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3 edition of A gas-kinetic scheme for reactive flows found in the catalog.

A gas-kinetic scheme for reactive flows

A gas-kinetic scheme for reactive flows

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Published by Institute for Computer Applications in Science and Engineering, NASA Langley Research Center, National Technical Information Service, distributor in Hampton, VA, Springfield, VA .
Written in English

    Subjects:
  • Boltzmann transport equation.,
  • BGK model.,
  • Compressible flow.,
  • Degrees of freedom.,
  • Flow equations.,
  • Kinetic equations.,
  • Navier-Stokes equation.,
  • Reaction kinetics.

  • Edition Notes

    Other titlesA gas kinetic scheme for reactive flows.
    StatementYoug-Sheng Lian, Kun Xu.
    SeriesICASE report -- no. 98-55., [NASA contractor report] -- NASA/CR-1998-208963., NASA contractor report -- NASA CR-208963.
    ContributionsXu, Kun., Institute for Computer Applications in Science and Engineering.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL18132914M

    The kinetic theory of gases is a historically significant, but simple, model of the thermodynamic behavior of gases, with which many principal concepts of thermodynamics were model describes a gas as a large number of identical submicroscopic particles (atoms or molecules), all of which are in constant, rapid, random size is assumed to be much smaller than the. Gas-Kinetic Finite Volume Methods K. Xu, L. Martinelli, A. Jameson Department of M.A.E, Princeton University, Prificeton N.J. , USA 1 Introduction Gas-kinetic schemes developed from the BGK model have been successfully applied to 1-D and 2-D flows [1,2]. One of the advantages of the gas-kinetic approach over.

    Shock Interactions in Continuum and Rarefied Conditions Employing a Novel Gas-Kinetic Scheme. Numerical Simulation of Reactive Gas Mixes Flows in the Detonation Engine. Pages Martyushov, S. N. Book Title Shock Wave Interactions Book Subtitle. The full text of this article hosted at is unavailable due to technical difficulties.

    This volume comprises the proceedings of the 42nd National and 5th International Conference on Fluid Mechanics and Fluid Power held at IIT Kanpur in December, The conference proceedings encapsulate the best deliberations held during the conference. The diversity of participation in the. Advogado’s number is also related to the Ideal Gas law. Also 1/N A=×10 −24gms Mass of the proton=×gms Then the number of molecules or atoms is. Ideal Gases Experiment shows that 1 mole of any gas, such as helium, air, hydrogen, etc at the same volume and temperature has almost theFile Size: 7MB.


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A gas-kinetic scheme for reactive flows Download PDF EPUB FB2

In this paper, the gas-kinetic BGK scheme for the compressible flow equations is extended to chemical reactive flow. The mass fraction of the unburnt gas is implemented into the gas kinetic formulation by assigning a new internal degree of freedom to the particle distribution by: 9.

COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.

This paper concerns the extension of the multicomponent gas-kinetic BGK-type scheme to chemical reactive flow calculations. In the kinetic model, each component satisfies its individual gas-kinetic Bhatnagar–Gross–Krook (BGK) equation, and the equilibrium states of both components are coupled in space and time due to the momentum and energy exchange in the course of particle by: in the kinetic scheme, both the robustness and accuracy of the scheme can be maintained [10].

In this paper, wc cxtend the gas-kinetic BGK scheme for the nonreactive compressible Euler equations to the reactive flows. In order to implement the mass fraction into the kinetic formulation, one new internalCited by: 9. A GAS-KINETIC SCHEME FOR MULTIMATERIAL FLOWS AND ITS APPLICATION IN CHEMICAL REACTION* YONGSHENG LIAN t AND KUN XU$ Abstract.

This paper concerns the extension of the multicomponent gas-kinetic BGK-type scheme [26] to multidimensional chemical reactive flow calculations.

In the kinetic model, each component satisfies its. Numerical methods for the Baer–Nunziato (BN) two-phase flow model have attracted much attention in recent years.

In this paper, we present a new gas kinetic scheme for the BN two-phase flow. The generalized Riemann problem (GRP) scheme for the Euler equations and gas-kinetic scheme (GKS) for the Boltzmann equation are two high resolution shock capturing schemes for fluid simulations. The difference is that one is based on the characteristics of the inviscid Euler equations and their wave interactions, and the other is based on the.

