In Cylinder Gas Motions Via Non-Isotropic Turbulent Modeling and Experiment 891915
In cylinder gas motion of an open chamber diesel engine is modeled via a newly developed non-isotropic turbulent flow approach. The theoretical treatment is based on the turbulent kinetic energy-dissipation-random model of Reynolds stress (k - ε - R) which incorporates the non-isotropic fluctuating characteristics of gas movement during a compression stroke of a direct injection diesel engine. The validity of the model was compared to the experimental measurement obtained on an axisymmetric reentrant bowl chamber engine configuration. The experimental data fit much more closely to the established non-isotropic behavior in contrast to the traditional isotropic approach.
Citation: Sun, J., Dong, Y., Xu, Y., and Tsao, K., "In Cylinder Gas Motions Via Non-Isotropic Turbulent Modeling and Experiment," SAE Technical Paper 891915, 1989, https://doi.org/10.4271/891915. Download Citation
Author(s):
Jimei Sun, Yu Dong, Yong Xu, K. C. Tsao
Affiliated:
Jilin University of Technology, The University of Wisconsin-Milwaukee
Pages: 12
Event:
1989 SAE International Off-Highway and Powerplant Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Diesel / compression ignition engines
Engine cylinders
Turbulence
Simulation and modeling
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