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An Experimental And Computational Study Of Unsteady Supersonic 2 D Open Cavity Flow Physics
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Book Synopsis An Experimental and Computational Study of Unsteady Supersonic 2-D Open Cavity Flow Physics by : Douglas W. Dusing
Download or read book An Experimental and Computational Study of Unsteady Supersonic 2-D Open Cavity Flow Physics written by Douglas W. Dusing and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Study of Passive Control of Hypersonic Cavity Flow Oscillations by : D. S. Dolling
Download or read book An Experimental Study of Passive Control of Hypersonic Cavity Flow Oscillations written by D. S. Dolling and published by . This book was released on 1998 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study of open cavity flow has been made in a high Reynolds number, Mach 5 turbulent boundary layer. The majority of measurements made were of fluctuating wall pressures. The objectives were: (1) examine how effective changes in front and rear wall geometry were at attenuating the pressure oscillations, (2) explore how impingement of a shock wave (variable strength and position) the cavity flow, and (3) how stores (different geometries and positions) affected the cavity flow. In addition, techniques which were judged effective at attenuating pressure oscillations for the empty cavity were used with shock impingement and with stores in order to explore their effectiveness under perturbed flow conditions. The results show that vented and slotted walls, and spoilers are ineffective. A 3-D rear wall (swept in both planes and symmetric about the center line) attenuated the strongest oscillations by factors of up to 7 compared to the baseline rectangular cavity. Regardless of shock impingement position, shock strength, store position, store dimensions, store to cavity volume ratio and asymmetric store arrangement the cavity oscillation frequencies remain essentially unchanged. Based on the mean and rms Pressure distributions (whose magnitude varies substantially but whose basic shape does not change significantly) and surface flow patterns it appears that the essential flow structure also remains largely unchanged. These similarities suggest that control techniques developed for the empty cavity flow should be effective with shock impingement or store release. Tests using two passive control rear walls in perturbed cavity flow support this conclusion.
Book Synopsis A Study of the Flow Physics about 2-D Supersonic Open Cavities Using Numerical Simulations by : Chung-Jen John Tam
Download or read book A Study of the Flow Physics about 2-D Supersonic Open Cavities Using Numerical Simulations written by Chung-Jen John Tam and published by . This book was released on 1997 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recent Advances in Mechanical Engineering by : Anoop Kumar Shukla
Download or read book Recent Advances in Mechanical Engineering written by Anoop Kumar Shukla and published by Springer Nature. This book was released on 2023-06-18 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises the select proceedings of the 3rd Biennial International Conference on Future Learning Aspects of Mechanical Engineering (FLAME) 2022. It aims to provide a comprehensive and broad-spectrum picture of the state-of-the-art research and development in thermal, fluids, energy and process engineering, mechatronics, control and robotics, material science and engineering, solid mechanics and structural engineering, dynamics and control, engineering design, manufacturing and industrial engineering, automobile engineering. This volume will prove a valuable resource for researchers and professionals in mechanical engineering and allied fields.
Book Synopsis 32nd Aerospace Sciences Meeting & Exhibit: 94-0500 - 94-0534 by :
Download or read book 32nd Aerospace Sciences Meeting & Exhibit: 94-0500 - 94-0534 written by and published by . This book was released on 1994 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Unsteady Supersonic Combustion by : Mingbo Sun
Download or read book Unsteady Supersonic Combustion written by Mingbo Sun and published by Springer Nature. This book was released on 2020-04-14 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the unsteady phenomena needed to understand supersonic combustion. Following an initial chapter that introduces readers to the basic concepts in and classical studies on unsteady supersonic combustion, the book highlights recent studies on unsteady phenomena, which offer insights on e.g. interactions between acoustic waves and flames, flow dominating instability, ignition instability, flame flashback, and near-blowout-limit combustion. In turn, the book discusses in detail the fundamental mechanisms of these phenomena, and puts forward practical suggestions for future scramjet design.
