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Two-Dimensional Flow and NOx Emissions in Deflagrative Internal Combustion Wave Rotor Configurations
Two-Dimensional Flow NOx Emissions
2014/11/13
A wave rotor is proposed for use as a constant volume combustor. A novel design feature is investigated as a remedy for hot gas leakage, premature ignition, and pollutant emissions that are possible i...
Leakage Assessment of Pressure-Exchange Wave Rotors
Pressure-Exchange Wave Rotors Leakage Assessment
2014/11/13
Control of leakage within wave rotors is recognized as a key requirement for efficient operation. Previous studies suggest that experimentally observed performance degradation is substantially due to ...
A Review of Wave Rotor Technology and Its Applications
Applications Wave Rotor Technology
2014/11/13
The objective of this paper is to provide a succinct review of past and current research in developing wave rotor technology. This technology has shown unique capabilities to enhance the performance a...
Review of Recent Developments in Wave Rotor Combustion Technology
Wave Rotor Combustion Technology Review
2014/11/13
For some decades, efforts have been made to exploit nonsteady combustion and gas dynamic phenomenon. The theoretical potential of nonsteady-flowmachines has led to the investigation of various oscilla...
Performance Enhancement of Microturbine Engines Topped With Wave Rotors
Wave Rotors Performance Enhancement
2014/11/13
Significant performance enhancement of microturbines is predicted by implementing various wave-rotor-topping cycles. Five different advantageous cases are considered for implementation of a four-port ...
Air-Standard Aerothermodynamic Analysis of Gas Turbine Engines With Wave Rotor Combustion
Air-Standard Aerothermodynamic Gas Turbine Engines
2014/11/13
The wave rotor combustor can significantly improve gas turbine engine performance by implementing constant-volume combustion. The periodically open and closed combustor complicates thermodynamic analy...
A procedure to design a preliminary wave rotor cycle for any application is presented. To complete a cycle with heat addition there are two separate-but related-design steps that must be performed. Se...
Longitudinally Stratified Combustion in Wave Rotors
Longitudinally Stratified Combustion Wave Rotors
2014/11/13
A wave rotor may be used as a pressure-gain combustor, effecting wave compression and expansion, and intermittent confined combustion, to enhance gas-turbine engine performance. It will be more compac...
Assessment of Combustion Modes for Internal Combustion Wave Rotors
Combustion Modes Internal Combustion Wave Rotors
2014/11/13
Combustion within the channels of a wave rotor is examined as a means of obtaining pressure gain during heat addition in a gas turbine engine. Three modes of combustion are assessed: premixed autoigni...
A Numerical Investigation of Premixed Combustion in Wave Rotors
Premixed Combustion Wave Rotors
2014/11/13
Wave rotor cycles that utilize premixed combustion processes within the passages are examined numerically using a one-dimensional CFD-based simulation. Internal-combustion wave rotors are envisioned f...
Wave Cycle Design for Wave Rotor Gas Turbine Engines with Low NOx emissions
Wave Cycle Design Wave Rotor Gas Turbine Engines
2014/11/13
The wave rotor is a promising means of pressure-gain for gas turbine engines. This paper examines novel wave rotor topping cycles that incorporate low-NOx combustion strategies. This approach combines...
Modified Through-Flow Wave-Rotor Cycle with Combustor-Bypass Ducts
Combustor-Bypass Ducts Through-Flow Wave-Rotor Cycle
2014/11/13
A wave-rotor cycle is described that avoids the inherent problem of combustor exhaust gas recirculation (EGR) found in four-port, through-flow (uniflow) pressure-gain wave-rotor cycles currently under...
Two-dimensional flow and NOx emissions in deflagrative internal combustion wave rotor configurations
Two-dimensional flow NOx emissions internal combustion wave rotor configurations
2009/12/23
A wave rotor is proposed for use as a constant volume combustor. A novel design feature
is investigated as a remedy for hot gas leakage, premature ignition, and pollutant emissions
that are possible...
Effects of dielectric permittivities on skin heating due to millimeter wave exposure
dielectric permittivities skin heating millimeter wave exposure
2010/2/25
This paper analytically clarified the effects of dielectric permittivities on the thermally steady state temperature elevation and the temperature difference in the skin of a one-dimensional three-lay...
Development of Microcapsule for a Shock Wave Drug Delivery Systems and Its Design
shock wave drug delivery system microcapsule bubble visco-elasticity
2009/6/9
This paper describes the development of microcapsules with high disintegration rate efficiency for drug delivery systems (DDS) using shock waves and the design of the microcapsules. The microcapsules,...