Shock Capturing Using Flux-corrected Transport Algorithms with Adaptive Gridding PDF Download
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Author:
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Category : Algorithms
Languages : en
Pages : 48
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Book Description
A numerical technique has been developed for capturing complex, nonsteady shock structures in multidimensions. The technique relies on moving the computational mesh with the shock wave so that the features of principal interest appear approximately stationary. The method has been implemented using coordinate-split Flux-Corrected Transport (FCT) algorithms which allow the mesh to evolve arbitrarily with respect to the fluid in each coordinate. The grid may thus be optimized in response to the needs of a given problem. Synchronizing the grid and fluid motions permits significant reduction of numerical transients and eliminates numerical diffusion. Shocks develop naturally, with no fitting. The method is illustrated by calculating complex, two-dimensional Mach reflection phenomena associated with airblasts and shock diffraction on wedges. The numerical results are in good agreement with available experimental data. (Author).
Author:
Publisher:
ISBN:
Category : Algorithms
Languages : en
Pages : 48
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Book Description
A numerical technique has been developed for capturing complex, nonsteady shock structures in multidimensions. The technique relies on moving the computational mesh with the shock wave so that the features of principal interest appear approximately stationary. The method has been implemented using coordinate-split Flux-Corrected Transport (FCT) algorithms which allow the mesh to evolve arbitrarily with respect to the fluid in each coordinate. The grid may thus be optimized in response to the needs of a given problem. Synchronizing the grid and fluid motions permits significant reduction of numerical transients and eliminates numerical diffusion. Shocks develop naturally, with no fitting. The method is illustrated by calculating complex, two-dimensional Mach reflection phenomena associated with airblasts and shock diffraction on wedges. The numerical results are in good agreement with available experimental data. (Author).
Author:
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ISBN:
Category : Blast effect
Languages : en
Pages : 36
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Book Description
Flux-corrected transport represents an accurate and flexible class of methods for solving nonsteady compressible flow problems. In models which treat all the physical effects required for blast wave simulation, truncation errors inherent in the underlying finite-difference scheme are exacerbated by nonlinear coupling between the fluid equations and by the greater complexity of the phenomena being simulated. In order to improve the properties of the basic difference scheme, we propose a new algorithm for integrating generalized continuity equations over a timestep delta t.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 196
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Author: University of Toronto. Institute of Aerospace Studies
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 684
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Author:
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ISBN:
Category : Power resources
Languages : en
Pages : 1696
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Author: Kazuyoshi Takayama
Publisher: Springer Science & Business Media
ISBN: 3642776485
Category : Science
Languages : en
Pages : 735
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Book Description
Shock wave research covers important inderdisciplinary areas which range from basic topics on gasdynamics, combustion and detonation, physico-chemistry of high temperature gases, plasma physics, astro and geophysics, materials science, astronautics and space technology to medical and industrial applications. This book includes 202 papers presented at the 18th the International Symposium on Shock Waves which describe the research frontier of shock wave phenopmena and 14 plenary lectures which show the state of the art of various fields of shock wave research. This proceedings is a unique collection of most important and updated shock wave research.
Author: Dmitri Kuzmin
Publisher: Springer Science & Business Media
ISBN: 9400740387
Category : Science
Languages : en
Pages : 462
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Book Description
Addressing students and researchers as well as Computational Fluid Dynamics practitioners, this book is the most comprehensive review of high-resolution schemes based on the principle of Flux-Corrected Transport (FCT). The foreword by J.P. Boris and historical note by D.L. Book describe the development of the classical FCT methodology for convection-dominated transport problems, while the design philosophy behind modern FCT schemes is explained by S.T. Zalesak. The subsequent chapters present various improvements and generalizations proposed over the past three decades. In this new edition, recent results are integrated into existing chapters in order to describe significant advances since the publication of the first edition. Also, 3 new chapters were added in order to cover the following topics: algebraic flux correction for finite elements, iterative and linearized FCT schemes, TVD-like flux limiters, acceleration of explicit and implicit solvers, mesh adaptation, failsafe limiting for systems of conservation laws, flux-corrected interpolation (remapping), positivity preservation in RANS turbulence models, and the use of FCT as an implicit subgrid scale model for large eddy simulations.
Author: Charles E. Treanor
Publisher: State University of New York Press
ISBN: 1438405502
Category : Philosophy
Languages : en
Pages : 908
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Book Description
Sponsored by the U.S. Air Force Office of Scientific Research, this conference was held in Niagara Falls on July 6–9, 1981. This book includes material on the following topics: instrumentation and diagnostics, shock tube facilities and techniques, gas dynamic experiments, heat transfer and real gas effects, boundary layers, shock structure, shock propagation, laser and spectral optical studies, chem and kinetics, relaxation and excitation, ionization, dusty gases, two-phase flow and condensation, shock waves in the environment and energy, and energy-related processes. The book contains a total of 98 papers by well-known specialists.
Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 468
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Author: University of Toronto. Institute for Aerospace Studies
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 780
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Book Description
