International Journal of Vehicle Structures and Systems

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Investigation of Flow Induced Structural and Acoustic Behaviour of a Flat Solar Panel Mounted on a Mini Bus Roof Top


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1 Sardar Patel College of Engg., Mumbai, India
 

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External fitting of a flat solar panel on a vehicle at its roof top changes the aerodynamics of flow around it. A local variation of pressure and velocity parameters around the solar panel at increasing speed and yaw angle may lead to structural instability and acoustic performance deterioration of the vehicle. Present paper addresses this issue numerically using ANSYS Fluent software. The investigation consists of three steps - flow analysis, structural analysis and acoustic analysis which focus more on flat solar panel and its supporting pillars. The vehicle speed is varied up to 100 kmph and yaw angle varied from 0° to 18°. The flow analysis reports pressure and velocity distribution, Structural analysis shows the deformation and stresses induced in panel and supporting pillars and Acoustic analysis captures the change in overall sound pressure level (OASPL) at front and rear location of the vehicle. The result of investigation shows no significant effect of flow induced effect on solar panel structure. Change in OASPL at front and rear end is observed to be marginal only.

Keywords

Mini Bus, Solar Panel, Co-Efficient of Drag and Lift, Yaw Angle, Structural, Acoustic Analysis.
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  • S. Ahmed, G. Ramm and G. Faltin. 1984. Some salient features of the time-averaged ground vehicle wake, SAE Technical Paper 840300. https://doi.org/10.4271/840300.

  • G. Vino, S. Watkin, P. Mousley, J. Watmuff and S. Prasad. 2005. Flow structures in the near wake of Ahmed model, J. Fluids and Structures, 20(5), 673-695. https://doi.org/10.1016/j.jfluidstructs.2005.03.006.

  • A. Rodrigues, A. Cervieri, L.C. Gertz and M.A. Telh. 2014. Aerodynamic analysis of a vehicle minibus, SAE Technical Paper 2014-36-0327. https://doi.org/10.4271/2014-36-0327.

  • E.A. Mohamed, M.N. Radhwi, and A.F.A. Gawad. 2015. Computational investigation of aerodynamic characteristics and drag reduction of a bus model, American J. Aerospace Engg., 2(1-1), 64-73.

  • J. Wang, X. Hu, Y. Zhang and B. Yang. 2011. Research of aerodynamic characteristics about mini bus, Applied Mech. and Material, 97-98, 752-755.

  • S. Thorat and G.A.P. Rao. 2011. Computational analysis of intercity bus with improved aesthetic and aerodynamic performance on Indian roads, Int. J. Advance Engg. Tech., 2(3), 103-109.

  • C.N. Patil, K.S. Shashishekar, A.K. Balasubramanian and S.V. Subbaramaiah. 2012. Aerodynamic study and drag co-efficient optimization of passenger vehicle, Int. J. Engg. Research & Tech., 1(7), 1-9.

  • R. Singh, M.K. Gaur and C.S. Malvi. 2012. Study of solar energy operated hybrid mild cars: A review, Int. J. Scientific Engg., and Tech., 1(4), 139-148.

  • N.A. Allgood. 2008. Aerodynamic optimization of a solar-bio-diesel hybrid vehicle, American Inst. of Aero. and Astronautics.

  • S.B.A. Muhammad. 2010. Upper Body Structure Design for Solar Car, Thesis, University Malaysia Pahang.

  • P.K. Augenberges. 2005. Aerodynamics Optimization of Solar Power Race Car, Thesis, Massachusetts Institute of Tech.

  • H. Wolf-Heinrich (Eds.) 1987. Aerodynamics of Road Vehicles - From Fluid Mechanics to Vehicle Engg., Butterworth-Heinemann Ltd.

  • I. Bayraktar, D. Landman and O. Baysal. 2001. Experimental and computational investigation of Ahmed body for ground vehicle aerodynamics, SAE Technical Paper 2001-01-2742. https://doi.org/10.4271/2001-01-2742.

  • M.G. Singh, Q.H.N.A. Nassar and S.R.S. 2009. Numerical investigations on crosswind aerodynamics and its effect on the stability of a passenger car, SAE Technical Paper 2009-26-0059. https://doi.org/10.4271 /2009-26-0059.

