }} , journal={{Desalination}} 249 , year={2009} } @incollection{b4, , title={{Influence of splitter blades on the flow field of a centrifugal pump: test-analysis comparison}} , author={{ GKergourlay } and { MYounsi } and { FBakir } and { RRey }} , journal={{International Journal of Rotating Machinery}} , year={2007. 2007} } @incollection{b5, , title={{Numerical simulation of flow in centrifugal pump with complex impeller}} , author={{ BCui } and { YLin } and { Y.-ZJin }} , journal={{Journal of Thermal Science}} 20 , year={2011} } @incollection{b6, , title={{Research on the Design Method of the Centrifugal Pump with Splitter Blades}} , author={{ SYuan } and { JZhang } and { YTang } and { JYuan } and { YFu }} , booktitle={{Proceedings of the ASME 2009 Fluids Engineering Division Summer Meeting}} the ASME 2009 Fluids Engineering Division Summer Meeting , year={2009} } @incollection{b7, , title={{Blade Exit Angle Effects on Performance of a Standard Industrial Centrifugal Oil Pump}} , author={{ LWen-Guang }} , journal={{Journal of Applied Fluid Mechanics}} 4 , year={2011} } @incollection{b8, , title={{Effect of exit blade angle, viscosity and roughness in centrifugal pumps investigated by CFD computation}} , author={{ WLi }} , journal={{Task quarterly}} 15 , year={2011} } @incollection{b9, , title={{Effect of Impeller Blade Exit Angle on the Performance of Centrifugal Pump}} , author={{ MPatel } and { ADoshi }} , journal={{Intrnational Journal of Emerging Technology and Advanced Engineering}} 3 , year={2013} } @incollection{b10, , title={{Parametric study of a centrifugal pump impeller by varying the outlet blade angle}} , author={{ EBacharoudis } and { AFilios } and { MMentzos } and { DMargaris }} , journal={{Open Mechanical Engineering Journal}} 2 , year={2008} } @incollection{b11, , title={{Studies on the Influence of Various Blade Outlet Angles in a Centrifugal Pump when Handling Viscous Fluids}} , author={{ MH SFard } and { FBoyaghchi }} , journal={{American Journal of Applied Sciences}} 4 , year={2007} } @incollection{b12, , title={{Numerical Analysis on Effects of Blade Number Variations on Performance of Centrifugal Pumps with Various Rotational Speeds}} , author={{ SChakraborty } and { KPandey } and { BRoy }} , journal={{International Journal of Current Engineering and Technology}} 2 , year={2012} } @incollection{b13, , title={{Effects of blade number on characteristics of centrifugal pumps}} , author={{ HLiu } and { YWang } and { SYuan } and { MTan } and { KWang }} , journal={{Chinese Journal of Mechanical Engineering}} 23 , year={2010} } @incollection{b14, , title={{The effect of blades number and shape on the operating characteristics of groundwater centrifugal pumps}} , author={{ KRababa }} , journal={{European Journal of Scientific Research}} 52 , year={2011} } @incollection{b15, , title={{Effects of blade outlet width on flow field and characteristic of centrifugal pumps}} , author={{ MTan } and { HLiu } and { SYuan } and { YWang } and { 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