Proceedings ArticleDOI
Freestream disturbance effects on boundary layer instability and transition on the afosr bolt geometry
Heather Kostak,Rodney D. W. Bowersox,Gregory McKiernan,John R. Thome,Graham V. Candler,Rudolph A. King +5 more
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The article was published on 2019-01-01. It has received 12 citations till now. The article focuses on the topics: Freestream & Disturbance (geology).read more
Citations
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Journal ArticleDOI
Numerical Simulation of Instabilities in the Boundary-Layer Transition Experiment Flowfield
TL;DR: In this article, the development of disturbances in the boundary-layer transition (BoLT) flight experiment flowfield is investigated using a recently developed "quiet direct numerical simulation (DNS)" approach.
Journal ArticleDOI
Observation-infused simulations of high-speed boundary-layer transition
David Buchta,Tamer A. Zaki +1 more
TL;DR: In this article, an ensemble variational (EnVar) optimization is performed, whereby the upstream flow that optimally reproduces the observations is determined, and judicious choice of the ensemble members improves convergence and reduces the prediction uncertainty.
Proceedings ArticleDOI
Hypersonic Ground Tests With High-Frequency Instrumentation In Support of the Boundary Layer Transition (BOLT) Flight Experiment
Dennis C. Berridge,Heather Kostak,Gregory McKiernan,Bradley M. Wheaton,Thomas D. Wolf,Steven P. Schneider +5 more
Journal ArticleDOI
Preflight Ground Test Analyses of the Boundary Layer Transition (BOLT) Flight Geometry
TL;DR: In this article, wind-tunnel experiments were performed to quantify boundary-layer instabilities both on and off the surface of a 33% scale model of the U.S. Air Force Research Laboratory/U.S..
Proceedings ArticleDOI
LaRC Aerothermodynamic Ground Tests in Support of BOLT Flight Experiment
Scott A. Berry,Michelle L. Mason,Francis A. Greene,Rudy A. King,Elizabeth F. Rieken,Kevin Basore +5 more
TL;DR: A review of recent aerothermodynamic ground-test contributions by NASA Langley Research Center (LaRC) to the BOLT flight test program is provided in this article.
References
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Journal ArticleDOI
Stability and transition of three-dimensional boundary layers
TL;DR: The recent progress in three-dimensional boundary-layer stability and transition is reviewed in this paper, focusing on the crossflow instability that leads to transition on swept wings and rotating disks.
Book
Pressure and Temperature Sensitive Paints
TL;DR: A concise exposition of the main technical aspects of pressure and temperature-sensitive paints (PSP and TSP) can be found in this article, where they have been used for aerodynamic measurements.
Journal ArticleDOI
Transition and Stability of High-Speed Boundary Layers
TL;DR: In this article, stability and laminar-turbulent transition in high-speed boundary-layer flows are discussed, emphasizing qualitative features of the disturbance spectrum leading to new mechanisms of receptivity and instability.
Journal ArticleDOI
Stability of three-dimensional boundary layers
Helen L. Reed,William S. Saric +1 more
TL;DR: In this article, the crossflow instability and crossflow/Tollmien-Schlichting wave interactions are analyzed through the numerical solution of the full three-dimensional Navier-Stokes equations including unsteadiness, curvature, and sweep.