Combined Numerical and Experimental Investigation of a 15-cm Valveless Pulsejet

  title={Combined Numerical and Experimental Investigation of a 15-cm Valveless Pulsejet},
  author={Tao Geng and M. A. Schoen and Andrey V. Kuznetsov and William L. Roberts},
  journal={Flow, Turbulence and Combustion},
The pulsejet, due to its simplicity, may be an ideal micro propulsion system. In this paper, modern computational and experimental tools are used to investigate the operation of a 15-cm overall length valveless pulsejet. Gas dynamics, acoustics and chemical kinetics are studied to gain understanding of various physical phenomena affecting pulsejet operation, scalability, and efficiency. Pressure, temperature, thrust, and frequency are measured as a function of valveless inlet and exit lengths… 
A New Acoustic Model for Valveless Pulsejets and Its Application to Optimization Thrust
Due to its simplicity, the valveless pulsejet may be an ideal low cost propulsion system. In this paper, a new acoustic model is described, which can accurately predict the operating frequency of a
Comparison Between Numerically Simulated and Experimentally Measured Flowfield Quantities Behind a Pulsejet
Pulsed combustion is receiving renewed interest as a potential route to higher performance in air breathing propulsion and ground based power generation systems. Pulsejets offer a simple experimental
Dependence of Pressure, Combustion and Frequency Characteristics on Valved Pulsejet Combustor Geometries
An experimental analysis of valved pulsejets based on the Curtis-Dyna design and the concomitant results are discussed in the current paper. By altering the combustor length, the tail pipe length and
The pulsejet is of both fundamental interest due to the complex interactions between the fluid mechanics, acoustics, and chemical kinetics, as well as practical interest for low-cost, scalable, high
Numerical Investigation of Components Length of China-Type Valveless Pulsejet
An investigation is conducted in order to understand how china-type pulsejet performance depends on the length of tail and the combustor, by utilizing numerical simulation of multi-cycle working process in such pulsejets.
Modeling of a self-excited pulse combustor and stability analysis
The major bottleneck for popularization and utilization of the conventional mechanical valve pulse combustors is the self-priming mode of gas supply. An aerodynamic valve (as against mechanical
Temperature Oscillations in the Wall of a Cooled Multi Pulsejet Propeller for Aeronautic Propulsion
Environmental and economic issues related to the aeronautic transport, with particular reference to the high-speed one are opening new perspectives to pulsejets and derived pulse detonation engines.
Thermodynamic analysis and preliminary design of the cooling system of a pulsejet for aeronautic propulsion
This paper is a preliminary step through an effective redesign of valved pulsejet. This redesign activity relates to both thermodynamics and heat transfer. It aims to overcome their intrinsic limits:
Numerical Comparison between Two Tailpipe Shapes of Valved Pulsejet Engine
In this article, the valved pulsejet engine has been numerically investigated using Ansys/fluent (CFD) program. The designed model has a 1400 cm length and 17 cm combustion chamber diameter connected


Computational analysis of the feasibility of a micro-pulsejet☆
Improvements to the Performance of a Prototype Pulse, Pressure-Gain, Gas Turbine Combustor
A description is given of a simple, prototype, pulse, pressure-gain combustor for a gas turbine. The work reported was targeted at alleviating problems previously observed with the prototype
High Power Density Silicon Combustion Systems for Micro Gas Turbine Engines
As part of an effort to develop a microscale gas turbine engine for power generation and micropropulsion applications, this paper presents the design, fabrication, experimental testing, and modeling
High Power Density Silicon Combustion Systems for Micro Gas Turbine Engines
As part of an effort to develop a micro-scale gas turbine engine for power generation and micro-propulsion applications, this paper presents the design, fabrication, experimental testing, and
Combustors for micro-gas turbine engines
The development ofa hydrogen-air microcombustor is described. The combustor is intended for use in a 1 mm 2 inlet area, micro-gas turbine engine. While the size of the device poses several
Simplified Reaction Mechanisms for the Oxidation of Hydrocarbon Fuels in Flames
Abstract Simplified reaction mechanisms for the oxidation of hydrocarbon fuels have been examined using a numerical laminar flame model. The types of mechanisms studied include one and two global