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3 edition of Numerical calculation of subsonic jets in crossflow with reduced numerical diffusion found in the catalog.

Numerical calculation of subsonic jets in crossflow with reduced numerical diffusion

Numerical calculation of subsonic jets in crossflow with reduced numerical diffusion

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Published by National Aeronautics and Space Administration in [Washington, D.C.] .
Written in English

    Subjects:
  • Jets.

  • Edition Notes

    StatementRussell W. Claus.
    SeriesNASA technical memorandum -- 87003.
    ContributionsUnited States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17673123M

    Experimental characterization and numerical simulation of a sooting lifted turbulent jet diffusion flame Combustion and Flame, Vol. , No. 8 An Experimental and Numerical Study of Heat Transfer From Arrays of Impinging Jets With Surface Ribs. Numerical study of the generation and propagation of entropy noise 2 nd Int. Conf. on Jets, Wakes and Separated Flows, ICJWSF September , Technical University of Berlin, Berlin, Germany M. Di Domenico, P. Gerlinger, M. Aigner Chemistry and turbulence effects on the numerical simulation of lifted H2/N2 flames in vitiated coflow.

    The Knoller & Benz effect was discovered in the early s, in which the flapping airfoil generates aerodynamic thrust force [1, 2].Birnbaum introduced the reduced frequency k that can characterize the flight efficiency using the linear potential theory, and identified that the vortex shedding in the trailing edge is an important factor. Garrick conducted research to obtain the thrust and Cited by: 1. Triple-deck and direct numerical simulation analyses of high-speed subsonic flows past a roughness element - Volume - G. Mengaldo, M. Kravtsova, A. I. Ruban, S. J. SherwinCited by: 7.

      Near-Wall Modeling of Turbulent Convective Heat Transport in Film Cooling of Turbine Blades With the Aid of Direct Numerical Simulation Data Djamel Lakehal. strategy of Lakehal et al. developed for calculating jets in crossflow. of the temperature field be well predicted and the strength of the secondary vortices reduced. Furthermore Cited by: To accelerate convergent of numerical solution of the main equations, suitable boundary conditions could be used. To do so, the follow equations, are the primary conditions of supersonic-subsonic flow [1]. 1 x, T 1 x, V ( x)T (16)Author: Ali Kargar.


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Numerical calculation of subsonic jets in crossflow with reduced numerical diffusion Download PDF EPUB FB2

Get this from a library. Numerical calculation of subsonic jets in crossflow with reduced numerical diffusion. [Russell W Claus; United States. National Aeronautics and Space Administration.]. Numerical calculation of subsonic jets in crossflow with reduced numerical diffusion.

By R. Claus. Abstract. A series of calculations are reported for two, subsonic jet in crossflow geometries. The parametric variation examined are the lateral spacing of a row of jets. The first series of calculations corresponds to a widely space jet Author: R. Claus. NUMERICAL CALCULATION OF SUBSONIC JETS IN CROSSFLOW WITH REDUCED NUMERICAL DIFFUSION Russell W.

Claus Natlonal Aeronautlcs and Space Admlnlstratlon LeW1S Research Center Cleveland, OhlO Abstract A serles of calculatlons are reported for two, expenmentally studled, subsonlc Jet In crossflow geometrles.

International Journal for Numerical Methods in Fluids4, 14 Claus, R. Numerical calculation of subsonic jets in crossflow with reduced numerical diffusion. NASA TM15 McDonnel, V. G., Wood, C. P., and Samuelsen, G. Detailed data set: two component gas and particle velocity statistics in a particle laden jet by: Simplified method of numerical calculation of a three-dimensional turbulent free jet.

Authors; “Numerical calculation of subsonic jets in cross flow with reduced numerical diffusion,” AIAA Paper, No. Kuznetsov, A. Lebedev, A. Sekundov, and I.

Smirnova, “Calculation of a turbulent diffusion flame with Author: V. Kozlov. For both of the subsonic and the supersonic conditions, with the increase of the inclination angle, the velocity on the upstream side of the jet exit can be reduced significantly by the strengthened blocking-effect of the cross-flow.

The larger the inclination angle, the more non-uniform the flow at the by:   The jet in crossflow, or transverse jet, is a flowfield that has relevance to a wide range of energy and propulsion systems.

