International Science Community Association Research Journal of Recent Sciences 2277 - 2502 1 12 2012 December 2 Numerical Simulation of Aerodynamic forces acting on Passenger Vehicle While Overtaking 55 63 EN Mohamadian Zahra 1 Department of Computer engineering, Shahrood Branch, Islamic Azad University, Shahrood, IRAN M. Bharani 1 Department of Textile - Fashion Technology, Bannari Amman Institute of Technology, Sathyamangalam, Erode District, TN, INDIA Gowda R.V.Mahendra 2 VSB College of Engineering, Karur, Tamil Nadu, INDIA AdaneAlemmebrat Kiflu 1 Department of Physical Education-Andhra University (AU), Visakhapatnam, INDIA Reddy R.C. 2 SyamBabu M. 3 Mohammed M.B. 1 Department of Applied Science, College of Science and Technology, Kaduna Polytechnic, Kaduna, NIGERIA Mohammed S.S. 2 Adewumi A.A.J. 3 Farshidfar Ramin 1 Sama Technical and Vocational Training College, Islamic Azad University, Qaemshahr Branch, Qaemshahr, IRAN Abbasali Ranjbar 2 Department of Architecture, Sari Branch, Islamic Azad University, Sari, IRAN Srinivas Mondam. 1 Lecturer, Department of Physiotherapy, Windfield International College, Kuala Lumpur, MALAYSIA SrikanthBabu V. 2 Lecturer, Department of Anatomy, MSU, Kuala Lumpur, MALAYSIA KumarB. Raviendra 3 Jalaja Prakash 4 N. Mayavan 1 Department of Futures Studies Madurai Kamaraj University, Madurai, INDIA Sundaram A. 2 VelusamySaranya Akilanpuram 1 Department of Chemistry, Karpagam University, Coimbatore-21, Tamil Nadu, INDIA Subban Ravi 2 Ismail K. 1 Faculty of Management and Human Resource Development, University Technology, MALAYSIA Hussain J. 2 Shah F.A. 3 Hussain A. 4 Ranjbar Abbas 1 Orientology, State University of Yerevan, ARMENIA Tank NileshR 1 School of Mechanical and Building Sciences, VIT University, Vellore-632014, TN, INDIA ThundilKaruppa Raj 2 > Research Paper 2012 8 16 2012 December 2 External aerodynamic analysis is considerable when any solid body obstructs the flow, like on road vehicle. Generally flow is parallel to the vehicle direction and in opposite, but in some cases like on high way where, wind is blowing from sides also. It is more interesting if the vehicles are overtaking each other, because considerable transient condition is occurring. For overtaking vehicles transient condition is inevitable which has considerable effects on results. Numerical flow around the passenger car, a bluff body, is the subject of present work in both, steady state as well as transient condition. Cross wind situation will arise transient condition on high ways frequently which can affect the directional stability of the vehicle. Here 2D cross flow and axial flow steady as well as transient cross flow with dynamic mesh CFD simulation is completed using commercial package. Generally numerical analysis predicts values near to experimental value, which is in terms of time and cost saving. Copyright@ International Science Community Association