NASA Technical Note

NASA Technical Note PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 448

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A Study of Penetration of a Liquid Injectant Into a Supersonic Flow

A Study of Penetration of a Liquid Injectant Into a Supersonic Flow PDF Author: Kenneth P. Horn
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 26

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The paper reports a study of normal and lateral spray penetration for small diameter, high pressure, liquid jets issuing at an angle to a uniform supersonic stream. The experimental program described was carried out in a 4-in. by 4-in. blow down supersonic wind tunnel. The flow field is observed by means of a schlieren system, and the spray distribution is indicated by the light scattered by the liquid droplets. The data on normal penetration, in good agreement with data inferred from other investigations, indicate that a single-parameter correlation exists between the properly nondimensionalized penetration height and the injection pressure ratio. Injecting the coolant at a forward angle to the flow produces no substantial change in the penetration height. The data on lateral penetration show the spray width behind the jet to be proportional to the jet diameter with only a weak dependence on the injection pressure ratio. Analytical models proposed by previous investigators are critically examined in light of the results. No single model leads to a proper scaling law for both normal and lateral penetration. (Author).

NASA Technical Note

NASA Technical Note PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 448

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Experimental Investigation of Multiple-jet Liquid Injection Into Hypersonic Flow

Experimental Investigation of Multiple-jet Liquid Injection Into Hypersonic Flow PDF Author: William F. Hinson
Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 50

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Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 400

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Jet in Supersonic Crossflow

Jet in Supersonic Crossflow PDF Author: Mingbo Sun
Publisher: Springer
ISBN: 9811360251
Category : Technology & Engineering
Languages : en
Pages : 291

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Book Description
Based on research into jets in supersonic crossflow carried out by the authors’ team over the past 15 years, this book summarizes and presents many cutting-edge findings and analyses on this subject. It tackles the complicated mixing process of gas jets and atomization process of liquid jets in supersonic crossflow, and studies their physical mechanisms. Advanced experimental and numerical techniques are applied to further readers’ understanding of atomization, mixing, and combustion of fuel jets in supersonic crossflow, which can promote superior fuel injection design in scramjet engines. The book offers a valuable reference guide for all researchers and engineers working on the design of scramjet engines, and will also benefit graduate students majoring in aeronautical and aerospace engineering.

Proceedings of the XXth International Astronautical Congress

Proceedings of the XXth International Astronautical Congress PDF Author: P. Contensou
Publisher: Elsevier
ISBN: 1483146014
Category : Technology & Engineering
Languages : en
Pages : 1066

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Book Description
Proceedings of the XXth International Astronautical Congress compiles selected papers presented at the 20th International Astronautical Congress held in Mar del Plata, Argentina in 1969. This book is divided into five main topics—spacecraft engineering, astrodynamics, astrionics, bioastronautics, and problems of education. In these topics, this compilation specifically discusses the equatorial vibrations of a long flexible boom on a spin-stabilized satellite of non-zero radius; heat transfer to linear bodies in two-dimensional hypersonic low density; and limits of accuracy of general perturbations for satellites moving under constant forces. The rapid optimization of multiple-burn rocket flights; data transmission for planetary studies; and comparison of theoretical and experimental attitude data for the DODGE spacecraft are also elaborated. This text also covers the Apollo life-support and protective systems; bioastronautical aspects of Apollo biomedical operations; and development and applications of hot water rockets. This publication is recommended for astrophysicists and scientists of other disciplines related to astronomy.

Design and Testing of a Chemical Injection System for Reentry Plasma Alleviation

Design and Testing of a Chemical Injection System for Reentry Plasma Alleviation PDF Author: John F. Lennon
Publisher:
ISBN:
Category : Fluorohydrocarbons
Languages : en
Pages : 52

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The effect of injecting an electrophilic liquid into the ionized flow field surrounding a reentry vehicle was observed during the flight of a trailblazer 2 on 28 July 1972. The report describes the rationale used to initially screen candidate additives and the experimental evaluation that finally resulted in the selection of Freon 114B2 for operational use. Injection system design and preliminary testing are discussed, and the predicted and actual performance during flight are compared. Data from on-board antennas and electrostatic probes confirmed that the additive reduced the electron density and improved transmission. A number of factors characterizing the injection are presented as a basis for analyzing the flow-additive interaction. (Author).

Air Breathing Engines and Aerospace Propulsion

Air Breathing Engines and Aerospace Propulsion PDF Author: B. N. Raghunandan
Publisher: Allied Publishers
ISBN: 9788177646900
Category : Technology & Engineering
Languages : en
Pages : 752

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Contributed papers presented at the 7th National Conference on Air Breathing Engines and Aerospace Propulsion, hosted at I.I.T., Kanpur.

Fluid Mechanics: Soviet Research

Fluid Mechanics: Soviet Research PDF Author:
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 1034

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Applied Mechanics Reviews

Applied Mechanics Reviews PDF Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 804

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