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http://dx.doi.org/10.14775/ksmpe.2020.19.11.016

Analysis of Airflow due to the Configuration of Automotive Diffuser  

Choi, Kyekwang (Department of Metal Mold Design Engineering, Kongju National UNIV.)
Cho, Jaeung (Division of Mechanical and Automotive Engineering, Kongju National UNIV.)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.19, no.11, 2020 , pp. 16-22 More about this Journal
Abstract
This study was aimed at analyzing the velocity and pressure changes in the airflow corresponding to different configurations of a diffuser for three types of cars. According to the flow results of the three automotive models, in model 3, the vortex was formed slightly upward on the outlet plane, whereas in models 1 and 2, the vortex was generated lower than that in model 3. The values of the pressure distribution in model 3 were larger than those for models 1 and 2 on the planes located at the same distance from the end of the rear part. The maximum turbulent kinetic energies in models 1 and 2 occurred at a location lower than that in model 3. The shape corresponding to the airflow that enhanced the driving performance was determined through the flow analysis.
Keywords
Diffuse; Airflow; Vortex; Velocity; Pressure; Turbulence Kinetic Energy;
Citations & Related Records
Times Cited By KSCI : 10  (Citation Analysis)
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1 Suk, O. B. and Cho, J. U., "A Convergence Study through Flow Analysis due to the Configuration of Automotive Air Breather," Journal of the Korea Convergence Society, Vol. 9, No. 10, pp. 265-270, 2018.   DOI
2 Cho, J. U., "A Flow Analysis on Wing Shape of Cooling Fan at Automobile", Journal of the Korea Convergence Society, Vol. 5, No. 4, pp. 75-79, 2014.   DOI
3 Kim, G. H. and Lee, D. R., "A Study on The Flow Analysis in the Turbocharger Turbine with Different Rotational speeds," Journal of the Korean Society of Mechanical Technology, Vol. 18, No. 5, pp. 734-739, 2016.   DOI
4 Lee, J. B., Yang, D. H., Kim, S. Y. and Kim, K. S., "A Study on Flow Analysis of the Blast Valve for Anti-aircraft Shelter," Journal of the Korean Society of Mechanical Technology, Vol. 17, No. 5, pp. 1107-1115, 2015.   DOI
5 Lee, S. H. and Hur, N. K., "Numerical Study on Effects of Design Factors on Flow Characteristics of a Vane Pump," The KSFM Journal of Fluid Machinery, Vol. 10, No. 6, pp. 24-31, 2007.   DOI
6 Kim, M. R., Lee, S. J., Li, L. and Lee, D. W., "A study on lubrication Properties of a Dimple Pattern using an Average Flow Analysis with a Contact Model of Asperities," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 15, No. 6, pp. 41-49, 2016.   DOI
7 Won, C. S, Hur, N. K. and Kwon, S. H., "Flow Analysis of Automotive Oil Pump of Gerotor Type," The KSFM Journal of Fluid Machinery, Vol. 6, No. 4, pp 7-13, 2013.
8 Choi, C. H, Noh, J. G. and Kim, J. H., "Numerical Simulation of Cavitating Flow Around Turbopump Inducer," The KSFM Journal of Fluid Machinery, Vol.13, No. 3, pp 49-53, 2010.   DOI
9 Choi, K. K., Hong, S. M. and Han, S. R., "Effect of Flow Pattern of Coolant for Injection Mold on the Deformation of Injection Molding," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 14, No. 4, pp. 92-99, 2015.   DOI
10 Kim, H. J. and Kim, S. H., "A Study on Air Flow Characteristics of Mid-mower for Tractor(I)," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 14, No. 3, pp. 27-35, 2015.   DOI
11 Kim, H. J. and Lee, Y. M., "Experimental Study on Air Flow Characteristics of Axial Dual-blade Fan," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 13, No. 4, pp. 113-120, 2014.   DOI
12 Oh, H. J., Lyu, J. H. and Park, J. Y., "Rodent Experiments for Pedestrian Flow Simulation at Exit with Various Angles," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 15, No. 4, pp. 30-39, 2016.   DOI