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The Effects Of Sweep And Bluntness On A Glancing Shock Wave Turbulent Boundary Layer Interaction
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Book Synopsis The Effects of Sweep and Bluntness on a Glancing Shock Wave Turbulent Boundary Layer Interaction by : N. R. Fomison
Download or read book The Effects of Sweep and Bluntness on a Glancing Shock Wave Turbulent Boundary Layer Interaction written by N. R. Fomison and published by . This book was released on 1987 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted into the effects of leading edge sweep and bluntness on the flow characteristics of a glancing shock wave turbulent boundary layer interaction generated by a fin-on-plate configuration. A series of sharp swept fins (covering angles of sweep from 0 to 75 deg) and a series of blunt unswept fins (ranging in leading edge diameter from 0 to 25.4 mm) were tested at incidences of up to 30 deg at a Mach number of 2.4 and a freestream Reynolds number of 2.6 million/m. Observations of the mean flow were made using oil flow visualization, static pressure measurements, schlieren photography and vapour screen visualization techniques. In addition, some limited measurements of the unsteady static pressures beneath the interaction were taken. Flow field models are proposed to include the effects of sweep and bluntness and the governing parameters controlling the extent of the distributed flow and the pressure levels beneath the interaction are examined.
Book Synopsis The Effects of Bluntness and Sweep on Glancing Shock Wave Turbulent Boundary Layer Interaction by : N. R. Fomison
Download or read book The Effects of Bluntness and Sweep on Glancing Shock Wave Turbulent Boundary Layer Interaction written by N. R. Fomison and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of the Interaction Between a Glancing Shock Wave and a Turbulent Boundary Layer by : A. Hussain
Download or read book A Study of the Interaction Between a Glancing Shock Wave and a Turbulent Boundary Layer written by A. Hussain and published by . This book was released on 1985 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theoretical Investigation of 3-D Shock Wave-Turbulent Boundary Layer Interactions by : Doyle D. Knight
Download or read book Theoretical Investigation of 3-D Shock Wave-Turbulent Boundary Layer Interactions written by Doyle D. Knight and published by . This book was released on 1988 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research concerns the understanding of 3-D shock wave-turbulent boundary layer interactions. The research activity has focused on several areas. First, the 3-D swept compression corner has been computed at Mach 3 for a sweep angle of 40 deg and compression angle of 24 deg. The calculated flows are in good agreement with experiment. Second, the flowfield structure of the 3-D swept compression corner is dominated by a large vortical structure. Third, the interaction has been found quantitatively to be dominated by inviscid effects except within a small fraction of the boundary layer. Fourth, the effect of boundary layer bleed has been examined for the 3-D shock wave-turbulent boundary layer interaction generated by a sharp fin. The effects of bleed are principally limited to the near surface region. The overall vortical structure is insensitive to surface bleed. Keywords: High speed flows; Viscous-inviscid interactions; Computational fluid dynamics; Navier-Stokes equations.
Book Synopsis Theoretical Investigation of 3-D Shock Wave-turbulent Boundary Layer Interactions by : Doyle D. Knight
Download or read book Theoretical Investigation of 3-D Shock Wave-turbulent Boundary Layer Interactions written by Doyle D. Knight and published by . This book was released on 1988 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An experimental investigation of the effects of leading edge geometry on the dynamics of blunt fin-induced shock wave turbulent boundary layer interaction by : Kelly Kleifges
Download or read book An experimental investigation of the effects of leading edge geometry on the dynamics of blunt fin-induced shock wave turbulent boundary layer interaction written by Kelly Kleifges and published by . This book was released on 1993 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of the Flowfield Near a Wrap-Around Fin at Supersonic Speeds by : Carl P. Tilmann
Download or read book Characterization of the Flowfield Near a Wrap-Around Fin at Supersonic Speeds written by Carl P. Tilmann and published by . This book was released on 1998 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wall-mounted semi-cylindrical model fitted with a single wrap- around in (WAF) has been investigated numerically and experimentally, with the objective of characterizing the mean and turbulent flowfield near a WAF in a supersonic flowfield. Numerical and experimental results are used to determine the nature of the flowfield and quantify the effects of fin curvature on the character of the flow near WAFs. This research has been motivated by the need to identify possible sources of a high-speed rolling moment reversal observed in sub-scale flight tests. Detailed mean flow and turbulence measurements were obtained in the AFIT Mach 3 wind tunnel using conventional probes and cross-wire hot-film anemometry at a series of stations upstream of and aft of the fin shock/boundary layer interaction. Hot-film anemometry results showed the turbulence intensity and Reynolds shear stress in the fuselage boundary layer to be far greater on the concave side of the fin than on the convex side. Mean flow was also obtained in the AFIT Mach 5 wind tunnel using conventional pressure probes. Numerical results were also obtained at the test conditions employing the algebraic eddy viscosity model of Baldwin and Lomax. Correlation with experimental data suggests that the calculations have captured the flow physics involved in this complicated flowfield. The calculations, corroborated by experimental results, indicate that a vortex exists in the fin/body juncture region on the convex side of the fin. This feature is not captured by the oft- used inviscid methods, and can greatly influence the pressure loading on the fin near the root.
