An Empirically Integrated CFD Method for Racing Engine Layout and Its Practical Demonstration

Paper #:
  • 2012-32-0068

Published:
  • 2012-10-23
DOI:
  • 10.4271/2012-32-0068
Citation:
Yasui, S. and Nakamura, D., "An Empirically Integrated CFD Method for Racing Engine Layout and Its Practical Demonstration," SAE Technical Paper 2012-32-0068, 2012, doi:10.4271/2012-32-0068.
Pages:
8
Abstract:
Racing engines are required to be developed quickly in order to adapt to ever-changing regulations. A CFD-based optimization would be a useful tool to discover the best solution given the restrictions of the regulations. However, a CFD approach requires repeated trials and errors until the best solution is found because the numerical goal is unknown and the specifications required for the goal are never calculated back when using CFD. Therefore, this paper proposes an Empirically Integrated CFD Method. It is a combination of a one-dimensional CFD and several empirical equations that are derived from the racing engine database with physical meanings. These empirical equations give the CFD-based optimization a proper goal and primary specifications so as to make the optimization loop converge rapidly. This method is experimentally verified for its practical application with a prototype engine. Moreover, this prototype engine reveals the impact of the combustion chamber design on the thermal efficiency, which has not been reflected in conventional CFD. As a result of this study, the Empirically Integrated CFD Method for Racing Engine Layout is established.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Technical Paper / Journal Article
2011-04-12
Book
2015-03-09
Training / Education
2007-08-08
Technical Paper / Journal Article
2010-04-12
Article
2016-09-06
Technical Paper / Journal Article
2011-04-12
Book
2010-06-17
Technical Paper / Journal Article
2011-04-12
Article
2016-08-24