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Wednesday, July 29, 2020 | History

3 edition of Numerical simulation of the effect of heating on supersonic jet noise found in the catalog.

Numerical simulation of the effect of heating on supersonic jet noise

Numerical simulation of the effect of heating on supersonic jet noise

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  • 32 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Jet aircraft noise.,
  • Aeroacoustics.,
  • Sound generators.,
  • Sound propagation.,
  • Numerical analysis.,
  • Computerized simulation.

  • Edition Notes

    StatementR. Hixon and S.-H. Shih, Reda R. Mankbadi.
    SeriesNASA contractor report -- 202338., NASA contractor report -- NASA CR-202338.
    ContributionsShih, S.-H., Mankbadi, R. R., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17697880M

    () Flow structures and noise from a supersonic impinging jet. International Journal of Numerical Methods for Heat & Fluid Flow , () A scalable fully implicit method with adaptive time stepping for unsteady compressible inviscid by: The implementation of advanced low-emission aircraft engine technologies and the reduction of noise from airframe, fan, and jet exhaust have made noise contributions from an engine core increasingly important. Therefore, meeting future ambitious noise-reduction goals requires the consideration of engine-core noise. This article reviews progress on the fundamental understanding, experimental Cited by:

    Effect of deposition parameters on the wettability and microstructure Structural, mechanical and tribological investigations of sputter deposited October(4) New Approaches for Analysis of Jet Noise Data; Influence of zirconia incorporation on the mechanical and chemical properties of Ni- Co alloys. Pulse detonation engines (PDEs) are new exciting propulsion technologies for future propulsion applications. The operating cycles of PDE consist of fuel-air mixture, combustion, blowdown, and purging. The combustion process in pulse detonation engine is the most important phenomenon as it produces reliable and repeatable detonation waves. The detonation wave initiation in detonation tube in Cited by:

    AIAA Excel/VBA for Numerical Methods Education, Calculations and Applications in Energy Engineering Effect of a Wedge on Coannular Jet Noise (AIAA ) Zaman, K. B. M. Q. / Papamoschou, Simulation of a Supersonic Jet Controlled by Plasma Actuators by the CESE Method (AIAA ) He, H. / Yu. A PIV study of supersonic impinging jet; (4) October(4) Experimental Study on the Noise Characteristics of Notched Circular-Slot Jets; Flow and Noise Characteristics of Notched Elliptic-Orifice Jets; Experiments of a plume with off-source heating; The reduction in mingling with ambient fluid in a jet with off-source heating; (1) October(1).


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Numerical simulation of the effect of heating on supersonic jet noise Download PDF EPUB FB2

Get this from a library. Numerical simulation of the effect of heating on supersonic jet noise. [R Hixon; S -H Shih; R R Mankbadi; United States. National Aeronautics and Space Administration.]. A three-dimensional numerical simulation of an integrated deflector under periodical impingement of a supersonic high-temperature air jet was conducted on the basis of the Renormalized Group (RNG.

The peak noise of the hot jet is thus approximately 10dB higher than the peak noise of the cold jet. CONCLUSION. In this paper we have used Direct Numerical Simulation (DNS) to study the sound field of a heated jet and compared it with the sound field of a cold : Bendiks Jan Boersma. This study investigates the effect of substrate size on the supersonic jet flow regime, particle acceleration and temperature distribution within the substrate in cold spraying.

Effectiveness of Fluid Injection on Supersonic Jet Noise at High Exhaust Temperatures. Chitrarth Prasad and; Philip J. Morris Acoustic Experiment and Numerical Simulation on Unheated Supersonic Jet Flow for a Small-scale Nozzle.

Seung Hoon Kang, HyunShik Joo Effect of Flow Three Dimensionality on Interaction Length in Shockwave. Effects of heating on noise radiation from a two-dimensional mixing layer: direct computation and acoustic analogy predictions Investigation of high supersonic jet noise: non-linear propagation effects and flow-acoustics correlations.

Numerical Simulation of Broadband Noise from. Hixon has written: 'Numerical simulation of the effect of heating on supersonic jet noise' -- subject(s): Numerical analysis, Aeroacoustics, Computerized simulation, Sound generators, Sound.

