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Journal ArticleDOI

Klassische Runge-Kutta-Formeln vierter und niedrigerer Ordnung mit Schrittweiten-Kontrolle und ihre Anwendung auf Wärmeleitungsprobleme

Erwin Fehlberg
- 01 Mar 1970 - 
- Vol. 6, Iss: 1, pp 61-71
TLDR
These new formulas are suitable for the numerical integration of heat transfer problems after discretisation of these problems in the space variables, since stability considerations, occurring in such problems, would eliminate the benefits of high-orderRunge-Kutta formulas.
Abstract
Es werden neue, expliziteRunge-Kutta-Formeln vierter und niedrigerer Ordnung mitgeteilt. Diese Formeln enthalten eine Schrittweiten-Kontrolle, die auf einer vollstandigen Erfassung des ersten Gliedes des lokalen Abbruchfehlers basiert. Die Formeln haben wesentlich kleinere Abbruchfehler als entsprechende Formeln anderer Autoren. Diese neuen Formeln eignen sich zur numerischen Integration von in den Raumvariablen diskretisierten Warmeleitungsproblemen, da die bei solchen Problemen auftretenden Stabilitatsverhaltnisse die zulassige Schrittweite vonRunge-Kutta-Formeln hoherer Ordnung beeintrachtigen wurden. Die Formeln werden auf ein Beispiel fur ein Warmeleitungsproblem angewandt.

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Citations
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Journal ArticleDOI

Massively parallel computation of atmospheric neutrino oscillations on CUDA-enabled accelerators

TL;DR: Two scalable multi-GPU extensions of common neutrino oscillation frameworks are introduced – namely Prob3++ and ν SQuIDS –allowing for the acceleration of oscillation dynamics computation by one to three orders ofmagnitude while preserving numerical accuracy.
Journal ArticleDOI

Rational Approximations for Heat Radiation and Troesch’s Equations

TL;DR: In this paper, a new tool for the solution of nonlinear differential equations is presented, named rational homotopy perturbation method (RHPM), which delivers a high precision representation of the non-linear differential equation using a few linear algebraic terms.
Journal ArticleDOI

An Effective Numerical Calculation Method for Multi-Time-Scale Mathematical Models in Systems Biology

TL;DR: In this article, the authors designed and developed an effective numerical calculation method to improve the time stiff problem, which consisted of ahead, backward, and cumulative algorithms, and reduced the number of numerical calculations required for multi-time-scale models with the time-stiff problem.
Journal ArticleDOI

Algebraic Analysis Approach for Multibody Problems

TL;DR: For a 108-body problem, which corresponds to full three-dimensional Coulomb interactions within the Debye sphere in a fusion plasma, the ALG approximation is 263 times as fast as the 6-stage 5th order Runge-Kutta-Fehlberg method with an absolute error tolerance of 10−16.
Journal ArticleDOI

Benchmarking numerical methods for lattice equations with the Toda lattice

TL;DR: In this paper, the performance of well-known numerical time-stepping methods that are widely used to compute solutions of the doubly-infinite Fermi-Pasta-Ulam-Tsingou (FPUT) lattice equations is compared.
References
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Classical Fifth-, Sixth-, Seventh-, and Eighth-Order Runge-Kutta Formulas with Stepsize Control

TL;DR: Runge-Kutta formulas of high order with stepsize control through leading truncation error term through leading parallelogram error term.
Journal ArticleDOI

Klassische Runge-Kutta-Formeln fünfter und siebenter Ordnung mit Schrittweiten-Kontrolle

TL;DR: New explicit fifth- and seventh-orderRunge-Kutta formulas are derived that include a stepsize control procedure based on a complete coverage of the leading term of the local truncation error.
Journal ArticleDOI

Modern Computing Methods

Jr. James E. Kelley
- 01 Jul 1959 -