Views
3 years ago

numerical simulation of laminar diffusion flames problem ... - MGNet

numerical simulation of laminar diffusion flames problem ... - MGNet

numerical simulation of laminar diffusion flames problem ... -

NUMERICAL SIMULATION OF LAMINAR DIFFUSION FLAMESCRAIG C. DOUGLAS , ALEXANDRE ERN y AND MITCHELL D. SMOOKE zNot too long ago, anyone wanting to solve large science or engineering problemshad to rst get access to a supercomputer costing millions of dollars. Quite recently,a new breed of relatively inexpensive work stations became widely available. Thesemachines have scalar peak speeds of 30{275 megaops with ones on the horizon of 400or more (which compares rather favorably with vector supercomputers of not so longago). While these rates are only seen for simple problems like dense matrix{matrixmultiplication, the rates seen for many problems are quite high.In this article, we describe a class of problems which can now be solved on machinesindividuals can aord to own rather than just on ones costing millions of dollars. Ofcourse, the problem with using a single one of these machines is that the option ofconnecting a collection of machines together or buying a parallel version of the workstation becomes more and more tantalizing.In fact, during the course of two years we did all of the above. We started ona single machine with a 100 megaop peak rate (an IBM RISC System/6000 model560 computer). Then we used a farm of the IBM's, an IBM SP1, and nally an SP2.Due to a nice feature of the communications' library we used (EUIH), the executablesworked on the ethernet at Yale or on the fast switches in the SP1/SP2's without eitherrecompiling or relinking.PROBLEM FORMULATIONAdvances in the development of computational algorithms and computer capabilitieshave provided new, extremely powerful tools with which toinvestigate chemicallyreacting systems that were computationally infeasible only a few years ago. Diusionames are one such example. When studying the interaction of heat and mass transferwith chemical reactions in commercial burners, gas turbines, and ram jets, these amesare important. When modeling turbulent reacting ows, in improving engine eciency,and in investigating the processes by which pollutants are formed, the ability to predictthe coupled eects of chemical reactions and complex transport phenomena is critical.Practical combustion systems require a multidimensional study. In the past, themodeling has been done along two independent lines, where either chemistry or uiddynamics eects are given priority. For many years, most of the detailed chemistry,computational studies were therefore strictly one dimensional congurations: freelyIBM Research Division, Thomas J. Watson Research Center, P. O.Box 218, Yorktown Heights,NY 10598-0218, USA and Department of Computer Science, Yale University, P.O.Box 208285, NewHaven, CT 06520-8285, USA.yDepartment of Mechanical Engineering, Yale University,P.O.Box 208286, New Haven, CT 06520-8286, USA and CERMICS, ENPC, La Courtine, 93167, Noisy-le-Grand Cedex, FRANCE.zDepartment of Mechanical Engineering, Yale University,P.O.Box 208286, New Haven, CT 06520-8286, USA.

Elastic waves in random media: A challenge for numerical simulation
A Software Package for Numerical Simulation of Semiconductor - GSS
Numerical Prediction of Sooting Laminar Diffusion Flames Using ...
multigrid solution of flame sheet problems on serial and ... - MGNet
Effects of heat release in laminar diffusion flames - Mechanical ...
Numerical Simulation of Turbulent Premixed Flames with ...
Turbulent Flames and Their Numerical Simulation
soot formation in laminar diffusion flames - Yale University
Soot formation in laminar diffusion flames - ResearchGate
Shapes of Buoyant and Nonbuoyant Laminar Jet Diffusion Flames
Soot formation in high-pressure laminar methane diffusion flames
Numerical Study of Premixed Laminar Spherical Flames
numerical modeling of laminar coflow flames with detailed kinetics
Numerical Simulation of Laminar and Turbulent Two- Phase Flow in ...
analytical study of a laminar diffusion flame response to ...
Numerical simulation of transitional flows with laminar kinetic energy
Numerical experiments for advection± diffusion problems in a ...
Numerical simulations of nonequilibrium and diffusive effects in ...
Numerical Simulations of Fluid-Structure Interaction Problems using ...
A Review of Numerous Parallel Multigrid Methods - MGNet
Numerical Simulation of the Dynamics of Turbulent Swirling Flames
About the Numerical Simulation of Heat and Moisture Diffusion in ...
Numerical methods for the simulation of a diffuse interface ... - CMI
Modeling and Numerical Simulation of Diffusion Induced Segregation
numerical methods for simulating diffusion in ... - e-scholar@UOIT
Numerical simulation of laminar-turbulent transition on a dolphin ...
Numerical simulation of laminar-turbulent transition on a dolphin ...
Numerical simulation of the laminar-turbulent boundary-layer ...
Numerical simulation on diffusion phenomena in mine ... - SME
Chapter 6 Single Channel Laminar Flat Flame Simulations 6.1 ...