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Book Experimental Investigation of Boundary Layer Flow Transition Over a Flat Plate

Download or read book Experimental Investigation of Boundary Layer Flow Transition Over a Flat Plate written by William John Gander and published by . This book was released on 1938 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Experimental Investigation of Boundary Layer Transition on a Flat Plate with a Point Heat Source at the Leading Edge

Download or read book Experimental Investigation of Boundary Layer Transition on a Flat Plate with a Point Heat Source at the Leading Edge written by W. J. McCroskey and published by . This book was released on 1962 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The addition of heat to the boundary layer of an insulated flat plate by means of a point heat source at the leading edge has been found to delay the transition of laminar flow to turbulence. This paper describes an experimental investigation of the variation of transition Reynolds number on a roughened flat plate model with a heat source of strength, Q, spanning the leading edge. The present problem is compared with the problem of an aerodynamically heated boundary layer on an insulated flat plate. Transition Reynolds number was found to increase with increasing S over a range equivalent to a Mach number variation of 0

Book An Experimental Investigation of the Boundary Layer Flow on a Rotating Flat Plate

Download or read book An Experimental Investigation of the Boundary Layer Flow on a Rotating Flat Plate written by Jerome Persh and published by . This book was released on 1958 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book An Experimental Investigation of the Effect of Surface Heating on Boundary layer Transition on a Flat Plate in Supersonic Flow

Download or read book An Experimental Investigation of the Effect of Surface Heating on Boundary layer Transition on a Flat Plate in Supersonic Flow written by Robert W. Higgins and published by . This book was released on 1951 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boundary-layer transition has been studied on a heated flat plate in an air stream at a Mach number of 2.40 and a length Reynolds number range from 475,000 to 3,930,000. The transition region was investigated at nominal plate temperature levels of 60, 100, 140, 180, and 260 degrees F and depicted in a series of curves of transition Reynolds numbers, based on boundary-layer dimensions and fluid properties evaluated alternatively at free-stream and wall temperatures. The average skin-friction coefficient over the laminar portion of the boundary layer was determined.

Book An Experimental Investigation of Heat Transfer in the Turbulent Boundary Layer on a Flat Plate Design of Apparatus

Download or read book An Experimental Investigation of Heat Transfer in the Turbulent Boundary Layer on a Flat Plate Design of Apparatus written by Hugh Maxwell Satterlee and published by . This book was released on 1955 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book An Experimental Investigation of the Influence of Pressure Gradient and Free Stream Turbulence on Transition in the Boundary Layer on a Flat Plate

Download or read book An Experimental Investigation of the Influence of Pressure Gradient and Free Stream Turbulence on Transition in the Boundary Layer on a Flat Plate written by Grant Keir and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Computational and Experimental Investigation of Transition Control in Boundary Layers  Receptivity of a Flat Plate Boundary Layer to Free Stream Pressure Waves

Download or read book Computational and Experimental Investigation of Transition Control in Boundary Layers Receptivity of a Flat Plate Boundary Layer to Free Stream Pressure Waves written by and published by . This book was released on 1995 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: A numerical simulation of a receptivity experiment by Kendall was performed, solving the 2-D, incompressible Navier-Stokes equations for a flat plate boundary layer. Emphasis was placed on the investigation of the mechanism that lead to the shift of energy from low frequencies to higher frequencies and to the different output/input ratios for different cylinder diameters in the experiment. The rotating cylinders that were used in the experiment to generate disturbances in the freestream were modeled by a numerical forcing function at the freestream boundary. It was found that the low frequency components of the induced disturbances, together with the steady flow, form a new, transient baseflow for disturbances with higher frequencies. It was demonstrated how the changing receptivity and stability characteristics of this baseflow lead to distinct peaks in the wavepackets that are generated by the freestream disturbance. Further investigation showed that the different output/input ratios can essentially be explained by the different amplitudes of the lowest frequencies in the forcing. Finally, a numerical experiment was performed with only two frequency components present in the forcing function. The validity of the proposed mechanism was confirmed by comparison of the results of this numerical experiment with those calculated from linear stability theory for the transient baseflow. (AN).

Book Recent Results in Laminar Turbulent Transition

Download or read book Recent Results in Laminar Turbulent Transition written by Siegfried Wagner and published by Springer Science & Business Media. This book was released on 2004 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methodic investigations of laminar-turbulent transition in wall-bounded she ar flows under controlled conditions are essential for untangling the various complex phenomena of the transition process occurring in flows at practical conditions. They allow understanding of the instability processes of the la minar flow, and thus enable the development of tools for flow control. On the one hand the laminar flow regime can be extended by delaying transition to reduce viscous drag, and on the other hand large-scale flow disturbances or transition can be forced in order to enhance momentum and mass ex change. Thus flow separation can be prevented, or mixing of fuel and air in combustion engines enhanced, for instance. The "DFG Verbund-Schwerpunktprogramm Transition" - a cooperative priority research program of universities, research establishments and indu stry in Germany - has been launched in April 1996 with the aim to explore transition by a coordinated use, development and validation of advanced experimental techniques and theoretical/numerical simulation methods, bin ding together all the appropriate resources available in Germany. At the very beginning of the six-year research period specifically selected test problems were to be investigated by various theoretical and experimental methods to identify and possibly rule out inadequate numerical or experimental methods. With respect to experiments it was planned to use multi-sensor-surface measuring techniques, the infrared measuring technique, and particle image velocimetry (PlV) in addition to hot-wire techniques to get instantaneous images of flows in sections, on surfaces, or within the complete flow field.

Book An Experimental Investigation of Three dimensional Boundary Layer Separation in Supersonic Flow Past a Circular Cylinder on a Flat Plate

Download or read book An Experimental Investigation of Three dimensional Boundary Layer Separation in Supersonic Flow Past a Circular Cylinder on a Flat Plate written by Oktay Ozcan and published by . This book was released on 1982 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book An Experimental Study of Boundary Layer Transition

Download or read book An Experimental Study of Boundary Layer Transition written by Henry William Bennett and published by . This book was released on 1953 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book About Transition of a Laminar Boundary Layer Into a Turbulent One at Jet Flowing Around a Plate

Download or read book About Transition of a Laminar Boundary Layer Into a Turbulent One at Jet Flowing Around a Plate written by L. A. Vulis and published by . This book was released on 1963 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results are discussed of experimental investigation of the flow of flat stream of water or air along a plate. Transition of a laminar boundary layer into a turbulent one in a well developed turbulent flow in the external part of the stream was observed. (Author).