Book Synopsis An Experimental Investigation of the Effects of Leading Edge Geometry on the Dynamics of Blunt Fin-induced Shock Wave Turbulent Boundary Layer Interaction by : Kelly Kleifges
Download or read book An Experimental Investigation of the Effects of Leading Edge Geometry on the Dynamics of Blunt Fin-induced Shock Wave Turbulent Boundary Layer Interaction written by Kelly Kleifges and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Unsteady Shock Wave Turbulent Boundary Layer Interactions About a Blunt Fin by :
Download or read book Experimental Investigation of Unsteady Shock Wave Turbulent Boundary Layer Interactions About a Blunt Fin written by and published by . This book was released on 1997 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Investigation of Unsteadiness in Swept Shock Wave/turbulent Boundary Layer Interactions by : Triet Thuong Tran
Download or read book An Experimental Investigation of Unsteadiness in Swept Shock Wave/turbulent Boundary Layer Interactions written by Triet Thuong Tran and published by . This book was released on 1991 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A study of the interaction between the turbulent boundary-layer and the shock wave upstream of fins of varying yaw and sweep in supersonic flow by : James Wilbert Cutbirth
Download or read book A study of the interaction between the turbulent boundary-layer and the shock wave upstream of fins of varying yaw and sweep in supersonic flow written by James Wilbert Cutbirth and published by . This book was released on 1973 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interaction of Two Glancing, Crossing Shock Waves with a Turbulent Boundary-layer at Various Mach Numbers by :
Download or read book Interaction of Two Glancing, Crossing Shock Waves with a Turbulent Boundary-layer at Various Mach Numbers written by and published by . This book was released on 1991 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Three-dimensional Interaction of a Swept Shock Wave with a Turbulent Boundary Layer and the Effects of Air Injection on Separation by : David John Peake
Download or read book Three-dimensional Interaction of a Swept Shock Wave with a Turbulent Boundary Layer and the Effects of Air Injection on Separation written by David John Peake and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurements of Swept Shock Wave/turbulent Boundary-layer Interactions by Holographic Interferometry by : J.C. Hsu
Download or read book Measurements of Swept Shock Wave/turbulent Boundary-layer Interactions by Holographic Interferometry written by J.C. Hsu and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transition Location Effect on Shock Wave Boundary Layer Interaction by : Piotr Doerffer
Download or read book Transition Location Effect on Shock Wave Boundary Layer Interaction written by Piotr Doerffer and published by Springer Nature. This book was released on 2020-07-30 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents experimental and numerical findings on reducing shock-induced separation by applying transition upstream the shock wave. The purpose is to find out how close to the shock wave the transition should be located in order to obtain favorable turbulent boundary layer interaction. The book shares findings obtained using advanced flow measurement methods and concerning e.g. the transition location, boundary layer characteristics, and the detection of shock wave configurations. It includes a number of experimental case studies and CFD simulations that offer valuable insights into the flow structure. It covers RANS/URANS methods for the experimental test section design, as well as more advanced techniques, such as LES, hybrid methods and DNS for studying the transition and shock wave interaction in detail. The experimental and numerical investigations presented here were conducted by sixteen different partners in the context of the TFAST Project. The general focus is on determining if and how it is possible to improve flow performance in comparison to laminar interaction. The book mainly addresses academics and professionals whose work involves the aerodynamics of internal and external flows, as well as experimentalists working with compressible flows. It will also be of benefit for CFD developers and users, and for students of aviation and propulsion systems alike.
Book Synopsis Theoretical Investigation of 3-D Shock Wave-Turbulent Boundary Layer Interactions by : Doyle Knight
Download or read book Theoretical Investigation of 3-D Shock Wave-Turbulent Boundary Layer Interactions written by Doyle Knight and published by . This book was released on 1988 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research describes continuing efforts in the analysis of 3-D shock wave turbulent boundary layer interactions. A significant research activity in 3-D hypersonic shock turbulent interactions is initiated to further develop and validate the theoretical model. The quasiconical free interaction principle is examined by simulation of two geometries -17.5 deg sharp fin and (30,60) swept compression corner (Mach 3) - selected to obtain similar shock strengths. The comparison with experimental data is good. It is confirmed that the differences caused by the particular geometry of the model appear only behind the inviscid shock wave. Continuing research on 3-D turbulent interaction control is focused on the effect of bleed and the simulation of flows past the double-fin configuration. The effect of suction is examined on a strong (fin angle=20 deg, Mach 3) and a weak interaction (8 deg, Mach 3). The overall effect of bleed is remarkably modest. Two double-fin configurations (4 x 4 and 8 x 8, Mach 3) are simulated. A study of the computed flowfield indicates that the first is a weak interaction. In contrast, the 8 x 8 configuration displays an interesting separated flowfield. An analysis of viscous and inviscid effects in a sharp fin and a swept corner flow indicates that the physics of both geometries are governed primarily by inviscid (pressure) effects. Viscous effects are of lower magnitude but are not restricted to the sublayer region. High speed flows; Viscous inviscid interactions; Boundary layer interactions; Computational fluid dynamics; Navier stokes equations; Turbulence.(mjm).
