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Front-End Airflow Rate Simulation
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English
Abstract
Front-end airflow predictions are generally carried out at the styling stage in the development process for vehicle cooling systems. These predictions have taken on increasing importance in recent years in studying the heat radiation capacities of the radiator. This paper presents a method for simulating front-end airflow rates.
Two- and three-dimensional front-end airflow simulations are iirst analyzed experimentally. A technique for predicting a three-dimensional airflow from a numerical analysis of a two-dimensional airflow is then examined, and a comparison is made with actual vehicle data. A sample application of this simulation method is presented and a comparison is made with experimental data. Good quantitative agreement is seen between the calculated and experimental results. This paper also discusses the present status of three-dimensional analysis which is expected to become a major trend in the future.
Citation
Kawashima, K. and Fujii, B., "Front-End Airflow Rate Simulation," SAE Technical Paper 881748, 1988, https://doi.org/10.4271/881748.Also In
References
- Himeno, R. et al. “Numerical Solutions to Two-dimensional Flow Around a Vehicle Using the Finite-difference Method,” Transactions of the Japan Society of Mechanical Engineers 86-0407A 1986
- Williams, J. et al. “A Quasi-Three-Dimensional Computational Procedure for Prediction of Turbulent Flow Through the Front-End of Vehicles,” SAE Paper 850282 1985
- Hannond, D. “Use of a Supercomputer in Aerodynamics Computation at General Motor Research Laboratories,” SAE Paper 850473 1985
- China, H. et al. “Prediction of Airflow Rate Through the Radiator Using a Two-dimensional Numerical Fluid Analysis Program,” Preprint of JSAE Lecture Series 870, No. 87011