Effects of mesh density on LES of the flow structure in internal combustion engine
- 10.2991/icadme-15.2015.150How to use a DOI?
- diesel engine; flow structure; large-eddy simulation; mesh density
By using the software FIRE, the flow structure of 186FA diesel engine were analyzed by numerical simulation. The indicator diagram, velocity field and turbulent kinetic energy in the cylinder were simulated by both the k - model and the large-eddy simulation(LES) model. The results shows that the mesh density has little effect on the flow structure when the k - model is adopted. Compared with the k - model, the LES model shows a significantly different and relatively more complex turbulence structure and its turbulent kinetic energy is much lower than that of the latter. At the same time, the finer the mesh is, the more distinct the effect is.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - D. Tang AU - Z.H. Zhu AU - L.F. Shen AU - B. Zhang PY - 2015/10 DA - 2015/10 TI - Effects of mesh density on LES of the flow structure in internal combustion engine BT - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering PB - Atlantis Press SP - 764 EP - 769 SN - 2352-5401 UR - https://doi.org/10.2991/icadme-15.2015.150 DO - 10.2991/icadme-15.2015.150 ID - Tang2015/10 ER -