𝔖 Bobbio Scriptorium
✦   LIBER   ✦

An Implicit Multigrid Method for the Simulation of Chemically Reacting Flows

✍ Scribed by P. Gerlinger; P. Stoll; D. Brüggemann

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
319 KB
Volume
146
Category
Article
ISSN
0021-9991

No coin nor oath required. For personal study only.

✦ Synopsis

The application of multigrid methods is complicated if the set of governing equations contains strongly nonlinear source terms. This is the case for finite-rate chemistry as well as for turbulence conservation equations. In most cases strong nonlinearities within the chemical production rates prevent convergence of standard multigrid methods. This paper investigates different approaches to treating chemical and turbulent production terms on coarse grids in order to enable convergence. Independent of combustion, supersonic flows require special care during restriction and prolongation if strong shock waves occur. A full coarsening four-level nested multigrid method is used for all conservation equations including those of turbulence and species transport. Strong convergence accelerations are achieved by a local source termdependent damping of the restricted residual error. Several test cases with and without combustion demonstrate the efficiency and accuracy of the proposed multigrid algorithm.

📜 SIMILAR VOLUMES

An Implicit Multigrid Algorithm for Comp
An Implicit Multigrid Algorithm for Computing Hypersonic, Chemically Reacting Viscous Flows
✍ Jack R. Edwards 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 246 KB

are needed before solutions of large-scale chemically reacting, viscous flowfields can be considered routine enough to be used An implicit algorithm for computing viscous flows in chemical nonequilibrium is presented. Emphasis is placed on the numerical in other than a research environment. efficie

Development of an Implicit Method for Mu
Development of an Implicit Method for Multi-fluid Flow Simulations
✍ R.F Kunz; W.K Cope; S Venkateswaran 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 167 KB

A fully coupled implicit method has been developed for solving the viscous full multi-fluid equations, which incorporate transport and generation of mass and momentum for each component present in a system. This work presents stability analysis and representative computational results of this algori

Comparison of ODE methods for laminar re
Comparison of ODE methods for laminar reacting gas flow simulations
✍ S. van Veldhuizen; C. Vuik; C.R. Kleijn 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 337 KB

## Abstract Two‐dimensional transient simulations are presented of the transport phenomena and multispecies, multireaction chemistry in chemical vapor deposition (CVD). The transient simulations are run until steady state, such that the steady state can be validated against the steady state solutio