A large-eddy simulation of diesel-like gas jets
by Sergio Hoyas; Antonio Gil; Juan Manuel Mompó-Laborda; Dung Khuong-Anh
International Journal of Vehicle Systems Modelling and Testing (IJVSMT), Vol. 6, No. 3/4, 2011

Abstract: Some aspects of the transient evolution of diesel-like gas jets by means of large-eddy simulation (LES) are discussed in this work. In order to understand the relationship between the inlet boundary condition and the development of the turbulent motions of the diesel sprays, a 3D injection chamber is simulated. The main assumption of the setup is the turbulent gas jet theory hypothesis applied to the inlet boundary conditions. Validation of the results is achieved by comparing with both experimental diesel spray measurements and trusted Reynolds-averaged Navier-Stokes (RANS) simulations. Results show that reasonable simulation of turbulent patterns from one diameter distant from the inlet boundary condition is achieved.

Online publication date: Thu, 16-Oct-2014

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