Influence of Inflow Boundary Conditions on High-Pressure Fuel Injection: Assessment Based on Large Eddy Simulation Approach
Žilić A, Pachler K, Cristofaro M (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 13
Pages Range: 123-134
Journal Issue: 2
Abstract
The Engine Combustion Network case Spray A with a high-pressure fuel injection is at typical operating conditions of Diesel engines. Detailed pieces of information on this experiment are available, which supports a high-fidelity Large Eddy Simulation (LES) with real fluid thermodynamics. An internal injector flow simulation with the needle movement measured during the experiments is used to provide a realistic boundary condition for the fuel spray simulation. Two spray simulations have been conducted: one with a constant velocity profile and one with the velocity distribution obtained from a separate injector internal flow simulation. Peculiar emphasis is placed on the velocity and turbulence distribution to quantify the influence of spray inlet boundary conditions. The fuel injection is modeled with a single-phase approach applying adequate resolution to capture phase boundaries. Observations from simulation results indicate a significant influence of the inlet boundary conditions on fuel distribution and penetration length, turbulent mixing, and enthalpy propagation.
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Germany (DE)How to cite
APA:
Žilić, A., Pachler, K., & Cristofaro, M. (2020). Influence of Inflow Boundary Conditions on High-Pressure Fuel Injection: Assessment Based on Large Eddy Simulation Approach. SAE International Journal of Engines, 13(2), 123-134. https://dx.doi.org/10.4271/03-13-02-0009
MLA:
Žilić, Amir, Klaus Pachler, and Marco Cristofaro. "Influence of Inflow Boundary Conditions on High-Pressure Fuel Injection: Assessment Based on Large Eddy Simulation Approach." SAE International Journal of Engines 13.2 (2020): 123-134.
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