@inproceedings{Deiterding, author = {Deiterding, Ralf}, title = {Object-oriented design of an AMR-algorithm for distributed memory computers}, pages = {10 S.}, abstract = {The design of an object-oriented framework for the blockstructured Berger-Oliger AMR-method is presented. It simplifies the definition of concrete applications and allows a natural formulation of the parallel AMR-algorithm. A distribution strategy especially tailored for AMR is described. Gas dynamical computations of instabilities of the Kelvin-Helmholtz type in two and three space dimensions are employed to demonstrate the efficiency of the approach.}, language = {en} } @techreport{Deiterding, author = {Deiterding, Ralf}, title = {Simulation of a shock tube experiment with non-equilibirum chemistry}, address = {Cottbus}, abstract = {The ignition process of a hydrogen-oxygen-argon mixture in a shock tube is simulated. The document describes a reactive test case of the DFG high priority research program "Analysis und Numerics of Conservation laws".}, language = {en} } @techreport{Deiterding, author = {Deiterding, Ralf}, title = {Simulation eines Stoßrohrexperiments mit Nichtgleichgewichtschemie}, address = {Cottbus}, abstract = {Der Entz{\"u}ndungsvorgang eines Wasserstoff-Sauerstoff-Argon-Gemisches in einem Stoßrohr wird simuliert. Das Dokument beschreibt einen reaktiven Testfall der DFG-Schwerpunktprogramms "Analysis und Numerik von Erhaltungsgleichungen".}, language = {de} } @inproceedings{Deiterding, author = {Deiterding, Ralf}, title = {Accurate Simulation of Rayleigh-Taylor instabilities}, series = {Proceedings, Colloquium Fluid Dynamics '99, Prague, 19 - 20.10.1999}, booktitle = {Proceedings, Colloquium Fluid Dynamics '99, Prague, 19 - 20.10.1999}, publisher = {Acad. of Sciences of the Czech Republic, Inst. of Thermodynamics}, address = {Prague}, isbn = {80-85918-52-8}, pages = {37 -- 44}, abstract = {We derive a modification of the wave propagation proposed by R. J. LeVeque to accurately capture the behaviour of quasi-steady flows to the case of the Euler equations undergravitational influence and apply it to flows of two nonmixing ideal gases. We present results of a numerical simulation of the behaviour of an instable interface between two gases driven by the standard gravitational field (Rayleigh-Taylor-instability).}, language = {en} } @inproceedings{BaderDeiterding, author = {Bader, Georg and Deiterding, Ralf}, title = {A distributed memory adaptive mesh refinement package for inviscid flow simulations}, series = {Proceedings, Colloquium Fluid Dynamics '99, Prague, 19 - 20.10.1999}, booktitle = {Proceedings, Colloquium Fluid Dynamics '99, Prague, 19 - 20.10.1999}, publisher = {Acad. of Sciences of the Czech Republic, Inst. of Thermodynamics}, address = {Prague}, isbn = {80-85918-52-8}, pages = {9 -- 14}, abstract = {An object-oriented implementation in C++ of the Berger-Oliger adaptive mesh refinement algorithm for hyperbolic conservation laws is described. The software design is tailored especially for distributed memory super-computers. An examplary computation for the standard inviscid Euler equations is shown.}, language = {en} } @inproceedings{Deiterding, author = {Deiterding, Ralf}, title = {Efficient simulation of multi-dimensional detonation phenomena}, abstract = {The paper presents a solution strategy for Euler equations for multiple thermally perfect gaseous species with detailed chemical reaction. Via operator-splitting a high-resolution finite-volume scheme and a stiff ODE solver are coupled. A parallel blockstructured adaptive mesh refinement algorithm is utilized to achieve the required local resolution. A highly resolved computation of regular detonation-cell patterns of the hydrogen-oxygen-argon system demonstrates the efficiency of the entire approach.}, language = {en} }