Method of Characteristics for Design of Centrifugal Pump Geometry

• Autorzy: Puzyrewski R. , Zochowski K. , Flaszyński P.
• Języki publikacji: EN

Abstrakty

EN

The method of characteristics leads to the blade geometry of a centrifugal pump. The method is built taking the advantage of the governing equations of fluid mechanics written in a non-orthogonal coordinates system. The coordinate system is based on an analytically described boundary of a centrifugal pump. Some of the information concerning the designed geometry should be introduced in advance. The mass conservation equation needs the information of the blockage factor resulting from the blading thickness. In the momentum conservation equation the body force replaces the blading force together with the friction force. In the energy conservation equation the dissipation effects are represented by a loss coefficient. It is shown that while simplifying the body force vector, the set of equations reduces to a hyperbolic system which allows applying the method of characteristics. The shapes of surfaces representing the designed blading can be built from the trajectories of fluid particles.

Słowa kluczowe

EN

pumps; inverse problem; method of characteristics

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2010
• Tom: Vol. 14, No 3
• Strony: 249--256
• Opis fizyczny: Bibliogr. 3 poz., rys., tab.

Twórcy

autor

Puzyrewski R.

autor

Zochowski K.

autor

Flaszyński P.

• Turbomachinery and Fluid Mechanics Department, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland,

Bibliografia

• [1] Lorenz H 1905 Zeitschrift des Vereines Deutscher Ingenieure 49 (41) 1610
• [2] Puzyrewski R 2005 Two Dimensional Inverse Method of Turbomachinery Stage Design, Developments in Mechanical Engineering, Gdansk University of Technology Publishing, pp. 57–72 (ISBN 83-7348-113-3)
• [3] Banaszek M and Tesch T 2010 Proc. 2 nd Int. Conf. on Engineering Optimization (EngOpt 2010), Lisbona, Portugal (on CD)