Browse > Article
http://dx.doi.org/10.5050/KSNVE.2014.24.3.180

Numerical Investigation of Sunroof Buffeting for Hyundai Simplified Model  

Khondge, Ashok (ANSYS India)
Lee, Myunghoon (ANSYS Korea)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.24, no.3, 2014 , pp. 180-188 More about this Journal
Abstract
Hyundai Motor Group(HMG) carried out experimental investigation of sunroof buffeting phenomena on a simplified car model called Hyundai simplified model(HSM). HMG invited participation from commercial CFD vendors to perform numerical investigation of sunroof buffeting for HSM model with a goal to determine whether CFD can predict sunroof buffeting behavior to sufficient accuracy. ANSYS Korea participated in this investigation and performed numerical simulations of sunroof buffeting for HSM using ANSYS fluent, the general purpose CFD code. First, a flow field validation is performed using closed sunroof HSM model for 60 km/h wind speed. The velocity profiles at three locations on the top surface of HSM model are predicted and compared with experimental measurement. Then, numerical simulations for buffeting are performed over range of wind speeds, using advanced scale resolving turbulence model in the form of detached eddy simulation (DES). Buffeting frequency and buffeting level are predicted in simulation and compared with experimental measurement. With reference to comparison between experimental measurements with CFD predictions of buffeting frequency and level, conclusion are drawn about predictive capabilities of CFD for real vehicle development.
Keywords
HSM; DES(Detached Eddy Simulation); CFD; Sunroof Buffeting; ANSYS Fluent;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Kook, H. And Mongeau, L., 2002, Analysis of the Periodic Pressure Fluctuations Induced by Flow Over a Cavity, Journal of Sound and Vibration, Vol. 251, No. 5, pp. 823-846.   DOI   ScienceOn
2 Kim, Y. N., Park, Y. Y., Park, I., Lee, M., Cyr Stephane, Jeon, W. H., Mendoca F., Cho, M., Kim, H. G. and Oh C. S., 2012, The 2nd Benchmark of Commercial Wind Noise Programs for Hyundai Simplified Buffeting Models, Proceedings of the KSNVE Annual Spring Conference, pp. 815-817.
3 An, C. F., Alaie, S.M., Sovani, S. D., Scislowicz, M. S. and Sing, K., 2004, Side Window Buffeting Characteristics of an SUV, 2004-01,0230, SAE World Congress.
4 Hendriana, D., Sovani, S. D. and Schiemann, M. K., 2003, On Simulating Passenger Car Side Window Buffeting, 2003-01-1316, SAE world Congress.
5 ANSYS Software R14.0 Help Manual, 2012.
6 Inagak, M., Murata, O., Kondoh, T. and Abe, K., 2002, Numerical Prediction of Fluid-resonant Oscillation at Low Mach Number, AIAA Journal, Vol. 40, No. 9, pp. 1823-1908.   DOI   ScienceOn
7 Huco, W. H., 1998, Aerodynamics of Road Vehicles, 4th edition, Society of Automotive Engineers, Inc., Warredale, Pa.