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Compound angle film cooling effectiveness with those two effects was investigated using PSP technology.
Streamwise pressure gradient and surface curvature are two important characteristics of turbine flow and compound angle film cooling is an efficient way to improve cooling performance.
It is observed that the anti-kidney vortexes produced in double-jet film cooling system are controlled by the pitch and compound angle of the two holes.
The film cooling effectiveness of the compound angle film hole is sensitive to not only the swirling strength but also the swirling direction.
This paper investigates effects of geometrical and coolant flow parameters for a three-row compound angle hole design over a flat plate.
A numerical study on effects of swirling coolant on film cooling performance is conducted for cylindrical, clover shaped and compound angle holes on a gas turbine endwall model.
Similar(29)
"It is all compound angles," said Thomas G. Evans, project engineer for the Turner Construction Company, the construction manager.
The film cooling performance of the hybrid scheme with outlet configurations of trapezoid, elliptical (with two compound angles of 0° and 90°), rectangle and square are analyzed and compared with cylindrical film hole at blowing ratio of 0.5 and 1 for 0.94 density ratio.
The lumber will act as a guide fence, ensuring that the molding sits in the correct position and allowing you to cut compound angles in one cut.
In this paper, the chemically reactive turbulent film cooling over a surface for three cases of an inclined single and two parallel and compound-angle coolant holes is investigated by a Reynolds-averaged Navier Stokes approach with the shear-stress transport (SST) turbulence model using OpenFoam.
(This non-parallelism is a consequence of the compound incidence angles with which a beam of finite NA intercepts a tilted coating).
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