Forced Boundary-Layer Transition on X-43 (Hyper-X) in NASA LaRC 20-Inch Mach 6 Air Tunnel

Forced Boundary-Layer Transition on X-43 (Hyper-X) in NASA LaRC 20-Inch Mach 6 Air Tunnel PDF

Author: National Aeronautics and Space Administration (NASA)

Publisher: Createspace Independent Publishing Platform

Published: 2018-05-31

Total Pages: 64

ISBN-13: 9781720558514

DOWNLOAD EBOOK →

Aeroheating and boundary layer transition characteristics for the X-43 (Hyper-X) configuration have been experimentally examined in the Langley 20-Inch Mach 6 Air Tunnel. Global surface heat transfer distributions, and surface streamline patterns were measured on a 0.333-scale model of the Hyper-X forebody. Parametric variations include angles-of-attack of 0-deg, 2-deg, and 4-deg; Reynolds numbers based on model length of 1.2 to 15.4 million; and inlet cowl door both open and closed. The effects of discrete roughness elements on the forebody boundary layer, which included variations in trip configuration and height, were investigated. This document is intended to serve as a release of preliminary data to the Hyper-X program; analysis is limited to observations of the experimental trends in order to expedite dissemination.Berry, Scott A. and DiFulvio, Michael and Kowalkowski, Matthew K.Langley Research CenterAERODYNAMIC HEATING; BOUNDARY LAYER TRANSITION; WIND TUNNEL TESTS; SCALE MODELS; HEAT TRANSFER; HYPERSONIC FLIGHT; THERMOGRAPHY; ANGLE OF ATTACK; REYNOLDS NUMBER; HYPERSONIC SPEED; X-43 VEHICLE

Forced Boundary-Layer Transition on X-43 (Hyper-X) in NASA LaRC 31 Mach 10 Air Tunnel

Forced Boundary-Layer Transition on X-43 (Hyper-X) in NASA LaRC 31 Mach 10 Air Tunnel PDF

Author: National Aeronautics and Space Administration (NASA)

Publisher: Createspace Independent Publishing Platform

Published: 2018-05-31

Total Pages: 78

ISBN-13: 9781720558590

DOWNLOAD EBOOK →

Aeroheating and boundary layer transition characteristics for the X-43 (Hyper-X) configuration have been experimentally examined in the Langley 31-Inch Mach 10 Air Tunnel. Global surface heat transfer distributions, and surface streamline patterns were measured on a 0.333-scale model of the Hyper-X forebody. Parametric variations include angles-of-attack of 0-deg, 2-deg, 3-deg, and 4-deg; Reynolds numbers based on model length of 1.2 to 5.1 million; and inlet cowl door both open and closed. The effects of discrete roughness elements on the forebody boundary layer, which included variations in trip configuration and height, were investigated. This document is intended to serve as a release of preliminary data to the Hyper-X program; analysis is limited to observations of the experimental trends in order to expedite dissemination.Administration (NASA)Langley Research CenterAERODYNAMIC HEATING; BOUNDARY LAYER TRANSITION; WIND TUNNEL TESTS; SCALE MODELS; HEAT TRANSFER; THERMOGRAPHY; HYPERSONIC FLIGHT; X-43 VEHICLE; REYNOLDS NUMBER; ANGLE OF ATTACK; HYPERSONIC SPEED

IUTAM Laminar-Turbulent Transition

IUTAM Laminar-Turbulent Transition PDF

Author: Spencer Sherwin

Publisher: Springer Nature

Published: 2021-07-30

Total Pages: 809

ISBN-13: 3030679020

DOWNLOAD EBOOK →

This volume comprises the carefully revised papers of the 9th IUTAM Symposium on Laminar-Turbulent Transition, held at the Imperial College, London, UK, in September 2019. The papers focus on the leading research in understanding transition to turbulence, which is a challenging topic of fluid mechanics and arises in many modern technologies as well as in nature. The proceedings are of interest for researchers in fluid mechanics and industry who have to handle these types of problems, such as in the aeronautical sector.

Scramjet Propulsion

Scramjet Propulsion PDF

Author: Dora Musielak

Publisher: John Wiley & Sons

Published: 2023-01-10

Total Pages: 516

ISBN-13: 1119640601

DOWNLOAD EBOOK →

Scramjet Propulsion Explore the cutting edge of HAP technologies with this comprehensive resource from an international leader in her field Scramjet Propulsion: A Practical Introduction delivers a comprehensive treatment of hypersonic air breathing propulsion and its applications. The book covers the most up-to-date hypersonic technologies, like endothermic fuels, fuel injection and flameholding systems, high temperature materials, and TPS, and offers technological overviews of hypersonic flight platforms like the X-43A, X-51A, and HiFIRE. It is organized around easy-to-understand explanations of technical challenges and provides extensive references for the information contained within. The highly accomplished author provides readers with a fulsome description of the theoretical underpinnings of hypersonic technologies, as well as critical design and technology issues affecting hypersonic air breathing propulsion technologies. The book’s combination of introductory theory and advanced instruction about individual hypersonic engine components is ideal for students and practitioners in fields as diverse as hypersonic vehicle and propulsion development for missile defense technologies, launch aerospaceplanes, and civilian transports. Over 250 illustrations and tables round out the material. Readers will also learn from: A thorough introduction to hypersonic flight, hypersonic vehicle concepts, and a review of fundamental principles in hypersonic air breathing propulsion Explorations of the aerothermodynamics of scramjet engines and the design of scramjet components, as well as hypersonic air breathing propulsion combustors and fuels Analyses of dual-mode combustion phenomena, materials structures, and thermal management in hypersonic vehicles, and combined cycle propulsion An examination of CFD analysis, ground and flight testing, and simulation Perfect for researchers and graduate students in aerospace engineering, Scramjet Propulsion: A Practical Introduction is also an indispensable addition to the libraries of engineers working on hypersonic vehicle development seeking a state-of-the-art resource in one of the most potentially disruptive areas of aerospace research today.