A quasi-dimensional model of turbulence and global charge motion for spark ignition engines with fully variable valvetrains

Grasreiner S, Neumann J, Luttermann C, Wensing M, Hasse C (2014)

Publication Type: Journal article

Publication year: 2014

Journal

International Journal of Engine Research SAGE Publications (UK and US)

Book Volume: 15

Pages Range: 805-816

Journal Issue: 7

DOI: 10.1177/1468087414521615

Abstract

In this article, a new in-cylinder turbulence modeling approach aims at the improvement of quasi-dimensional simulations for modern spark ignition engines with fully variable valvetrains. Within the derived quasi-dimensional turbulence model, the turbulent production term can physically react on a change of engine operation (e.g. intake valve lift, intake valve timing, engine speed and boost pressure). Moreover, the approach offers access to detailed charge motion quantities for the first time in quasi-dimensional calculations. Hence, it is able to satisfy qualitative and quantitative turbulence descriptions within the entire operating range of the engine. © IMechE 2014.

Authors with CRIS profile

Michael Wensing Professur für Fluidsystemtechnik

Involved external institutions

BMW AG - Bayerische Motoren Werke / BMW Group DE Germany (DE) Technische Universität Bergakademie Freiberg DE Germany (DE)

How to cite

APA:

Grasreiner, S., Neumann, J., Luttermann, C., Wensing, M., & Hasse, C. (2014). A quasi-dimensional model of turbulence and global charge motion for spark ignition engines with fully variable valvetrains. International Journal of Engine Research, 15(7), 805-816. https://doi.org/10.1177/1468087414521615

MLA:

Grasreiner, Sebastian, et al. "A quasi-dimensional model of turbulence and global charge motion for spark ignition engines with fully variable valvetrains." International Journal of Engine Research 15.7 (2014): 805-816.

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