SIMULATING THE DRAG REDUCTION MODEL FOR A VEHICLE BY USING VORTEX GENERATOR
Article Sidebar
Main Article Content
Abstract
Petroleum fuel consign has been lessening at a very high proportion. Almost all automobiles depend upon an IC engine driven by petroleum fuels. As much as the number of automobiles is developing in this modern world, it is obligated to reduce fuel expenditure. One of the ways to do this is to diminish the car's drag. Among a manifold process of reducing drag, using Vortex Generators is one. Delta-shaped vortex generators are used at the rear trunk of the range rover, where the flow separates. K-epsilon turbulent model in ANSYS-Fluent 19.2 software is used to imitate the airflows. This work observed the number and spacing between successive vortex generators based on comparing drag coefficient values. The contours of static pressure and velocity magnitude were also observed for each model. When the vortex generators were attached, the pressure coefficients at the rear trunk began to increase, confirming the increment in back pressure. Hence, the increase in back pressure indicates a reduction in the drag coefficient. It has been found that a combination of 7 vortex generators is the optimum solution. The devices work better at a higher velocity than the lower velocity without affecting vehicle stability. The vortex - 4 model's drag coefficient was found to be significantly lower than that of the standard model vehicle, which is 0.42877. The Base Model of Range Rover (2020) is my sense of humor, the highest drag coefficient. So vortex generators are commonly used on automobile vehicles to prevent downstream flow separation and improve their overall performance by reducing drag.
JEL Classification Codes: C61, R41, Q51.
Downloads
Metrics
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
References
Alam, F., Chowdhury, H., Moria, H., & Watkins, S. (2010). Effects of vehicle add-ons on aerodynamic performance. In The Proceeding of the 13th Asian Congress of Fluid Mechanics (ACFM2010) (p. 186).
Ali, M. H., Mashud, M., Al Bari, A., & Islam, M. M. U. (2013). Aerodynamic drag reduction of a car by vortex generation. International Journal of Mechanical Engineering, 2(1), 12-21.
Askar, M. K. A., Hameed, A. Q., Suffer, K. H., & Razlan, Z. M. (2018). Numerical simulation of a new spoiler on upper surface of Clark Y14 wing. In IOP Conference Series: Materials Science and Engineering (Vol. 429, No. 1, p. 012080). IOP Publishing. Retrieved from https://iopscience.iop.org/article/10.1088/1757-899X/429/1/012080/meta
Dubey, A., Chheniya, S., & Jadhav, A. (2013). Effect of Vortex generators on Aerodynamics of a Car: CFD Analysis. International Journal of Innovations in Engineering and Technology (IJIET), 2(1), 137-144. Retrieved from https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=b9a90aa72877b519d5232f25383a5b28bc344173
Duni, E., Monfrino, G., Saponaro, R., Caudano, M., Urbinati, F., Marco, S., & Antonino, P. (2003). Numerical simulation of full vehicle dynamic behaviour based on the interaction between ABAQUS/Standard and explicit codes. In Abaqus Users' Conference, june Munich.
Franck, G., Nigro, N., Storti, M., & D'elia, J. (2009). Numerical simulation of the flow around the Ahmed vehicle model. Latin American applied research, 39(4), 295-306. Retrieved from http://www.scielo.org.ar/scielo.php?pid=S0327-07932009000400003&script=sci_arttext&tlng=en
Khan, F. N., Batul, B., & Aizaz, A. (2019, October). A CFD analysis of wingtip devices to improve lift and drag characteristics of aircraft wing. In IOP Conference Series: Materials Science and Engineering (Vol. 642, No. 1, p. 012006). IOP Publishing. Retrieved from https://iopscience.iop.org/article/10.1088/1757-899X/642/1/012006/meta
Koike, M., Nagayoshi, T., & Hamamoto, N. (2004). Research on aerodynamic drag reduction by vortex generators. Mitsubishi motors technical review, 16, 11-16. Retrieved from Mitsubishi motors technical review, 2004 - s2ki.com
Lanfrit, M. (2005). Best practice guidelines for handling Automotive External Aerodynamics with FLUENT. Retrieved from https://www.southampton.ac.uk/~nwb/lectures/GoodPracticeCFD/Articles/Ext_Aero_Best_Practice_Ver1_2.pdf
Lin, J. C. (2002). Review of research on low-profile vortex generators to control boundary-layer separation. Progress in Aerospace Sciences, 38(4-5), 389-420. https://doi.org/10.1016/S0376-0421(02)00010-6
Range Rover (2020). Meet The 2020 Land Rover Range Rover At Land Rover Ocala. Retrieved from https://www.landroverocala.com/new-range-rover-for-sale-ocala-fl/#:~:text=The%20Standard%20Wheelbase%202020%20Range,with%208%2Dspeed%20automatic%20transmission.
Sen, W., Rahman, K. A., & Tanim, I. K. (2019). Experimental and CFD analysis on car with several types of vortex generators. In Proceedings of the international conference on mechanical engineering and renewable energy (pp. 11-13).
Vedrtnam, A., & Sagar, D. (2019). Experimental and simulation studies on aerodynamic drag reduction over a passenger car. International Journal of Fluid Mechanics Research, 46(1). Retrieved from https://www.dl.begellhouse.com/journals/71cb29ca5b40f8f8,075354f82a6f0e6f,232808716449c7e1.html
Yadav, A., Rawal, P., & Mishra, R. K. (2018). Modelling and simulation of aerodynamic performance of Vortex generators for hatch back type cars. Vibroengineering Procedia, 21, 131-136. Retrieved from https://www.extrica.com/article/20399