Download or read book Use of Barotoni Libby Transformation and Preston Tube Calibrations to Determine Skin Friction from Turbulent Velocity Profiles written by Jerry Allen and published by . This book was released on 1968 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Use of Preston Tubes for Measuring Hypersonic Turbulent Skin Friction written by Earl R. Keener and published by . This book was released on 1969 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Use of Preston tubes for measuring hypersonic turbulent skin friction.

Download or read book Skin friction Measurements in Incompressible Flow written by Donald W. Smith and published by . This book was released on 1959 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiment have been conducted to measure the local surface-shear stress and the average skin-friction coefficient in incompressible flow for a turbulent boundary layer on a smooth flat plate having zero pressure gradient. Data were obtained for a range of Reynolds numbers from 1 million to 45 million. The local surface-shear stress was measured by a floating-element skin-friction balance and also by a calibrated total head tube located on the surface of the test wall. The average skin-friction coefficient was obtained from boundary-layer velocity profiles.

Download or read book Evaluation of Compressible flow Preston Tube Calibrations written by Jerry M. Allen and published by . This book was released on 1973 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book In flight Capability for Evaluating Skin friction Gages and Other Near wall Flow Sensors written by Trong T. Bui and published by . This book was released on 2003 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Velocity Profiles and Skin Friction on a Ribletted Flat Plate in Adverse Pressure Gradient written by Richard D. Branam and published by . This book was released on 1997-12-01 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project investigated the flow field characteristics over a flat, ribletted plate and the effects of an adverse pressure gradient on this flow field. Testing examined the development of the flow over the ribletted plate from laminar through fully turbulent flow fields. The flow field states (laminar, transitional, and turbulent) were determined using local turbulence intensity values and boundary layer profiles. Several parameters were examined to help better describe the flow characteristics, boundary layer profiles, and influence on skin friction drag. The skin friction drag coefficients were calculated using a numerical integration technique to determine an average value and scaled to the platform area of the plate to compare results with smooth plate values. Although the geometry and flow conditions produced a drag augmenting case, skin friction followed trends described by the other flow parameters; streamwise velocity, Reynolds stress, etc. At locations where the boundary layer developed in the riblet valley, the skin friction was higher. As the flow developed to transitional and fully turbulent, higher values were also experienced. For the zero pressure gradient and mild adverse pressure gradient, counter rotating vortices developed in the riblet valley. This more organized motion also had slightly reduced skin friction below the transitional flow field for the plate as well.

Download or read book High accuracy determination of skin friction differences in an air channel flow based on pressure drop measurements written by Güttler, Andreas and published by KIT Scientific Publishing. This book was released on 2017-04-13 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reactive Control of Turbulent Wall Bounded Flows for Skin Friction Drag Reduction written by Stroh, Alexander and published by KIT Scientific Publishing. This book was released on 2019-01-04 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Viscous Drag Reduction in Boundary Layers written by and published by AIAA. This book was released on 1990 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Compressible Turbulent Skin Friction on Rough and Rough wavy Walls in Adiabatic Flow written by Daniel C. Reda and published by . This book was released on 1974 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental program was conducted to investigate effects of roughness, and roughness superimposed on single and/or multiple, shallow, periodic waveforms, on turbulent boundary-layer skin friction and velocity profile, in compressible, adiabatic flow. Test conditions were Mach number = 2.9 and Reynolds number/ft = 2 million to 8 million. The planar models included smooth, sand-grain, machined and molded surface finishes. Direct measurements of surface shear and Pitot/recovery temperature profiles were obtained. (Modified author abstract).

Download or read book Reevaluation of Compressible flow Preston Tube Calibrations written by Jerry M. Allen and published by . This book was released on 1977 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reevaluation of Compressible Flow Preston Tube Calibrations written by National Aeronautics and Space Administration NASA and published by . This book was released on 2018-09 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Revised zero-pressure-gradient, adiabatic wall skin-friction-balance data covering a Mach number range from 1.6 to 4.6 led to a reevaluation of existing compressible flow Preston tube calibration equations. Allen, J. M. Langley Research Center NASA-TM-X-3488, L-11189 RTOP 505-11-15-02

Download or read book Reevaluation of Compressible Flow Preston Tube Calibrations written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-20 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Revised zero-pressure-gradient, adiabatic wall skin-friction-balance data covering a Mach number range from 1.6 to 4.6 led to a reevaluation of existing compressible flow Preston tube calibration equations. Allen, J. M. Langley Research Center NASA-TM-X-3488, L-11189 RTOP 505-11-15-02