Aerodynamic Development of Maruti Suzuki Vitara Brezza using CFD Simulations

Paper #:
  • 2017-26-0268

Published:
  • 2017-01-10
DOI:
  • 10.4271/2017-26-0268
Citation:
Kumar, A., Singh, A., S Dhankhar, D., and Regin, F., "Aerodynamic Development of Maruti Suzuki Vitara Brezza using CFD Simulations," SAE Technical Paper 2017-26-0268, 2017, doi:10.4271/2017-26-0268.
Pages:
8
Abstract:
Recent automotive trend shows that customer demand is moving towards bigger size vehicle with more comfort, space, safety, feature and technology. Global market of SUV is projected to surpass 21 million units by 2020. Despite economic slowdown and weak new car sales worldwide, India and China will continue to be primary market for SUV due to sheer size of population, urban expanding middle class and larger untapped rural market. However, stricter emission norms push for clean and green technology and unfavorable policy towards use of diesel vehicle has made the SUV design very challenging due to conflicting needs. Due to bigger size of vehicle, aerodynamic design plays an important role in achieving emission targets and higher fuel efficiency.This paper highlights the aerodynamic development of Maruti Suzuki Vitara Brezza, which is an entry level SUV vehicle with high ground clearance of 198 mm and best in class fuel economy of 24.3 kmpl.CFD has been extensively used for exploring the various design configurations and has helped in selecting the optimized aero-parts configuration based on aerodynamic performance at concept stage which has ultimately reduced the vehicle drag coefficient by around 8%. CFD results have been compared with wind tunnel testing for base configurations which is having more than 97 % correlation.
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