Investigation of turbulent inflow specification in Euler–Lagrange simulations of mid-field spray
- Univ. of Florida, Gainesville, FL (United States). Dept. of Mechanical and Aerospace Engineering; Univ. of Florida, Gainesville, FL (United States)
- Univ. of Washington, Seattle, WA (United States). Dept. of Mechanical Engineering
- Univ. of Florida, Gainesville, FL (United States). Dept. of Mechanical and Aerospace Engineering
The process of atomization of a liquid jet by a parallel high-speed gas stream results in a spray, whose downstream development is of considerable interest to several applications. The round jet spray can be spatially divided into (i) a near-field (near-nozzle) region of liquid atomization and (ii) a downstream mid-field region of fully-dispersed droplets. In order to accurately model mid-field droplet dispersion, this work aims at developing a rigorous and robust injection model for Euler–Lagrange spray simulations. Results from experiments are used to obtain the relevant droplet number density, size distribution, and mean and standard deviation velocity distributions of the injection model, systematically in a step-by-step process. Two-phase large eddy simulations are performed by stochastically generating the Lagrangian droplets at the inlet of the mid-field region. Number flux, diameter distribution, mean velocity, and other time-averaged statistics at several downstream locations are shown to agree well with the corresponding experimental data.
- Research Organization:
- Univ. of Florida, Gainesville, FL (United States)
- Sponsoring Organization:
- Office of Naval Research (ONR); USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- NA0002378
- OSTI ID:
- 1850326
- Journal Information:
- Physics of Fluids, Journal Name: Physics of Fluids Journal Issue: 3 Vol. 33; ISSN 1070-6631
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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