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Thursday, May 21, 2020 | History

2 edition of experimental investigation of shock-wave diffraction over compression and expansion corners found in the catalog.

experimental investigation of shock-wave diffraction over compression and expansion corners

R. R. Weynants

experimental investigation of shock-wave diffraction over compression and expansion corners

by R. R. Weynants

  • 153 Want to read
  • 17 Currently reading

Published by Institute for Aerospace Studies, University of Toronto] in [Toronto .
Written in English

    Subjects:
  • Shock waves -- Diffraction.

  • Edition Notes

    Includes bibliographical references.

    Statementby R. R. Weynants.
    SeriesUTIAS technical note ;, no. 126
    Classifications
    LC ClassificationsTL507 .T6 no. 126
    The Physical Object
    Pagination1 v. (various pagings)
    ID Numbers
    Open LibraryOL4998221M
    LC Control Number76490940

    Experimental Investigation of an Incident Shock-Induced Interaction near an Expansion Corner; February(1) Flow Investigation of Linear Cluster Plug Nozzle; (8) December(1) Experimental study of unsteady wake effect on a film-cooled pitchwise-curved surface; October(3). The basic physical principles of the diffraction shock wave phenomenon have been widely studied around sharp corners in the range from small angles to near [1–3]. The flow features that characterise the diffraction region, schematically illustrated in Figure1, are the planar incident shock wave, its weakened.

      Cite this article. JOHNSON, Q., MITCHELL, A. & EVANS, L. X-ray Diffraction Evidence for Crystalline Order and Isotropic Compression during the Shock-wave by: Investigation of small surface protuberances upstream of turbulent boundary layer separation produced by a skewed shock wave at Mach 3 / (Wright-Patterson Air Force Base, Ohio: Air Force Aero Propulsion Laboratory, Air Force Wright Aeronautical Laboratories, Air Force Syspems Command, ), by Robert H Korkegi and Air Force Aero Propulsion.

    Shock and Expansion Waves and energy conservation equations, which can be seen to provide ρ 1v 2 n +p1 = ρ2v 2 2n +p2 () ρ1v1nv1t = ρ2v2nv2t () and m e1 + p1 ρ1 v2 1 2 = m e2 + p2 ρ2 v2 2 2. () σ vt v 1n v1 n n vn v v2 2 2t ε. This book forms an introduction to important aspects of shock-wave propagation in solid materials. Emphasis is on the regime of moderate compression that can be produced by high-velocity impact or detonation of chemical explosives. In this regime relatively simple equations of state are applicable to the description of compression.3/5(1).


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Experimental investigation of shock-wave diffraction over compression and expansion corners by R. R. Weynants Download PDF EPUB FB2

Schematic of the shock wave diffraction around a curved corner for (a) M =; (b) M = The rounded geometry has also the effect that while the vortex grows in size, it remains close to the surface, where a convergent–divergent area is created, bounded by the corner Cited by: 8.

An experimental investigation of shock-wave diffraction over compression and expansion corners. Title. An experimental investigation of shock-wave diffraction over compression and expansion corners. Author. Weynants, R.R. Institution. University of Toronto Insitute for Aerospace Studies.

Date Cited by: 5. Experimental investigation on shock wave diffraction over sharp and curved splitters F. Gnanin, K.H. Lo, H. Zare-Behtash, K.

Kontis University of Glasgow, School of Engineering, Glasgow G12 8QQ, UK article info Article history: Received 21 November Received in revised form 23 January Accepted 21 February Available online Shock wave diffraction occurs when a normal travelling wave passes through a sudden area expansion.

Turbulent, compressible, and vortical are the characterising adjectives that describe the flow features, which are slowly smeared out due to the dissipative nature of turbulence.

Experimental investigation on shock wave diffraction over sharp and curved Experimental investigation on shock wa ve diffraction ov er sharp and curved splitters.

Interaction of shock waves emitted from a shock tube with a supersonic projectile. Numerical investigation of shock-wave reflection problems in steady flows. The interaction of a shock wave discharged from the open end of a shock tube with a flat plate.

Analyses of reflection and diffraction of weak shock waves. Diffraction of a shock wave by a compression corner: regular and single Mach reflection V. Vijaya Shankar Diffraction of a shock wave by a compression comer; regular and single Mach reflection by For well over a quarter of a century experimentalists () and theoreticians () have been studying the problem of shock wave.