The companion experiments, whose measurements are used to assess the quality of the numerical simulations, are performed in an anechoic jet facility. The facility includes a forward flight stream and uses helium-air mixtures to simulate the effects of jet heating.

Flow and noise measurements are described for both baseline and chevron : Philip J. Morris, Dennis K. McLaughlin, Yongle Du, Ching-Wen Kuo. Large-eddy simulation for supersonic rectangular jet noise prediction: effects of chevrons.

In18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference) (p. (Download link) - Kovasznay LS. Turbulence in Supersonic Flow, Journal of. Noise and Innovative Noise Reduction Approaches (9) Numerical Simulation of Turbulent Flows in Centrifugal Compressor Stages With Different Radial Gaps.

Part 2 — Effect of the Inducer Shroud Bleed and Development of a Low Energy Region Along the Shroud. numerical simulation of broadband shock-associated noise from a circular supersonic jet Gao, J. / Li, X. / American Institute of Aeronautics and Astronautics | print version.

Numerical experiments using reduced models of the actuator are designed to assess the respective role of the the cavity, the vertical ejection of fluid from the cavity, and the direct effect of thermal actuation on the flow.

An actuator placed above the nozzle wall without a cavity is Cited by: Influence of Microjet Condition on Characteristics of Supersonic Jet Noise and Flow Field. Ryuichi Okada Numerical Simulation of Propulsion System Integration for Very High Bypass Ratio Engines Air Preheat Temperature and the Fuel Preheat Temperature in the Adiabatic Flame Temperature for Gaseous Fuels of Low Heating Value.

The effect of the turbulence intensity level and its cross-stream distribution at the inlet on the numerical prediction of the heat transfer in a two-dimensional turbulent-wall jet was investigated.

The investigation was carried out within the framework of the standard kappa-epsilon turbulence model. The 24th International Symposium on Shock Waves (ISSW24) was held at the Beijing Friendship Hotel during July, in Beijing. It was a great pleasure for the Local Organizing Committee to organize the ISSW in China for the first time, because forty-seven years have passed since the First.

AbstractControl of Mach elliptic jet with ventilated triangular tabs is studied experimentally, in the presence of different levels of pressure gradient at the nozzle exit. Three different sets of ventilated tabs with circular, triangular and trapezoidal ventilations were studied.

Two tabs were placed, at the ends of major and minor axes, at the exit of the elliptic nozzle of aspect ratio Cited by: 1. The supersonic core of the HVOF jet dissipates rapidly due to the, mixing, so that the jet is no longer supersonic when it impinges upon the target surface being sprayed.

Secondary issues also observed in this study include strong jet-noise radiation from the HVOF plume and the entrainment and induced bulk motion of the surrounding air. The subject of this article is a take-off performance and noise assessment of a notional supersonic business jet.

Analytical models of an airframe and a supersonic engine derived from a contemporary subsonic turbofan core are developed. These models are used to predict take-off trajectories and certification noise levels. Direct numerical simulation on stability of a supersonic mixing layer flow Q.

Shen, F. Guan, F. Zhuang, Q. Wang () Effect of ablation on heat transfer. In this zone, according to the results of acoustic measurements in the T jet unit, acoustic noise are mostly generated. Thus, both the results of numerical simulation and the experimental findings indicate that in this zone the jet loses its kinetic energy which is expended on Cited by: 8.

The book is intended for a wide range of specialists engaged in the development and production of heavy-duty metal structures, as well as students, undergraduates, graduate and postgraduate students of technical colleges and universities.

is a registered brand of Trans Tech Publications Ltd. () Effect of thermocapillary convection in an industrial Czochralski crucible: numerical simulation. International Journal of Heat and Mass Transfer() Investigation of wall-function approximations and subgrid-scale models in large eddy simulation of separated flow in a channel with streamwise periodic by: This book collects peer-reviewed papers from the Asia-Pacific International Symposium on Aerospace Technology (APISAT ) co-organized by four societies in China, Australia, Korea, and Japan and provides insights on the current and future advanced topics in aerospace engineering.