Browse Publications Technical Papers 2009-32-0101

Early stage development of a 4-stroke gas exchange process by the use of a coupled 1D / 3D simulation strategy 2009-32-0101

In the early phase of an engine development process, the main characteristics of an engine setup, such as lengths, diameter and volumes, are usually defined by means of 1D CFD simulation technologies. Only single flow situations are modeled in 3D due to the high expenditure of time and money. This paper presents a new efficient development methodology using 1D, 3D as well as coupled 1D/3D simulation techniques - the described simulation strategy leads to a more realistic and more comparable reproduction of the flow situation, especially in the critical areas of the simulation domain, while avoiding the restrictions and disadvantages of 1D and 3D simulation. By the use of test bench results of a comparable prototype engine, the quality of the simulation strategy has been successfully verified.


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