  • J. Howell. 2015. Aerodynamic drag of passenger cars at yaw, SAE Int. J. Asseng. Cars-Mech. Syst., 8(1). https://doi.org/10.4271/2015-01-1559

  • Y. Lopes, M. Taylor, T. Lounsberry and G. Fadler. 2017. Aerodynamic drag of a vehicle and trailer combination in yaw, SAE Technical Paper 2017-01-1540. https://doi.org/10.4271/2017-01-1540.

  • M.R.B. Agrewale and R.S. Maurya. 2017. Numerical study of flow structure developed around Ahmed body with roof top solar panel of different geometric configurations, Int. J. Automobile Engg. Research and Development, 127-136.

  • A. Mathew, B. Biju, N. Mathews and V. Pathapadu. 2013. Design and stability analysis of solar panel supporting structure subjected to wind force, Int. J. Engg. Research & Tech., 2 (12), 559-565.

  • R. Naik, V.B. Melmari and A. Adeppa. 2013. Analysis and optimization solar panel supporting structures using FEM, Int. J. Engg. and Innovative Tech., 2(7), 25-36.

  • J. Jakubec, J. Paulech, V. Kutis, E. Mojto and V. Goga. 2013. Coupled CFD-structural analysis of solar panel parking spot, Transfer Inovacii- 28/2013.

  • A. Mihailidas, K. Panagiotidis and K. Agouridas. 2009. Analysis of solar panel support structures, 3rd ANSA & µETA Int. Conf., Halkidiki Greece.

  • A.R. Goerge. 1990. Automobile aerodynamic noise, SAE Technical Paper 900315. https://doi.org/10.4271/900315.

  • M. Nurul, N. Jamal, A. Firoz and W. Simon. 2013. Computational fluid dynamics study of vehicle A-pillar aero-acoustics, Applied Acoustics, 74(6), 882-896. https://doi.org/10.1016/j.apacoust.2012.12.011 [24] Y Mukkamala, S. Devabhaktuni and V.G. Rajkumar. 2016. Computational aero-acoustic modelling of external rear-view mirrors on a mid-sized sedan, Noise & Vibration Worldwide, 47(1-2), 7-16. https://doi.org/10.1177/0957456516655224.

  • N. Oettle, M. Meskine, S. Senthooran and A. Bissell. 2015. A computational approach to assess buffeting and broadband noise generated by a vehicle sunroof, SAE Int. J. Passeng. Cars-Mech. Syst, 8(1). https://doi.org/10.4271/2015-01-1532

  • E. Johansson. 2013. Aeroacoustic Study on The Roofbar of a Truck using CFD, Master Thesis, Chalmers University of Technology, Sweden.

  • B. Andersson, R. Andersson, L. Hakansson, M. Mortensen, R. Sudiyo and B. Wachem. 2011. Computational Fluid Dynamics for Engineers, Cambridge University Press. https://doi.org/10.1017/CBO9781139093590


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  • Investigation of Flow Induced Structural and Acoustic Behaviour of a Flat Solar Panel Mounted on a Mini Bus Roof Top

Abstract Views: 550  |  PDF Views: 144

Authors

Mohammad Rafiq B. Agrewale
Sardar Patel College of Engg., Mumbai, India
R. S. Maurya
Sardar Patel College of Engg., Mumbai, India

Abstract


External fitting of a flat solar panel on a vehicle at its roof top changes the aerodynamics of flow around it. A local variation of pressure and velocity parameters around the solar panel at increasing speed and yaw angle may lead to structural instability and acoustic performance deterioration of the vehicle. Present paper addresses this issue numerically using ANSYS Fluent software. The investigation consists of three steps - flow analysis, structural analysis and acoustic analysis which focus more on flat solar panel and its supporting pillars. The vehicle speed is varied up to 100 kmph and yaw angle varied from 0° to 18°. The flow analysis reports pressure and velocity distribution, Structural analysis shows the deformation and stresses induced in panel and supporting pillars and Acoustic analysis captures the change in overall sound pressure level (OASPL) at front and rear location of the vehicle. The result of investigation shows no significant effect of flow induced effect on solar panel structure. Change in OASPL at front and rear end is observed to be marginal only.

Keywords


Mini Bus, Solar Panel, Co-Efficient of Drag and Lift, Yaw Angle, Structural, Acoustic Analysis.

References





DOI: https://doi.org/10.4273/ijvss.11.1.09