Simulation of Gas Exhaustion from a Combustion Chamber of a Reciprocating Engine

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F10%3A00169271" target="_blank" >RIV/68407700:21220/10:00169271 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Simulation of Gas Exhaustion from a Combustion Chamber of a Reciprocating Engine
Original language description
The document deals with a numerical simulation of a flow leaving the combustion chamber of a four-stroke engine. The problem has been solved with an in-house numerical code, based on finite volume method. The flow model is simplified to an ideal gas, neglecting all the flow chemistry. The flow has been described by a set of Reynolds-Averaged Navier-Stokes equations, together with equations of a turbulence model. The AUSM+up scheme has been used. Spatial accuracy of the scheme has been improved by the use of linear reconstruction with a limiter. Contours of both the valve and the exhaust channel contain several sharp corners causing flow separations inside the domain observed. These recirculations affect strongly the flow pattern in a pipe. Several geometrical configurations of the exhaust pipe have been tested, in order to study the influence of geometry detailness. The contribution presents several actual results revealing the flow structure.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the Fifth Conference on Computation Fluid Dynamics ECCOMAS CFD 2010
ISBN
978-989-96778-1-4
ISSN
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e-ISSN
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Number of pages
13
Pages from-to
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Publisher name
Instituto Superior Técnico, Technical University of Lisbon, National Civil Engineering Laboratory
Place of publication
Lisbon
Event location
Lisabon
Event date
Jun 14, 2010
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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