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Wednesday, May 20, 2020 | History

2 edition of Modeling of three-dimensional mixing and reacting ducted flows found in the catalog.

Modeling of three-dimensional mixing and reacting ducted flows

S. W. Zelazny

Modeling of three-dimensional mixing and reacting ducted flows

by S. W. Zelazny

  • 172 Want to read
  • 11 Currently reading

Published by U.S. National Aeronautics and Space Administration, for sale by the National Technical Information Service in Washington, Springfield,Va .
Written in English

    Subjects:
  • Turbulence -- Mathematical models.,
  • Finite element method.

  • Edition Notes

    Bibliography : p. 53-55.

    StatementS. W. Zelazny, A. J. Baker, and W. L. Rushmore ; prepared by Bell Aerospace Company, Buffalo, N.Y., for Langley Research Center.
    SeriesNASA contractor report ; NASA CR-2661, NASA contractor report -- NASA CR-2661.
    ContributionsBaker, A. J., Rushmore, W. L., Bell Aerospace Corporation., Langley Research Center.
    The Physical Object
    Paginationvii, 94 p. :
    Number of Pages94
    ID Numbers
    Open LibraryOL18011422M

    C. Hounyevou Klotoé and E. Bourgeois, Three dimensional finite element analysis of the influence of the umbrella arch on the settlements induced by shallow tunneling, Computers and Geotechnics, /o, , (), ().Cited by:   Subgrid Scale Modeling of Turbulence for the Dynamic Procedure Using Finite Difference Method and Its Assessment on the Thermally Stratified Turbulent Channel Flow J. Appl. Mech (May, ) Comparison of Different Subgrid-Scale Models of Cited by: 4.

    Darbandi, M., Barezban, M. B., and Schneider, G. E., “Evaluating the Ability of SLW Model In Numerical Simulation of Radiative Turbulent Reacting Flow in Industrial Application,” ASME Paper no. FEDSM , Proceedings of the ASME 5th Joint US-European Fluids Engineering Summer Conference (FEDSM), July , , Montreal. A subgrid scale model for large eddy simulations of turbulent premixed combustion is developed and validated. The approach is based on the concept of artificially thickened flames, keeping constant the laminar flame speed s l 0. This thickening is simply achieved by decreasing the pre-exponential factor of the chemical Arrhenius law whereas the molecular diffusion is by:

    Full text of "NASA Technical Reports Server (NTRS) Studying Turbulence Using Numerical Simulation Databases. 4: Proceedings of the Summer Program" See other formats. Full text of "DTIC ADA Combustor Modelling" See other formats.


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Modeling of three-dimensional mixing and reacting ducted flows by S. W. Zelazny Download PDF EPUB FB2

Get this from a library. Modeling of three-dimensional mixing and reacting ducted flows. [S W Zelazny; A J Baker; W L Rushmore; Bell Aerospace Company.; Langley Research Center.]. This has motivated modeling and numerical simulation of supercritical mixing and combustion in laminar flows [1,2,3,4,5,6,7,8,9] and turbulent flows [10, 11, 12,13,14,15,16,17] as well as model Author: Josette Bellan.

Three dimensional Laser Doppler Velocimeter measurements of the velocity distribution in a supersonic jet mixing with a subsonic outer flow. Turbulent boundary-layer flows with hydrogen injection and combustion.

Modeling of three-dimensional mixing and reacting ducted flows. The flow and mixing characteristics of three-dimensional confined turbulent round opposing jets in a novel in-line mixer were examined numerically, using air as the working fluid.

MEM Gas Turbines & Jet Propulsion Credits. Covers fundamentals of thermodynamics and aerothermodynamics, and application to propulsion engines; thermodynamic cycles and performance analysis of gas turbines and air-breathing propulsion systems, turbojet, turboprop, ducted fan, ramjet, and ducted rocket; theory and design of ramjets, liquid and solid rockets, air-augmented rockets, and.

REFERENCES Conclusions A three-dimensional flow model for simulating complex, non-reacting flows in industrial furnaces has been developed, demonstrated, and evaluated. Computational fluid dynamics is a key element in the modeling of combustion by: 7.

@article{osti_, title = {Numerical approaches to combustion modeling. Progress in Astronautics and Aeronautics. Progress in Astronautics and Aeronautics. Vol. }, author = {Oran, E S and Boris, J P}, abstractNote = {Various papers on numerical approaches to combustion modeling are presented.

