Effect of Controlled Surface Roughness on Boundary-layer Transition and Heat Transfer at Mach Numbers of 4.8 and 6.0

Effect of Controlled Surface Roughness on Boundary-layer Transition and Heat Transfer at Mach Numbers of 4.8 and 6.0 PDF Author: Paul F. Holloway
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 54

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Effect of Controlled Surface Roughness on Boundary-layer Transition and Heat Transfer at Mach Numbers of 4.8 and 6.0

Effect of Controlled Surface Roughness on Boundary-layer Transition and Heat Transfer at Mach Numbers of 4.8 and 6.0 PDF Author: Paul F. Holloway
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 54

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NASA Scientific and Technical Reports

NASA Scientific and Technical Reports PDF Author: United States. National Aeronautics and Space Administration Scientific and Technical Information Division
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ISBN:
Category : Aeronautics
Languages : en
Pages : 1152

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Preliminary Investigation of the Effects of Heat Transfer on Boundary-layer Transition on a Parabolic Body of Revolution (NACA RM-10) at a Mach Number of 1.61

Preliminary Investigation of the Effects of Heat Transfer on Boundary-layer Transition on a Parabolic Body of Revolution (NACA RM-10) at a Mach Number of 1.61 PDF Author: K. R. Czarnecki
Publisher:
ISBN:
Category : Body of revolution
Languages : en
Pages : 30

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The Effect of Centrifugal Forces on Boundary Layer Transition for a Highly Heated Body

The Effect of Centrifugal Forces on Boundary Layer Transition for a Highly Heated Body PDF Author: Eugene Sevigny
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 50

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Local Aerodynamic Heat Transfer and Boundary-layer Transition on Roughened Sphere-ellipsoid Bodies at Mach Number 3.0

Local Aerodynamic Heat Transfer and Boundary-layer Transition on Roughened Sphere-ellipsoid Bodies at Mach Number 3.0 PDF Author: William D. Deveikis
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 30

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Effect of Roughness on Heat Transfer to Hemisphere Cylinders at Mach Numbers 10.4 and 11.4

Effect of Roughness on Heat Transfer to Hemisphere Cylinders at Mach Numbers 10.4 and 11.4 PDF Author: James C. Dunavant
Publisher:
ISBN:
Category : Aerodynamic heating
Languages : en
Pages : 44

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Preliminary Results from a Free-flight Investigation of Boundary-layer Transition and Heat Transfer on a Highly Polished 8-inch-diameter Hemisphere-cylinder at Mach Numbers Up to 3 and Reynolds Numbers Based on a Length of 1 Foot Up to 17.7 X 106

Preliminary Results from a Free-flight Investigation of Boundary-layer Transition and Heat Transfer on a Highly Polished 8-inch-diameter Hemisphere-cylinder at Mach Numbers Up to 3 and Reynolds Numbers Based on a Length of 1 Foot Up to 17.7 X 106 PDF Author: James R. Hall
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 34

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Simplified Method for Determination of Critical Height of Distributed Roughness for Boundary-layer Transition at Mach Numbers from 0 to 5

Simplified Method for Determination of Critical Height of Distributed Roughness for Boundary-layer Transition at Mach Numbers from 0 to 5 PDF Author: Albert L. Braslow
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 624

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The method has been applied to various types of configurations in several wind-tunnel investigations conducted by the National Advisory Committee for Aeronautics at Mach numbers up to 4, and in all cases the calculated roughness height caused premature boundary-layer transition for the range of test conditions.

Review of the Effect of Distributed Surface Roughness on Boundary-layer Transition

Review of the Effect of Distributed Surface Roughness on Boundary-layer Transition PDF Author: A. L. Braslow
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 13

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A discussion is presented on the transition phenomena associated with distributed roughness, a correlation of three-dimensional roughness effects at both subsonic and supersonic speeds, and the effect of laminar boundary-layer stability as influenced by heat transfer, pressure gradients, and boundary-layer control on the sensitivity of laminar flow to distributed roughness. Results indicate that the transition-triggering mechanism of three-dimensionaltype surface roughness appears to be the same at supersonic and subsonic speeds. In either case, a Reynolds number based on the height of the roughness and the local flow conditions at the top of the roughness can be used to predict with reasonable accuracy the height of threedimensional roughness required to cause premature transition. Neither the three-dimensional roughness Reynolds number nor the lateral spread of turbulence behind the roughness is changed to any important extent by increasing the laminar boundary-layer stability to theoretically small disturbances. Therefore, for a given stream Mach number and Reynolds number, surface cooling, boundary-layer suction, or a favorable pressure gradient will, in the presence of three-dimensional roughness, promote rather than delay transition. (Author).

Roughness Effects on Boundary-layer Transition for Blunt-leading-edge Plates at Mach 6

Roughness Effects on Boundary-layer Transition for Blunt-leading-edge Plates at Mach 6 PDF Author: Paul F. Holloway
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 52

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