3 edition of Numerical study of unsteady shockwave reflections using an upwind TVD scheme found in the catalog.
Numerical study of unsteady shockwave reflections using an upwind TVD scheme
by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC], [Springfield, Va
Written in English
|Statement||Andrew T. Hsu and Meng-Sing Liou.|
|Series||NASA technical memorandum -- 103251.|
|Contributions||Liou, M. S., United States. National Aeronautics and Space Administration.|
|The Physical Object|
TVD-VC scheme. Before introducing the new second order TVD-VC scheme, some preliminary facts, helpful for the exposition, will be reviewed. Some preliminaries. First order upwind scheme. Denote the flux Jacobian evaluated at the cell face i + 1 / 2 (12) A = F u ′ | x = x i + 1 / 2 and the matrix of its right eigenvectors R. The paper is devoted to a combined—analytical, numerical, and experimental—study of initially planar shock reflection from a full concave cylindrical surface with the emphasis on the transition from inverse Mach reflection to transitioned regular reflection.
The present authors - have recently developed a directional multigrid strategy for viscous hypersonic flows, and have shown that convergence is affected primarily by the prolongation oper- ator. The directionality character of the latter is necessary when using a high-order upwind-biased total variation diminishing scheme. () A simple numerical scheme for the 3-D system of ideal gases and a study of approximation in the sense of distributions. Journal of Computational and Applied Mathematics , () A Direct Solver for Initial Value Problems of Rarefied Gas Flows of Arbitrary Statistics.
Fig. 3 displays the numerical results for the evolution of enstrophy for three values of viscosity, ν=,, and 0 m 2 s −1 (as indicated in Fig. 3).Simulations with MPDATA (and the nonoscillatory semi-Lagrangian option of this model) follow precisely the 3 pseudo-spectral simulations of Herring and lines are for MPDATA experiments and dashed lines for semi. In this work, the dynamic combustion characteristics in a scramjet engine were investigated using three diagnostic data analysis methods: DMD (Dynamic Mode Decomposition), STFT (Short-Time Fourier Transform), and CEMA (Chemical Explosive Mode Analysis). The data for the analyses were obtained through a 2D numerical experiment using a DDES (Delayed Detached Eddy Simulation) turbulence .
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Numerical Study of Unsteady Shockwave Reflections Using an Upwind TVD Scheme Andrew T. Hsu Sverdrup Technology, Inc. Lewis Research Center Group Brook Park, Ohio and Meng-Sing Liou National Aeronautics and Space Administration Lewis Research Center Cleveland, Ohio August NIA U _/ 0,2 NY1-I Get this from a library.
Numerical study of unsteady shockwave reflections using an upwind TVD scheme. [Andrew T Hsu; Meng-Sing Liou; United States. Numerical study of unsteady shockwave reflections using an upwind TVD scheme.
By Andrew T. Hsu and Meng-Sing Liou. Abstract. An unsteady TVD Navier-Stokes solver was developed and applied to the problem of shock reflection on a circular cylinder. The obtained numerical results were compared with the Schlieren photos from an experimental : Andrew T.
Hsu and Meng-Sing Liou. The total variation diminishing (TVD) is a most popular scheme which is usually used in combination with other scheme.
Therefore, this study develops CFD code by using Runge-Kutta which based on. Unsteady transition from a Mach to a regular shockwave intersection In the present study numerical simulations are performed for transient supersonic flow, tracing the transition velocity coupling . First order upwind scheme was used for the convective terms and central for the diffusion terms.
The temporal discretization was also. This article deals with the study of the development and application of the high-order upwind ADBQUICKEST scheme, an adaptative bounded version of the QUICKEST for unsteady problems (Commun. Numer. An upwind and a symmetric finite difference TVD scheme have been extended to cell-centered finite volume methods.
These newly extended schemes have be. Raif, Markus, Mayer, Jürgen F., and Stetter, Heinz. "Comparison of a TVD-Upwind Scheme and a Central Difference Scheme for Navier-Stokes Turbine Stage Flow Calculation." Proceedings of the ASME International Gas Turbine and Aeroengine Congress and Exhibition.
Volume 1: Turbomachinery. Birmingham, UK. June 10–13, VT01A ASME. For achieving this goal, we have described in  a high degree polynomial upwind-based TVD (Total Variation Diminishing) finite difference scheme, called TOPUS (Third-Order Polynomial Upwind.
() TVDal: Total variation diminishing scheme with alternating limiters to balance numerical compression and diffusion. Ocean Modelling() Optimizing computational high-order schemes in finite volume simulations using unstructured mesh and topological data structures.
A novel approach based on the use of a 1D unsteady flow numerical model to simulate in detail transport processes upstream from slit-check dams during flood events is presented in this paper. Numerical simulations have been performed to study regular and Mach reflections of oblique shock waves (SW) in a steady supersonic flow of a homogeneous combustible gas mixture and different.
The objective of the present study is to obtain a prospect on the Mach reflection process around the surface in relatively weak shock cases. Second-order explicit upwind TVD scheme is used to solve the time-dependent Euler equations of gas dynamics written in a conservation-law form and generalizedbody-fitted coordinate system.
Brown28 extended a first-order explicit TVD upwind scheme for investigating chemically reacting flows. A fourth-order Runge-Kutta time-differencing of the source terms was employed to enhance the numerical stability and the gas-dynamic and species conservation equations were solved in a fully coupled (simultaneous) manner.
Andrew T. Hsu has written: 'Numerical study of unsteady shockwave reflections using an upwind TVD scheme' -- subject(s): TVD schemes, Computer. Spurious oscillation of finite difference solutions near shock waves and a new formulation of “TVD” scheme.
11th International Conference on Numerical Methods in Fluid Dynamics, Numerical study of unsteady viscous hypersonic blunt body flows with an impinging shock.
11th International Conference on Numerical Methods in Fluid. The upwind-differencing first-order schemes of Godunov, Engquist–Osher and Roe are discussed on the basis of the inviscid Burgers equations. The differences between the schemes are interpreted as differences between the approximate Riemann solutions on which their numerical.
Hybrid upwind methods for the simulation of unsteady shock-wave diffraction over a cylinder Computer Methods in Applied Mechanics and Engineering, Vol.
No. A kinetic flux splitting method for gas dynamics based on beam scheme. Numerical simulation of unsteady flow in a ramjet inlet. On the Relation Between the Upwind-Differencing Schemes of Godunov, Engquist-Osher and Roe.
Numerical simulation of blast flow fields using a high resolution tvd finite volume scheme. Computers and Fluids, 18 (1), Google Scholar. Cite this paper as: Aki T. () Computation of unsteady shock wave motion by the modified flux TVD scheme.
In: Zhuang F.G., Zhu Y.L. (eds) Tenth International Conference on Numerical Methods in. In part 2, a domain decomposition hybrid method, combining the finite-difference and vortex methods for numerical simulation of unsteady viscous separated flow around a bluff body, is introduced.
By the new method, some high resolution numerical visualization on near wake evolution behind a circular cylinder at Re=10 2, 10 3 and 3×10 3 are shown.
() Numerical problems in semiconductor simulation using the hydrodynamic model: a second-order finite difference scheme. Journal of Computational Physics() Numerical investigation of interface region flows in mass spectrometers: ion transport.Simulations of unsteady shock wave reflections using adaptive unstructured grids.
Pages Numerical study of the transition from regular to mach reflection in steady supersonic flows. Investigation of 3D shock focusing effects with a TVD-upwind scheme for .