Journal ArticleDOI
Entropy-Layer Influence on Single-Fin and Double-Fin/Boundary-Layer Interactions
Volf Ya. Borovoy,Ivan Vladimirovich Egorov,Vladimir Evguenyevich Mosharov,Vladimir Nikolaevich Radchenko,A. S. Skuratov,I. V. Struminskaya +5 more
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TLDR
In this article, the influence of the blunted plate leading edge on the flow over a single fin or pair of fins installed on the plate is studied experimentally and numerically, and experiments are carried out in a Ludwieg-type wind tunnel at Mach numbers of M∞=5, 6, and 8 and Reynolds numbers from 7×106 to 27×106 at turbulent, transitional, and laminar boundary layers on a plate in front of the fins.Abstract:
The influence of the entropy layer generated by the blunted-plate leading edge on the flow over a single fin or pair of fins installed on the plate is studied experimentally and numerically. Experiments are carried out in a Ludwieg-type wind tunnel at Mach numbers of M∞=5, 6, and 8 and Reynolds numbers from 7×106 to 27×106 at turbulent, transitional, and laminar boundary layers on the plate in front of the fins. Panoramic optical methods are used for measurements of heat flux and pressure. Flow visualization is done as well. It is shown that even a small blunting of the plate leading edge considerably changes the heat transfer, pressure, and shear-stress distributions at the shock wave/boundary-layer interactions; and, under certain conditions, it causes changes of the flow structure.read more
Citations
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Journal ArticleDOI
A swept fin-induced flow field with different height mounting gaps
TL;DR: In this article, the authors used a nano-tracer-based Planar Laser Scattering (NPLS) and Temperature Sensitive Paints (TSP) to visualize and measure transient flow structures and heat flux distribution of a swept fin-induced flow field with different height mounting gaps.
Journal ArticleDOI
Preliminary experimental assessment of supersonic airflow behavior over ExoMars and X–43 inlet models using multiple flow regime shock tube
TL;DR: In this article, a high-speed video camera was used to record the gas flow under Mach numbers M=7...4.5 around the model surfaces and the obtained data were analyzed using image recognition software systems.
Journal ArticleDOI
Flow Structure and Heat Flux Distribution of a Backswept Fin Induced Flow Field at M = 6
TL;DR: In this article, a backwept fin was simulated with a planar laser scattering and temperature sensitive paints under the Reynolds-averaged Navier-Stokes equations with k-ω Shear-Stress Transport turbulence model and the numerical results were compared and analyzed with the experimental results.
Book ChapterDOI
Applications of TSP
TL;DR: In this article, TSP measurements on a circular cone, an inlet ramp, the AGARD HB-2 standard model, and single and double fins in hypersonic wind tunnels are described.
Journal ArticleDOI
Three-dimensional characteristics of crossing shock wave/turbulent boundary layer interaction in a double fin with and without micro-ramp control
TL;DR: In this paper , the 3D interactions between crossing shock waves and a turbulent boundary layer (CSWBLI) inside a symmetric double fin are experimentally studied using nanoparticle-based planar laser scattering, supersonic particle image velocimetry, and surface oil visualization.
References
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Book
Particle Image Velocimetry: A Practical Guide
TL;DR: In this paper, the authors present a practical guide for the planning, performance and understanding of experiments employing the PIV technique, which is primarily intended for engineers, scientists and students, who already have some basic knowledge of fluid mechanics and nonintrusive optical measurement techniques.
Book ChapterDOI
Particle Image Velocimetry
TL;DR: In this paper, the authors use hot-wire (HW) or laser velocimetry (LV) to estimate the velocity, vorticity, and pressure fields of wake flows.
Journal ArticleDOI
Advances in CFD prediction of shock wave turbulent boundary layer interactions
TL;DR: In this paper, a survey of recent computational fluid dynamics (CFD) simulations of turbulent boundary layer interactions is presented, and the capabilities and limitations are described, and future research needs identified.
Journal ArticleDOI
Skin Friction and Heat Flux Measurements in Shock Boundary Layer Interaction Flows
TL;DR: In this paper, modern nonintrusive techniques are used to make skin-friction and heat transfer measurements in two shockwave/turbulent boundary-layer interactions (SWTBLIs).