Abstract
The turbulence-generation mechanism in the intake and compression processes of an engine with a square cylinder is investigated by performing a three-dimensional numerical simulation. Emphasis is placed on the influences of the intake turbulence and the compression effect on the TDC turbulence. The compressible Navier-Stokes equations are solved without any explicit turbulence models. The employed numerical algorithm is an extended version of the ICE method, and the third-order upwind scheme is employed for the convective terms. The obtained computational results agreed well with the experimental visualization using freon as the working fluid under the Mach-number condition over 0.5. It is shown that the drastic transition to turbulence near TDC is grasped by computations using this numerical method.
| Original language | English |
|---|---|
| Pages (from-to) | 2719-2726 |
| Number of pages | 8 |
| Journal | Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |
| Volume | 57 |
| Issue number | 540 |
| Publication status | Published - 1991 Aug |
| Externally published | Yes |
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ASJC Scopus subject areas
- Mechanical Engineering
Cite this
Numerical simulation of the small vortices in the intake and compression processes of an engine. / Naitoh, Ken; Kuwahara, Kunio; Jeschke, Manfred; Krause, Egon.
In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 57, No. 540, 08.1991, p. 2719-2726.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Numerical simulation of the small vortices in the intake and compression processes of an engine
AU - Naitoh, Ken
AU - Kuwahara, Kunio
AU - Jeschke, Manfred
AU - Krause, Egon
PY - 1991/8
Y1 - 1991/8
N2 - The turbulence-generation mechanism in the intake and compression processes of an engine with a square cylinder is investigated by performing a three-dimensional numerical simulation. Emphasis is placed on the influences of the intake turbulence and the compression effect on the TDC turbulence. The compressible Navier-Stokes equations are solved without any explicit turbulence models. The employed numerical algorithm is an extended version of the ICE method, and the third-order upwind scheme is employed for the convective terms. The obtained computational results agreed well with the experimental visualization using freon as the working fluid under the Mach-number condition over 0.5. It is shown that the drastic transition to turbulence near TDC is grasped by computations using this numerical method.
AB - The turbulence-generation mechanism in the intake and compression processes of an engine with a square cylinder is investigated by performing a three-dimensional numerical simulation. Emphasis is placed on the influences of the intake turbulence and the compression effect on the TDC turbulence. The compressible Navier-Stokes equations are solved without any explicit turbulence models. The employed numerical algorithm is an extended version of the ICE method, and the third-order upwind scheme is employed for the convective terms. The obtained computational results agreed well with the experimental visualization using freon as the working fluid under the Mach-number condition over 0.5. It is shown that the drastic transition to turbulence near TDC is grasped by computations using this numerical method.
UR - http://www.scopus.com/inward/record.url?scp=0026206069&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0026206069&partnerID=8YFLogxK
M3 - Article
VL - 57
SP - 2719
EP - 2726
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 540
ER -