Structured surfaces for turbo-machine parts

Details Structured surfaces for turbo-machine parts Structured surfaces for turbo-machine parts

1997-04-30

1998-12-08

Kwon, John T.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing having tangential inlet or outlet

415914, 416236R, F04D 2944

Patent

active

058460551

ABSTRACT:
A turbo-machine comprises a housing. The housing has internal surfaces which come into contact with fluid flowing through the turbo-machine. The surfaces have an ordered, fine, sharp-edged groove structure that is affixed to the surfaces, such that the groove structure extends predominantly in the flow direction.

REFERENCES:
patent: 2864552 (1958-12-01), Anderson
patent: 2990107 (1961-06-01), Edwards
patent: 3481531 (1969-12-01), MacArthur
patent: 4720239 (1988-01-01), Owczarek
patent: 5215439 (1993-06-01), Jensen
Encyclopedia of Physics, vol. XII, Thermodynamics of Gases, Published by Springer Verlag, Berlin, Gottingen, Heidelberg, 1958, pp. 562 and 563 (includes an English language translation).
Walsh, M.J.: Turbulent Boundary Layer Drag Reduction Using Riblets, AIAA-Paper 82-0169, 1982, S.1-8.
Walsh, M.J.: Lindemann, A.M.: Optimization and Application of Riblets for Turbulent Drag Reduction, AIAA-Paper 84-0347, 1984, S.1-10.
Private Industral document Dated Nov. 30, 1877 vol. 19, N 275 (Italy).

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