Over the years, our group's studies on this canonical flowfield have focused on the dynamics of the vorticity associated with equidensity and variable density jets in crossflow, including the stability characteristics of the jet's upstream shear layer, as a means of Cited by: Three-dimensional compressible jet-in-crossflow calculations using improved viscosity models and adapted grid.

Numerical calculation of subsonic jets in crossflow with reduced numerical diffusion. These numerical schemes were used in the DNS of subsonic round jet [31], diffusion jet flame [26], and supersonic planar jets [12,32], which succeeded in reproducing the statistics in consistent.

Numerical modelling of release of subsonic and sonic hydrogen jets. In order to initialise the jet for the AEROPLUME calculation, FRED first calculates the mass flow rate and the conditions at the expanded diameter. Ethan S. Hecht, David M.

ChristopherValidation of a reduced-order jet model for subsonic and under-expanded hydrogen jets Author: Pratap Sathiah, Chris M. Dixon. Sufficient mixing between the supersonic airstream and the injectant is critical for the design of scramjet engines. The information in the two-dimensional supersonic jet-to-crossflow flow field has been explored numerically and theoretically, and the numerical approach has been validated against the available experimental data in the open by: LiuYang et al.

[8] used the same numerical calculation method to perform numerical verification on subsonic-supersonic shear mixing flow at normal temperature. The final numerical calculation results are in good agreement with the experimental results, which proved that the numerical calculation method based on OpenFOAM computing platform is File Size: 1MB.

In the present paper, the influence of shock wave position on sonic transverse hydrogen micro-jets in supersonic crossflow is investigated. This study focuses on mixing and shock interaction of the hydrogen jet in a Mach crossflow with various jet conditions. Flow structure and fuel/air mixing mechanism were investigated by:   Direct numerical simulation(DNS) of spatially developing round turbulent jet flow with Reynolds number 4, was carried out.

Over 20 million grid points were used in this simulation. Fully compressible three-dimensional Navier–Stokes equations were solved. High order explicit spatial difference schemes and Runge–Kutta time integration scheme were used to calculate derivatives and Cited by: The gas-liquid interaction process of a liquid jet in supersonic crossflow with a Mach number of was investigated numerically using the Eulerian-Lagrangian method.

In this study, analysis of flow properties around a sphere and its aerodynamic coefficients in the high-Mach-and-low-Reynolds-numbers conditions is carried out by direct numerical simulations solving the three-dimensional compressible Navier–Stokes equations.

The calculation is performed on a boundary-fitted coordinate system with a high-order scheme of sufficient by: The model is applied to the configuration of a round jet exhausting perpendicularly through a flat plate into a uniform crossflow for a range of jet-to-crossflow velocity ratios from 3 to It is demonstrated that the model is capable of describing the measured pressure distribution on the flat plate with model parameters that are compatable Cited by: 7.

Large Eddy Simulation of liquid jet primary breakup in supersonic air crossflow. for convenience in numerical calculation, in simulations of single-phase jet in crossflow shown in the. For numerical stability, a minimum level of numerical diffusion or artificial viscosity is to be added to the central discretization of the flux terms [11, 17].

Although the upwind schemes are the natural choices for high-speed flow computations, the central schemes also bear some advantages like algorithmic simplicity and easier Cited by: 5.

Abstract. A physical and mathematical model of turbulent combustion of subsonic gas fuel jet flows flowing into an air space is proposed.

The processes are described by averaged equations of the boundary layer with a turbulent viscosity model and a combustion diffusion by: 1. The jet in crossflow, or transverse jet, is a flowfield that has relevance to a wide range of energy and propulsion systems.

Over the years, our group's studies on this canonical flowfield Author: Ann Karagozian.1 DIRECTIVITY ANALYSIS OF SOUND IN TURBULENT EXHAUST JETS WITH LAMINAR CROSS-FLOW: A NUMERICAL STUDY Orddom Y Leav1, Benjamin S Cazzolato1 and Carl Q Howard1 1School of Mechanical Engineering University of Adelaide Australia, Adelaide SAAustralia.Numerical Computation of Compressible and Viscous is written for those who want to calculate compressible and viscous flow past aerodynamic bodies.

As taught by Robert W. MacCormack at Stanford University, it allows readers to get started in programming for solving initial value problems/5(2).