EPA/// December GROUNDWATER MODELING: AN OVERVIEW AND STATUS REPORT by Paul K.M. van der Heijde, Aly I. El-Kadi, and Stan A. Williams International Ground Water Modeling Center Holcomb Research Institute Butler University Indianapolis, Indiana CR Project Officer Joe R.

Williams Extramural Activities and Assistance Division R.S. Kerr Environmental. () Direct, high resolution, four‐dimensional measurements of the fine scale structure of Sc≫1 molecular mixing in turbulent flows. Physics of Fluids A: Fluid Dynamics() Lagrangian model simulations of molecular mixing, including finite rate chemical reactions, in a temporally developing shear by: American Institute of Aeronautics and Astronautics Sunrise Valley Drive, Suite Reston, VA   Present-day demands on combustion equipment are increasing the need for improved understanding and prediction of turbulent combustion.

Large eddy simulation (LES), in which the large-scale flow is resolved on the grid, leaving only the small-scale flow to be modeled, provides a natural framework for combustion simulations as the transient nature of the flow is by: Since combusting flows often make use of a recirculation zone to stabilize the flame and obviously the fuel and air mixing processes cannot be ignored, the flow cannot be rigorously described by anything less than the full Navier-Stokes equa- tions and these are derived from the conservation of mass.

momentum and energy (including chemical Cited by: @article{osti_, title = {Understanding the breakdown of classic two-phase theory and spray atomization at engine-relevant conditions}, author = {Dahms, Rainer N., E-mail: [email protected]}, abstractNote = {A generalized framework for multi-component liquid injections is presented to understand and predict the breakdown of classic two-phase theory and spray atomization at engine.

SIAM Journal on Scientific ComputingBB Abstract | PDF ( KB) () An adaptive Cartesian cut-cell/level-set method to simulate incompressible two-phase flows with embedded moving solid by: PVP - Tools and Techniques for Modeling SOFC Fuel Cell Performance p.

PVP - Three-Dimensional Modeling of a Medium Size Fuel Cell Stack: Thermal Effects and Electrical Performance p. PVP - Numerical Experiments for Flow. Unfortunately, this book can't be printed from the OpenBook.

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"Three Dimensional Viscous Flows with Large Secondary Velocity," ASME Symposium on Computation of Internal Flows: Methods and Applications, New Orleans, LA, Arabshahi, A., “Correlations for the Drag Coefficient of Blunt Circular Cylinders in Transonic Axial Flow,” Master’s Thesis, May The goal was to measure the mixing efficiency and shock loss of each pylon setup for comparison to the baseline condition of transverse injection without pylons.

Non-reacting flow was measured using intrusive and non intrusive techniques to obtain pitot pressure, total temperature, cone-static pressure and laser induced Raman spectroscopy to.

To illustrate this point, we consider a three-dimensional bathymetry with grids adaptively refined along the tidally generated internal waves to capture remote mixing in regions of wave focusing. The computational cost in this case is found to be nearly 25 times smaller than.

Zhang, Q. and Bodony, D. J., “Direct numerical simulation and analytical modeling of locally reacting, single degree of freedom acoustic liners with turbulent grazing flow”, AIAA PaperPresented at the 20th AIAA/CEAS Aeroacoustics Conference, Atlanta, GA, June.

Nevertheless, the effect of confinement on round flows is found to be very similar to that on planar flows and to act via the same physical mechanism. This paper examines density ratios from to and has important implications for the design of fuel injectors, which often employ confined shear flows at high Reynolds numbers and large.A numerical study of wave propagation in a confined mixing layer by eigenfunction expansions.

Physics of Fluids A: Fluid Dynamics (), 5 (6), pp. – Hu, F. Q., Jackson, T., Lasseigne, D., and Grosch, C. E. (). Absolute–convective instabilities and their associated wave packets in a compressible reacting mixing layer.G.

Shepherd, "The Structure and Dynamics of Reacting Two-Stream Plane Mixing Layers," in "Experimental Measurements and Techniques in Turbulent Reactive and Non-reactive Flows," ASME Special Publication AMD- () Azzazy, M., and J.

W. Daily, "The Effect of ReactiveAuthor: John W. Daily.