New Approach of Gas-Liquid Computational Fluid Dynamics Simulations for the Study of Minimum Quantity Cooling With Airblast Plain-Jet Injectors

作者：Diakodimitris Christophe^*; Iskandar Youssef R; Hendrick Patrick; Slangen Pierre

来源：Journal of Manufacturing Science and Engineering, 2013, 135(4): 041009.

DOI：10.1115/1.4024632

Due to the complexity of multiphase flows, they are often studied with numerical simulations. These simulations must be validated with experimental results. This paper introduces a new approach to initialize the continuous phase of gas-liquid flows generated by airblast nozzles for microlubrication applications with a recently modified commercial computational fluid dynamics (CFD) code FINE (TM)/Open. Microlubrication is a technology used in metal machining where the coolant flow rate is lower than with conventional flood cooling. In this paper, single-phase gas and two-phase liquid-gas flows are studied. The continuous phase is simulated using Reynolds-averaged Navier-Stokes (RANS) equations coupled with a k-epsilon turbulence model and the dispersed phase is simulated using a Lagrangian method. To validate these simulations, particle image velocimetry (PIV) and particle dynamics analysis (PDA) measurements have been performed. This study illustrates the possibility of performing complex two-phase simulations with the help of single-phase studies to initialize the continuous phase of the flow (i.e., the gas). The single-phase flow also helps in estimating the magnitudes of the droplet velocities.

• 出版日期2013-8