Analytical and Experimental Evaluation of the Supersonic Combustion Ramjet Engine. Volume Ii. Component Evaluation


Book Description

This was an experimental and analytical investigation to supply design information for the aerothermo design of a supersonic combustor for a flight test vehicle. The penetration of fuel jets into a supersonic stream was investigated in a cold flow supersonic wind tunnel and combustion test of scale model combustors were conducted in a Hypersonic Arc-Tunnel. Combustion tests of several configurations identified a burner having adequate performance characteristics for achieving the vehicle mission. The aerothermo design of the vehicle combustor was based on this tested configuration. This volume is devoted to investigations of Fuel Injection and Combustion in supersonic airstreams. (Author).













The Scramjet Engine


Book Description

The renewed interest in high-speed propulsion has led to increased activity in the development of the supersonic combustion ramjet engine for hypersonic flight applications. In the hypersonic regime the scramjet engine's specific thrust exceeds that of other propulsion systems. This book, written by a leading researcher, describes the processes and characteristics of the scramjet engine in a unified manner, reviewing both theoretical and experimental research. The focus is on the phenomena that dictate the thermo-aerodynamic processes encountered in the scramjet engine, including component analyses and flowpath considerations; fundamental theoretical topics related to internal flow with chemical reactions and non-equilibrium effects, high-temperature gas dynamics, and hypersonic effects are included. Cycle and component analyses are further described, followed by flowpath examination. Finally, the book reviews experimental and theoretical capabilities and describes ground testing facilities and computational fluid dynamics facilities developed for the study of time-accurate, high-temperature aerodynamics.




Scramjet Propulsion


Book Description










Ramjet Technology Program. Volume Ii. Ramjet Structural Component Investigations


Book Description

Application evaluation was made of ramjet structural elements utilizing advanced material systems. The materials developed were used as supersonic leading edge components and as combustion chambers and nozzles for rockets and ramjet engines. A comprehensive evaluation was made of the materials physical and mechanical properties, along with an evaluation of their behavior in typical structural components. Reliable, high temperature oxidation resistant coatings of silicon carbide (SiC) have been successfully applied to graphite, tungsten, and molybdenum. Freestanding shapes of SiC have also been produced by the vapor deposition method, but physical behavior characteristics have not been adequately determined for this material. A test method and the necessary equipment for compression testing thin wall tubes and solid specimens at temperatures up to 2460 R was developed. (Author).




Subsonic Combustion Ramjet Design


Book Description

This book presents a step-by-step methodology for the design of ramjet engines. It explores ramjet combustion, provides guidelines on how to size the engines, and discusses performance analysis. The book begins with an introduction to ramjet design, including fundamental definitions in the field. It then discusses ramjet engine performance, and fuels which can be used. Several types of ramjet engines are then explored, and guidelines for their design are presented, including flame holders, injectors, and combustors. Finally, the book concludes with a discussion of the types of materials which should be used for ramjet engines. This book is of interest to engine designers and engineers, researchers, and graduate students, as it collates research in a succinct, clear guide to the issue of designing ramjet engines.