Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Karl Heinz A. Winkler"'
Publikováno v:
Journal of Computational Physics. 158:225-238
The need to simulate fully developed turbulence with wide range of scales led us to use the Piecewise Parabolic Method (PPM) to solve the Euler equations of motions. To obtain data for 3-D homogeneous compressible decaying turbulence numerical simula
This NATO Advanced Research Workshop was devoted to the pre sentation, evaluation, and critical discussion of numerical methods in nonrelativistic and relativistic hydrodynamics, radia tive transfer, and radiation-coupled hydrodynamics. The unify
Autor:
William P. Dannevik, Ronald H. Cohen, David H. Porter, B. C. Curtis, Igor Sytine, S. W. Hodson, Karl-Heinz A. Winkler, Arthur A. Mirin, D. E. Eliason, Paul R. Woodward, Sarah E. Anderson, Andris Dimits
Publikováno v:
Computational Fluid Dynamics.
The steadily increasing power of supercomputing systems is enabling very high resolution simulations of compressible, turbulent flows in the high Reynolds number limit, which is of interest in astrophysics as well as in several other fluid dynamical
Publikováno v:
Computer Physics Communications. 18:171-199
We present a numerical method which is suitable for calculating selfgravitating gas flows including thermodynamic processes and radiation. Such problems arise for example in connection with the formation of new stars by gravitational collapse of inte
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer. 31:479-489
We derive the radiation and fluid equations for relativistic flows in conservative from in a completely adaptive coordinate system.
Publikováno v:
Journal of Computational Physics. 63:283-310
We describe a new implicit-explicit hybrid method for solving the equations of hydrodynamics. The scheme is an extension of the explicit second-order piecewise-parabolic method (PPM) which is unconditionally stable. The scheme is thus of the Godunov
Publikováno v:
Physics Today. 40:28-37
In a series of talks in 1946, John von Neumann envisioned the use of high‐speed computers to generate solutions to nonlinear problems, particularly in fluid dynamics. He pointed out that scientists were conducting expensive and difficult experiment
Autor:
Karl-Heinz A. Winkler
Publikováno v:
The Moon and the Planets. 19:237-244
A consistent hydrodynamical and radiative transfer calculation in spherical symmetry for a 1M ⊙ protostar is presented. The calculation starts with Larson's initial conditions and continues until almost all the material has fallen onto a hydrostati
Publikováno v:
Physica D: Nonlinear Phenomena. 12:83-106
Supersonic gaseous jets exhibit coherent nonlinear dynamic structures. We use a supercomputer to obtain solutions to the equations of two-dimensional inviscid hydrodynamics, representing both axisymmetric and planar jets boring their way through a un
Publikováno v:
Computer Physics Communications. 36:121-140
We identify the three essential parts for a successful and robust adaptive grid distribution equation for systems of nonlinear partial differential equations: (1) the spatial function, which is composed of operators that control the shape and size of