Book Synopsis Supersonic Sudden-expansion Flow with Fluid Injection by : S.M. Correa
Download or read book Supersonic Sudden-expansion Flow with Fluid Injection written by S.M. Correa and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Supersonic Cavity Flows and Their Control by : Ning Zhuang
Download or read book Experimental Investigation of Supersonic Cavity Flows and Their Control written by Ning Zhuang and published by . This book was released on 2007 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of supersonic cavity flows is of interest both from fundamental fluid dynamics and practical perspectives. The complex nature of this flowfield, consisting of compressible shear layers, compression/expansion waves, and fluid-acoustic interactions, makes it a rich problem to study. A detailed experimental study of supersonic flow (M=1.5 to 2) over a range of three-dimensional rectangular cavities (L/D=1 to 5.2) was conducted. The measurements included unsteady surface pressure measurements, particle image velocimetry, and flow visualization using shadowgraph and schlieren. Large-scale structures in the shear layer and a large recirculation zone in the cavity was observed. Spatial and temporal mode switching was also observed, the nature being different for short and long cavities. The shear layer characteristics of the two cavities are very different in term of curvature and growth. Supersonic microjets were used at the leading edge of the cavities to suppress the resonance in the flow. With a minimal mass flux (0.15%), the activation of microjets led to a large reduction in cavity tones (20 dB) and overall sound pressure levels (9dB). In addition, the microjet injection enhanced the shear layer mixing and reduced the velocity fluctuation in the cavities. The significant reductions together with the low mass flux requirements make this a potentially viable technique for full-scale, practical applications.
Book Synopsis Computations of Three-Dimensional Unsteady Supersonic Cavity Flow to Study the Effect of Different Downstream Geometries by : B. I. Soemarwoto
Download or read book Computations of Three-Dimensional Unsteady Supersonic Cavity Flow to Study the Effect of Different Downstream Geometries written by B. I. Soemarwoto and published by . This book was released on 2003 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computations of three-dimensional unsteady supersonic cavity flow are performed for a free-stream Mach number of 1.2. Two cavity geometries are considered: (i) a simple rectangular cavity of length-to-depth (L/D) and length-to-width (L/W) ratios of 4.5, and (ii) a cavity with a 450 ramp attached to the downstream wall of the simple rectangular cavity. Two flow models for computing the cavity flow field are assessed: (a) the Reynolds-Averaged Navier-Stokes (RANS) equations with a kappa-omega- turbulence model for the whole flow field, and (b) a combination of an inviscid flow model using the Euler equations for the domain outside the boundary layer and the RANS model for the boundary layer. The structures of the flow fields resulting from the different models are observed. The effect of the different downstream geometries is assessed.
Download or read book Aerospace America written by and published by . This book was released on 1996 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Institute of Aeronautics and Astronautics. Technical Information Service Publisher : ISBN 13 : Total Pages :226 pages Book Rating :4.3/5 (91 download)
Book Synopsis The Finding Guide to AIAA Meeting Papers by : American Institute of Aeronautics and Astronautics. Technical Information Service
Download or read book The Finding Guide to AIAA Meeting Papers written by American Institute of Aeronautics and Astronautics. Technical Information Service and published by . This book was released on 1994 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Supersonic Open Cavity Flow Physics Ascertained from Algebraic Turbulence Model Simulations by : Chung-Jen Tam
Download or read book Supersonic Open Cavity Flow Physics Ascertained from Algebraic Turbulence Model Simulations written by Chung-Jen Tam and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental and Computational Investigation Into Supersonic Shear Layer Driven Single and Multiple Cavity Flowfields by : Xin Zhang
Download or read book An Experimental and Computational Investigation Into Supersonic Shear Layer Driven Single and Multiple Cavity Flowfields written by Xin Zhang and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computations of Three-dimensional Unsteady Supersonic Cavity Flow to Study the Effect of Different Downstream Geometries by : B. I. Soemarwoto
Download or read book Computations of Three-dimensional Unsteady Supersonic Cavity Flow to Study the Effect of Different Downstream Geometries written by B. I. Soemarwoto and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Study on Unsteady Supersonic Cavity Flows by : Yoko Takakura
Download or read book Numerical Study on Unsteady Supersonic Cavity Flows written by Yoko Takakura and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computational Fluid Dynamics by : Takeo Kajishima
Download or read book Computational Fluid Dynamics written by Takeo Kajishima and published by Springer. This book was released on 2016-10-01 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook presents numerical solution techniques for incompressible turbulent flows that occur in a variety of scientific and engineering settings including aerodynamics of ground-based vehicles and low-speed aircraft, fluid flows in energy systems, atmospheric flows, and biological flows. This book encompasses fluid mechanics, partial differential equations, numerical methods, and turbulence models, and emphasizes the foundation on how the governing partial differential equations for incompressible fluid flow can be solved numerically in an accurate and efficient manner. Extensive discussions on incompressible flow solvers and turbulence modeling are also offered. This text is an ideal instructional resource and reference for students, research scientists, and professional engineers interested in analyzing fluid flows using numerical simulations for fundamental research and industrial applications.
