Improving the Flow-Through Section of the Intercooler of a Racing Car Using Numerical Simulation
Authors: Borisenko I.V., Grishin Yu.A. | Published: 26.06.2018 |
Published in issue: #6(699)/2018 | |
Category: Energy and Electrical Engineering | Chapter: Heat Engines | |
Keywords: racing car, piston engine, charge air cooler, numerical simulation |
To participate in international motorsport competitions Formula SAE, BMSTU student design team developed a racing car with a Yamaha WR450F internal combustion engine. The engine was equipped with a turbocharger and an intercooler to increase the engine power. Numerical simulation of the spatial flow was performed using the ANSYS software for several variants of the flow-through section of the intercooler. Based on the simulation results, the flow-through section that provided a reduction in weight of the intercooler and a significant decrease in the resistance of the cooled air flow was chosen. Using this design, it is possible to increase the engine power and, as a result, improve all the technical characteristics of the racing car. For the mathematical description of the flow, a system of viscous gas equations in the Navier-Stokes form was applied. The processes of turbulent mixing were taken into account through using both the k–ε and the k–ς–f models.
References
[1] Grishin Y.A., Bakulin V.N. New calculation schemes based on the large-particle method for modeling gas-dynamic problems. Doklady Physics, 2015, vol. 60, no. 12, pp. 555–558.
[2] Grishin Y.A., Bakulin V.N. Numerical Investigation of Flow in a Centrifugal Compressor. Journal of Engineering Physics and Thermophysics, 2015, vol. 88, no. 5, pp. 1274–1279.
[3] Grishin Yu.A., Zenkin V.A., Khmelev R.N. Boundary conditions for numerical calculation of gas exchange in piston engines. Journal of Engineering Physics and Thermophysics, 2017, vol. 90, is. 4, pp. 965–970, doi 10.1007/s10891-017-1644-4.
[4] Grishin Iu.A., Dorozhinskii R.K., Zenkin V.A. Chislennoe modelirovanie turbulentnogo techeniia cherez klapany porshnevykh dvigatelei [Numerical modeling of turbulent flow through valves of piston engines]. Vestnik mashinostroeniia [Russian Engineering Research]. 2016, no. 1, pp. 24–28.
[5] Grishin Yu.A., Bakulin V.N., Zenkin V.A. Chislennoe modelirovanie produvki vpusknyh okon dvuhtaktnyh dvigateley [Numerical modeling of inlet ports testing of two-strokes engines]. Vestnik MAI [Bulletin of the MAI]. 2013, vol. 20, no. 1, pp. 79–87.
[6] Grishin Yu.A. Chislennoe reshenie prakticheskih zadach gazovoy dinamiki v porsh-nevyh dvigatelyah [The numerical solution of practical problems of gas dynamics in re-ciprocating engines]. Izvestiya TulGU, Ser. Avtomobil’nyy transport [Proceedings of the TSU. Ser. Automobile Transport]. 2005, is. 9, pp. 173–179.
[7] Grishin Yu.A. Metod harakteristik s plavayushchey setkoy i modelirovanie volnovyh protsessov v porshnevyh dvigatelyah [Method of characteristics with fluent grid and wave processes simulation in piston engines]. Matematicheskoe modelirovanie [Mathematical Models and Computer Simulations]. 2009, vol. 21, no. 5, pp. 94–104.
[8] Grishin Y. Unsteady flow pulses interaction with a turbine. Meeting the Future of Combustion Engines. 28th CIMAC World Congress, Helsinki, 6–10 June 2016, no. 308, pp. 1–11.
[9] Kuleshov A.S. Use of Multi-Zone DI Diesel Spray Combustion Model for Simulation and optimization of Performance and Emissions of Engines with Multiple Injection. SAE Technical Papers, 2006, no. 2006-01-1385, pp. 1–17.
[10] Kavtaradze R.Z. Lokal’nyi teploobmen v porshnevykh dvigateliakh [Local heat exchange in piston engines]. Moscow, Bauman Press, 2016. 515 p.
[11] Garbaruk A.V., Strelets M.H., Shur M.L. Modelirovanie turbulentnosti v raschetah slozhnyh techeniy [Modeling of turbulence in calculation of complex flows]. Sankt-Petersburg, Politekh. un-t publ., 2012. 88 p.
[12] Zalizniak V.E. Osnovy vychislitel’noi fiziki. Ch. 1. Vvedenie v konechno-raznostnye metody [Fundamentals of computational physics. Pt 1. Introduction to finite difference methods]. Moscow, Tekhnosfera publ., 2008. 224 p.
[13] Patankar S.V. Chislennye reshenie zadach teploprovodnosti i konvektivnogo teploobmena pri techenii v kanalakh [Numerical solution of problems of thermal conductivity and convective heat transfer in the flow channels]. Moscow, MEI publ., 2003. 312 p.
[14] Fletcher C.A.J. Computational Techniques for Fluid Dynamics 2: Specific Techniques for Different Flow Categories. Springer-Verlag, 1998. 496 p.
[15] Chesnokov S.A., Dunaev V.A. Teplomassoobmen i gorenie v avtomobil’nykh dvigateliakh [Heat and mass transfer and combustion in automobile engines]. Tula, TulGU publ., 2012. 400 p.
[16] ANSYS Fluent v.14.5. Release. 7.3.4. Compressible liquid density method. Available at: http://www.ansys.com (accessed 15 January 2018).