Stationary and transient investigation of swirling in-cylinder flow

被引：1

作者：

Boemer, A

Artiaga-Hahn, S

Ehlen, M

机构：

[1] Deutz AG, Entwicklungszentrum Porz, D-51149 Cologne, Germany

[2] Fluent Deutschland GmbH, D-64295 Darmstadt, Germany

来源：

PROGRESS IN COMPUTATIONAL FLUID DYNAMICS | 2004年 / 4卷 / 06期

关键词：

diesel engine; swirl; CFD; moving mesh;

D O I：

10.1504/PCFD.2004.004757

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper shows how swirling in-cylinder flow in a Diesel engine can be simulated. Stationary simulation and measuring at different but constant valve lifts are the common practices for the time being, but have been proven not to describe the conditions in such cylinders correctly in all cases. Only transient simulation with moving valves and piston provides all information needed to evaluate the flow conditions in the cylinder. After an introduction to swirling flow in Diesel engines, swirl numbers and the respective stationary measuring methods, the results of stationary CFD-simulations are compared with experimental data. The subsequently applied functionalities of the moving and deforming meshes are described and illustrated. Finally the results of a first three dimensional transient simulation of the intake flow in a Deutz Diesel engine are presented and discussed.

引用

页码：320 / 327

页数：8

共 12 条

[1]

BARTHELMA L, 1983, MTZ MOTORENTECHNISCH, V44

[2]

BOEMER A, 2002, P 3 INT C ENG COMP T

[3]

GARTHE H, 1992, MTZ MOTORENTECHNISCH, V53

[4] SOLUTION OF THE IMPLICITLY DISCRETIZED FLUID-FLOW EQUATIONS BY OPERATOR-SPLITTING [J].

ISSA, RI .

JOURNAL OF COMPUTATIONAL PHYSICS, 1986, 62 (01) :40-65

[5]

KIM SE, 1995, ASME FED, V217

[6]

Launder B. E., 1974, Computer Methods in Applied Mechanics and Engineering, V3, P269, DOI 10.1016/0045-7825(74)90029-2

[7]

MILES PC, 2000, CEC SAE SPRING FUELS

[8]

Reynolds W, 1987, Lecture Notes for Von Karman Institute Agard Report No. 755

[9] A NEW KAPPA-EPSILON EDDY VISCOSITY MODEL FOR HIGH REYNOLDS-NUMBER TURBULENT FLOWS [J].

SHIH, TH ;

LIOU, WW ;

SHABBIR, A ;

YANG, ZG ;

ZHU, J .

COMPUTERS & FLUIDS, 1995, 24 (03) :227-238

[10]

THIEN G, 1965, OSTERREICHISCHE INGE, V8

← 1 2 →