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Continuous front tracking with subcell resolution (1991)

Cooke, Charlie H. ; Chen, Tze-Jang

Springer

Journal of scientific computing 6 (1991), S. 269-282

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ISSN: 1573-7691

Keywords: Front tracking ; subgrid resolution ; Godunov scheme ; underwater explosion

Source: Springer Online Journal Archives 1860-2000

Topics: Computer Science

Notes: Abstract The objective of this research is development of front tracking methods that possess subgrid resolution capability. One envisions here continuous tracking of the front, as opposed to discrete (one grid point to the next) tracking, such as is provided by the random choice method. A front tracking scheme employing near-front cells which continuously evolve with time is developed. This scheme is applied to the problem of tracking a material interface in the underwater explosion problem.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01062813

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Comparison with experiment for TVD calculations of blast waves from a shock tube (1989)

Cooke, Charlie H. ; Fansler, Kevin S.

Chichester : Wiley-Blackwell

International Journal for Numerical Methods in Fluids 9 (1989), S. 9-22

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ISSN: 0271-2091

Keywords: Shock capturing ; Shock tube ; TVD scheme ; Compressible flow ; Fluid dynamics ; Comparison with experiment ; Engineering ; Engineering General

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Notes: Harten's second-order-accurate total-variation-diminishing (TVD) scheme is applied to calculation of flow from the open end of a shock tube. Comparison of numerical results with available experimental data for overpressure at selected points around the shock tube exit shows good agreement. Numerically indicated positions of the moving shock front and Mach stem also compare well with flow shadowgraph data. Where the problem geometry is sufficiently simple and rectangular gridding can be used, Harten's method affords a good choice for blast wave calculations.

Additional Material: 13 Ill.