In this paper, a gas-kinetic model and the corresponding kinetic scheme for the evaluation of the numerical flux function will be presented. The source term S–Wjƒin the above equation is treated implicitly for the update of flow variables Wj inside each cell [16]. A gas-kinetic model A gas-kinetic BGK model for Eq.

A Gas-Kinetic Scheme for Multimaterial Flows and Its Application in Chemical Reactions Y. Lian and K. Xu1 it is well recognized that a good scheme for reactive flow must be able to capture the 2-D Multicomponent BGK Scheme Gas-kinetic governing equations.

The focus of Cited by: “A Gas-kinetic Scheme for Reactive Flows,” NASA/CR, ICASE Report No. Lian, Y., and Xu, K., “A Gas-Kinetic Scheme for Multimaterial Flows and Its Application in Chemical Reaction,” NASA/CR, ICASE Report In current paper, a CFD solver based on a fifth-order WENO scheme is developed for the simulation of nonequilibrium and reactive high-speed flows, as part of the ADPDIS3D computer code package.

of three-dimensional compressible flows with the gas-kinetic BGK method. This is the first time that the gas-kinetic BGK scheme has been used for three-dimensional flows, and the results show that the BGK scheme provides a very good tool for solving multidimensional flows, especially for flows with strong shock waves.

The shock-capturing. @article{osti_, title = {A unified gas-kinetic scheme for continuum and rarefied flows IV: Full Boltzmann and model equations}, author = {Liu, Chang and Xu, Kun and Sun, Quanhua and Cai, Qingdong}, abstractNote = {Fluid dynamic equations are valid in their respective modeling scales, such as the particle mean free path scale of the Boltzmann equation and the hydrodynamic scale of the.

This property makes them suitable for shock-capturing and rarefied flow. Gas-kinetic scheme may be coupled to a conventional RANS turbulence model; it is shown that the turbulent stress tensor is naturally adjusted as a function of the unresolved-to-resolved scales ratios and achieves a higher physical consistency than conventional by:   The unified gas kinetic scheme (UGKS) is based on direct modeling of gas dynamics on the mesh size and time step scales.

With the modeling of particle transport and collision in a time-dependent flux function in a finite volume framework, the UGKS can connect the flow physics smoothly from the kinetic particle transport to the hydrodynamic wave by: In the past years, he has been working on the multiscale unified gas-kinetic scheme (UGKS) and applied to the fields of plasma, multiphase flow, etc.

Recently, Dr. Liu develops the unified gas-kinetic wave-particle (UGKWP) method, which is highly efficient for multiscale flow. The scheme has been tested for various test cases and Mach numbers proving to produce reliable predictions in agreement with other approaches for near-continuum flows.

Finally, the performance of the scheme, in terms of memory and computational time, compared to discrete velocity methods makes it a compelling alternative in place of more Cited by: 1. An upwind second-order scheme is proposed for time-dependent, inviscid, compressible fluid flow in one space dimension and variable cross-section.

The basic ingredient of the method is an analytic solution of the corresponding GRP (Generalized Riemann Problem), leading to explicit expressions for the fluxes. Sonic lines are given a special by: A simple second order accurate and fully Eulerian numerical method is presented for the simulation of multifluid compressible flows, governed by the stiffened gas equation of state, in hydrodynamic regime.

Our numerical method relies on a second order Godunov-type scheme, with approximate Riemann solver for the resolution of conservation equations, and a set of nonconservative by: An alternative approach is the uni¦ed gas-kinetic scheme (UGKS) [17,18] which uses a ¦nite-volume method where the numerical §uxes are based on the solution of the Shakhov model [6] for a monoatomic gas or the Rykov model [7] for a diatomic gas with rotational nonequilibrium.

Where the §ow is under. Cite this article: XU Kun,CHEN Songze. Gas kinetic scheme in hypersonic flow simulation[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA,36(1): This paper is about the application of a gas-kinetic scheme based on the Bhatnagar-Gross-Krook (BGK) model for the Navier-Stokes equations in the study of hypersonic viscous flow.

In the laminar hypersonic viscous flow computations, complicated flow phenomena, i.e., shock boundary layer interaction, flow separation, and viscous/inviscid Author: Kun Xu, Meiliang Mao.An indispensable guide on how to construct, use, and interpret numerical simulations of reactive flows, this book will be welcomed by advanced undergraduate and graduate students, and a wide range of researchers and practitioners in engineering, physics, and chemistry.