Author: H. B. Mathes
Publisher:
ISBN:
Category :
Languages : en
Pages : 25
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Book Description
A review is presented of the classes of instability, conditions favoring each class, experimental measurements recognized to diagnose each class, and problems in conducting such measurements. (Author).
Author: H. B. MATHES
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
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Book Description
Several measurement problems which have been encountered in a long-range U.S. Navy research program on solid propellant combustion instability are discussed. Topics included are: (a) behavior of several types of high-frequency response pressure gages, (b) difficulties in detecting high-frequency pressure oscillations, (c) techniques in recording and storing detected data, and (d) methods used in recovery and analysis of recorded data. (Author).
Author: David T. Harrje
Publisher:
ISBN:
Category : Liquid propellant rockets
Languages : en
Pages : 668
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Book Description
The solution of problems of combustion instability for more effective communication between the various workers in this field is considered. The extent of combustion instability problems in liquid propellant rocket engines and recommendations for their solution are discussed. The most significant developments, both theoretical and experimental, are presented, with emphasis on fundamental principles and relationships between alternative approaches.
Author: James W. Kordig
Publisher:
ISBN:
Category : Rocket engines
Languages : en
Pages : 112
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Book Description
Author: P. C. Braithwaitet
Publisher:
ISBN:
Category :
Languages : en
Pages : 60
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Book Description
The problem of combustion instability in solid rocket propellants has been studied extensively over the past three decades. The most common way oscillatory combustion is controlled in rocket motors today is through the use of additives known as acoustic suppressants. The perfect suppressant would control all of the oscillatory modes which are present in a solid propellant rocket motor. Unfortunately suppressants that work well at one frequency, such as the product in a longitudinal mode, can be quite ineffective at other frequencies, such as tangential mode. Still, some suppressants have been relatively successful in suppressing oscillations in operational motors, the more successful suppressants include Al, ZrC and graphite.
Author: Mark L. Dranovsky
Publisher: AIAA (American Institute of Aeronautics & Astronautics)
ISBN: 9781563479212
Category : Technology & Engineering
Languages : en
Pages : 352
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Book Description
This is the first book in the literature to cover the development and testing practices for liquid rocket engines in Russia and the former Soviet Union.Combustion instability represents one of the most challenging probelms in the development of propulsion engines. A famous example is the F-1 engines for the first stage of the Saturn V launch vehicles in the Apollo project. More than 2000 full engine tests and a vast number of design modifications were conducted to cure the instability problem.This book contains first-hand information about the testing and development practices for treating liquid rocket combustion-instability problems in Russia and the former Soviet Union. It covers more than 50 years of research, with an emphasis placed on the advances made since 1970.The book was prepared by a former R&D director of the Research Institute of Chemical Engineering, NIICHIMMASH, the largest liquid rocket testing center in the world, and has been carefully edited by three well-known experts in the field.
Author:
Publisher:
ISBN:
Category : Detonation waves
Languages : en
Pages : 1532
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Book Description
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 850
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 500
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Book Description
Author: Gary A. Flandro
Publisher:
ISBN:
Category :
Languages : en
Pages : 354
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Book Description
The report consists of two problems related to acoustic combustion instability in solid propellant rockets. In the first problem, coupled acoustic cavities with mass flux across a common boundary are studied. Since the propellant grain in a solid rocket motor may assume various configurations to meet specific performance criteria, physical models considering two or more wave-carrying systems coupled together so that acoustic motion of each is affected by the other are required in the study of acoustic instability in some motor designs. In the second problem, linear analyses employing both one-dimensional and three-dimensional flow models of the T-burner are studied to resolve which is the more appropriate representation of the growth of acoustic models yield an identical expression for the acoustic growth rate of dominant longitudinal modes in the T-burner if properly formulated. (Author).