Diffraction of a shock wave by a compression corner. I - Regular reflection: two-dimensional flowfield resulting from the interaction of a moving planar shock wave with a compression corner is determined using a second-order, discontinuity-fitting, finite-difference approach.

The results of the numerical simulation compare quite. Abstract. The temperature and pressure measurements show that there is an additional pressure region behind the foot of the slip-stream. It is obvious that for double Mach reflection with the second shock wave (Fig.

1 a) the pressure and temperature in the region 6 Author: Tatiana V. Bazhenova. A 2-D planar shock wave diffraction over a 90 degree sharp corner was selected as a bench mark problem.

The problem specification and the output format are described below. The experimental results of this study have shown that the velocities of the contact surface and the secondary shock become independent of the corner angles greater than 75°.

Sun and Takayama have evaluated numerically the vorticity production in a shock-wave diffraction problem over convex corners, with angles varied from 5° to °. The Author: N. Brahmi, A. Hadjadj, V.

Soni, A. Chaudhuri. Weynants RR () An experimental investigation of shock-wave diffraction over compression and expansion corners. UTIAS TN Wheeler J () An interferometric investigation of the regular to Mach reflection transition boundary in pseudostationary flow in by: 8.

In the interaction of a shock wave with a spherical or cylindrical volume of gas of different density and/or sound speed, wave reflection refraction, diffraction and focusing are important. The refraction of shock waves at plane gas interfaces has been examined by Jahn (), Abd-el-Fattah, Henderson & Lozzi (), Abd-el-FattahFile Size: 5MB.

The turbulent structures and long-time flow dynamics of shock diffraction over 90° convex corner associated with an incident shock Mach number M s = are investigated by large eddy simulation (LES). The average evolution of the core of the primary vortex is in agreement with the previous two dimensional by: 1.

This proceedings present the results of the 29th International Symposium on Shock Waves (ISSW29) which was held in Madison, Wisconsin, U.S.A., from July 14 to J Numerical Study on Shock Wave Interaction over Compression Corner with 30 deg.

in Hypersonic Flow. Experimental Investigation of Shock-Wave Propagation in Aqueous Foam. Waves in a Shock Tube 3 The isentropic relation is a power law; so the pressure and density must be nondi-mensionalized in order for the relation to be dimensionally correct.

Hence we introduce P0 and ρ0, which are the initial pressure and initial density respectively, in order to nondimensionalize the Size: KB. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.

Find out more about sending content to Dropbox. On the Whitham theory of shock-wave diffraction at concave cornersCited by: Experimental investigation of supersonic laminar, two-dimensional boundary-layer separation in a compression corner with and without cooling.

Prediction of Supersonic Flow over Compression Corner. Journal of Applied Sciences, Vol. 11, No. Cited by: In the field of aerospace engineering, the study of the characteristics of vortical flows and their unsteady phenomena finds numerous engineering applications related to improvements in the design of tip devices, enhancement of combustor performance, and control of noise generation.

A large amount of work has been carried out in the analysis of the shock wave diffraction around conventional Cited by: 2. This book introduces the core concepts of the shock wave physics of condensed matter, taking a continuum mechanics approach to examine liquids and isotropic solids.

The text primarily focuses on one-dimensional uniaxial compression in order to show the. Computation of shock wave reflection and diffraction over a semicircular cylinder in a dusty gas.

XIAOLONG YANG, Experimental study of shock wave and hypersonic boundary layer interactions near a convex corner. DSMC numerical investigation of rarefied compression corner flow. A. CHPOUN, J. LENGRAND.Shock Wave Compression of Condensed Matter: A Primer (Shock Wave and High Pressure Phenomena) An overview of basic experimental techniques for measuring pressure, shock velocity, mass velocity, compression and internal energy of steady 1-D shock waves is then presented.

Page 1 of 1 Start over Page 1 of /5(3).Shock-Expansion Theory. Shock expansion theory is nothing else but the analysis of flow situations including both shock waves and expansion waves.

As an example the flow over a diamond wedge is analyzed and also the flow over a flat plate at an angle of attack.