Numerical study of 3D blading in HP impulse turbines

• Autorzy: Lampart, P. , Gardzilewicz, A.
• Konferencja: International Conference SYMKOM '99. Compressor & Turbine Stage Flow Path Theory, Experiment & User Verification (1999 ; Łódź, Polska)
• Języki publikacji: EN

Abstrakty

EN

One way to improve the performance of turbomachinery is to raise the efficiency of the flow system by means of 3D-shaped blading. The paper describes results of numerical (3D NS) study of straight Jean, compound Jean and compound twist, and their effect on flow characteristics of short-height HP cylindrical stages of impulse turbines. It is assumed that only stator blades are modified, leaving rotor blades cylindrical and endwalls unchanged. The overall effect of the tested designs is to redistribute blade load, reaction and loss span-wise. However, the predicted overall efficiency gains do not exceed 0.4%.

Słowa kluczowe

PL

badania numeryczne; stojan; łopata wirnika

EN

numerical study; stator blade; rotor blade

• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 1999
• Tom: nr 115
• Strony: 297--310
• Opis fizyczny: Bibliogr. 9 poz.

Twórcy

autor

Lampart, P.

• Institute of Fluid Flow Machinery, Polish Academy of Sciences ul. Fiszera 14, 80-952 Gdańsk, Poland,

autor

Gardzilewicz, A.

• Institute of Fluid Flow Machinery, Polish Academy of Sciences ul. Fiszera 14, 80-952 Gdańsk, Poland