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Effect of Different Diesel Fuels on Formation of the Cavitation Phenomena

Authors: Mohammadreza Nezamirad, Sepideh Amirahmadian, Nasim Sabetpour, Azadeh Yazdi, Amirmasoud Hamedi


Cavitation inside a diesel injector nozzle is investigated numerically in this study. The Reynolds Stress Navier Stokes set of equations (RANS) are utilized to investigate flow behavior inside the nozzle numerically. Moreover, K-ε turbulent model is found to be a better approach comparing to K-ω turbulent model. The Winklhofer rectangular shape nozzle is also simulated in order to verify the current numerical scheme, and with the mass flow rate approach, the current solution is verified. Afterward, a six-hole real size nozzle was simulated and it was found that among the different fuels used in this study with the same condition, diesel fuel provides the largest length of cavitation. Also, it was found that at the same boundary condition, rapeseed methyl ester (RME) fuel leads to the highest value of discharge coefficient and mass flow rate.

Keywords: cavitation, diesel fuel, CFD, real size nozzle, discharge coefficient

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[1] Zeidi, S. and M. Mahdi, Investigation the effects of injection pressure and compressibility and nozzle entry in diesel injector nozzle's flow. Journal of Applied and Computational Mechanics, 2015. 1(2): p. 83-94.
[2] Zeidi, S. and M. Mahdi. Investigation of viscosity effect on velocity profile and cavitation formation in Diesel injector nozzle. in Proceedings of the 8th international conference on internal combustion engines. 2014.
[3] Zeidi, S. M. J. and M. Mahdi, Evaluation of the physical forces exerted on a spherical bubble inside the nozzle in a cavitating flow with an Eulerian/Lagrangian approach. European Journal of Physics, 2015. 36(6).
[4] Giannadakis, E., M. Gavaises, and C. Arcoumanis, Modelling of cavitation in diesel injector nozzles. Journal of Fluid Mechanics, 2008. 616: p. 153-193.
[5] Farrell, K. J., Eulerian/Lagrangian analysis for the prediction of cavitation inception. Journal of Fluids Engineering-Transactions of the Asme, 2003. 125(1): p. 46-52.
[6] Ma, J. S., G. L. Chahine, and C.T. Hsiao, Spherical bubble dynamics in a bubbly medium using an Euler-Lagrange model. Chemical Engineering Science, 2015. 128: p. 64-81.
[7] Maeda, K. and T. Colonius, A source term approach for generation of one-way acoustic waves in the Euler and Navier-Stokes equations. Wave Motion, 2017. 75: p. 36-49.
[8] Peters, A., U. Lantermann, and O. el Moctar, Simulation of an Internal Nozzle Flow Using an Euler-Lagrange Method, in Proceedings of the 10th International Symposium on Cavitation (CAV2018), J. Katz, Editor. 2018, ASME Press. p. 0.
[9] Ellahi, R., et al., Simulation of cavitation of spherically shaped hydrogen bubbles through a tube nozzle with stenosis. International Journal of Numerical Methods for Heat & Fluid Flow, 2020. 30(5): p. 2535-2549.
[10] Wang, Y. -C. and C. Brennen, Shock waves and noise in the collapse of a cloud of cavitation bubbles. 1995.
[11] Hsiao, C. T., G. L. Chahine, and H. L. Liu, Scaling effect on prediction of cavitation inception in a line vortex flow. Journal of Fluids Engineering-Transactions of the Asme, 2003. 125(1): p. 53-60.
[12] Pearce, D., Pressure waves and cavitation in diesel fuel injection rate characterisation. 2017, Imperial College London.
[13] Fu, Y., Z. P. Xie, and W. G. Zhao, Prediction Method of Cavitation Jet Wave Attenuation Based on Five-Equation Two-Fluid Model. Mathematical Problems in Engineering, 2020. 2020.
[14] Schnerr, G. H. and J. Sauer. Physical and numerical modeling of unsteady cavitation dynamics. in Fourth international conference on multiphase flow. 2001. ICMF New Orleans.
[15] Winklhofer, E., et al. Comprehensive hydraulic and flow field documentation in model throttle experiments under cavitation conditions. in Proceedings of the ILASS-Europe conference, Zurich. 2001