Linked S2 and S1 design with experimental and CFD verification

• Autorzy: Waggott J. , Maier W.
• Konferencja: International Conference SYMKOM '99. Compressor & Turbine Stage Flow Path Theory, Experiment & User Verification (1999 ; Łódź, Polska)
• Języki publikacji: EN

Abstrakty

EN

A precise method of deriving advantageous meridional (S2) flowpath shapes is presented. This design method eliminates radial, or "potential surface" pressure gradients, refines secondary flow, and improves efficiency. The derivation is based on two-dimensional (S1) airfoil or vane shapes and can be applied to most types of turbomachinery. The elimination of radial pressure gradients in high specific speed machines allows the use of airfoils or vanes with less hub to shroud variation. Both CFD calculations and experimental results show that aerodynamic improvements extend far beyond flowpath regions where this design technique is applied.

Słowa kluczowe

EN

high speed machine tools; radial; pressure; pressure gradient

PL

obrabiarki wysokiej dokładności; ciśnienie; gradient ciśnienia

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 1999
• Tom: nr 115
• Strony: 405--412

Twórcy

autor

Waggott J.

• Dresser-Rand Co. Wellsville, NY 14895 USA

autor

Maier W.

• Dresser-Rand Co. Wellsville, NY 14895 USA