Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Experimental Investigation of Shock Wave and Boundary Layer Interaction Near Convex Corners in Hypersonic Flow
Author: Experimental Investigation of Shock Wave and Boundary Layer Interaction Near Convex Corners in Hypersonic Flow
Author: Sohail MohammedPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
The hypersonic impulse gun tunnel at the UTIAS was used to experimentally investigate the interaction between an oblique shock wave and boundary layer near convex corners in hypersonic flow. Experiments were conducted in two phases. The first phase involved tunnel test operating conditions that presumably developed turbulent boundary layer on the model surface in Mach 7.2 flow. Schlieren photographs indicated that it was not possible to conclude that the boundary layer developed was, in fact, turbulent. The second phase of the program included preliminary investigation of shock-laminar boundary layer interaction near rounded convex conners. As a first step, experiments were repeated to validate previously documented results achieved at the current facility. Surface static pressure measurements and Schlieren photographs were taken to investigate interaction near a 5 degrees convex corner. Results obtained in this phase supported the repeatable characteristics of the facility.
Experimental Study of Shock Wave and Hypersonic Boundary Layer Interactions Near a Convex Corner
Author: R. J. HawboldtAn Experimental Study of Shock Wave and Boundary Layer Interactions Near a Convex Corner
Author: Robert John HawboldtPublisher:
ISBN:
Category :
Languages : en
Pages : 262
Book Description
An Experimental Investigation of Boundary Layer Expansion Around a Convex Corner in Supersonic Flow
Author: Thomas JohaniAn Experimental Investigation of Shock-wave/boundary-layer Interaction Induced by Compression Corners & Sharp Fins
Author: Ömer Haldun ÜnalmışAn Experimental Investigation of the Interaction Between a Shock Wave and a Turbulent Boundary Layer on a Convex Wall
Author: C. NebbelingExperimental Studies of Hypersonic Shock-Wave Boundary-Layer Interactions
Author: National Aeronautics and Space Adm NasaPublisher:
ISBN: 9781730766190
Category :
Languages : en
Pages : 66
Book Description
Two classes of shock-wave boundary-layer interactions were studied experimentally in a shock tunnel in which a low Reynolds number, turbulent flow at Mach 8 was developed on a cold, flat test surface. The two classes of interactions were: (1) a swept interaction generated by a wedge ('fin') mounted perpendicularly on the flat plate; and (2) a two-dimensional, unseparated interaction induced by a shock impinging near an expansion corner. The swept interaction, with wedge angles of 5-20 degrees, was separated and there was also indication that the strongest interactions prossessed secondary separation zones. The interaction spread out extensively from the inviscid shock location although no indication of quasi-conical symmetry was evident. The surface pressure from the upstream influence to the inviscid shock was relatively low compared to the inviscid downstream value but it rose rapidly past the inviscid shock location. However, the surface pressure did not reach the downstream inviscid value and reasons were proposed for this anomalous behavior compared to strongly separated, supersonic interactions. The second class of interactions involved weak shocks impinging near small expansion corners. As a prelude to studying this interaction, a hypersonic similarity parameter was identified for the pure, expansion corner flow. The expansion corner severely damped out surface pressure fluctuations. When a shock impinged upstream of the corner, no significant changes to the surface pressure were found as compared to the case when the shock impinged on a flat plate. But, when the shock impinged downstream of the corner, a close coupling existed between the two wave systems, unlike the supersonic case. This close coupling modified the upstream influence. Regardless of whether the shock impinged ahead or behind the corner, the downstream region was affected by the close coupling between the shock and the expansion. Not only was the mean pressure distribution modified but the un...
An experimental investigation of shock wave-turbulent boundary layer interactions with and without boundary layer suction
Author: Chen-Chih SunPublisher:
ISBN:
Category : Shock waves
Languages : en
Pages : 916
Book Description
Shock Wave Interactions
Author: Konstantinos KontisPublisher: Springer
ISBN: 3319731807
Category : Technology & Engineering
Languages : en
Pages : 408
Book Description
This edited monograph contains the proceedings of the International Shock Interaction Symposium, which emerged as an heir to both the Mach Reflection and Shock Vortex Interaction Symposia. These scientific biannual meetings provide an ideal platform to expose new developments and discuss recent challenges in the field of shock wave interaction phenomena. The goal of the symposia is to offer a forum for international interaction between young and established scientists in the field of shock and blast wave interaction phenomena. The target audience of this book comprises primarily researchers and experts in the field of shock waves, but the book may also be beneficial for young scientists and graduate students alike.