Related Experiment Videos
Three-dimensional transient numerical simulation for intake process in the engine intake port-valve-cylinder system
Ma-Ji Luo1, Guo-Hua Chen, Yuan-Hao Ma
1College of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China. zanelmj@21cn.com
Journal of Zhejiang University. Science
|May 27, 2003
Summary
This study models three-dimensional transient intake flow in internal combustion engines using a KIVA-3 code. The simulation reveals tumble motion formation and flow dynamics, aiding intake system design.
Area of Science:
- Computational fluid dynamics
- Internal combustion engine research
- Automotive engineering
Background:
- Accurate simulation of transient intake flow is crucial for optimizing internal combustion engine performance.
- Existing models may lack precision for complex geometries like inclined valves.
Purpose of the Study:
- To develop a precise KIVA-3 code-based numerical model for 3D transient intake flow.
- To analyze flow fields and tumble motion in an internal combustion engine intake system.
- To provide insights for improved intake system design.
Main Methods:
- Utilized KIVA-3 code for numerical modeling.
- Employed a body-fitted technique for accurate geometric representation.
- Performed transient simulations of the intake process in a two-valve engine.
Main Results:
- Successfully modeled the velocity and pressure fields during the intake process.
- Observed the formation and evolution of tumble motion.
- Quantified variations in tumble ratios at different crank angles.
Conclusions:
- The developed model offers higher calculation precision for intake flow analysis.
- Understanding tumble motion dynamics is key for effective intake system design.
- The findings are valuable for optimizing engine efficiency and emissions.