Transactions of Nanjing University of Aeronautics & Astronautics
Numerical Simulation on Spray Characteristics of Fuel Jet in a Crossflow
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Abstract:
Spray performance downward the plain orifice injector was numerically simulated by using Fluent. The primary breakup and the secondary breakup were both focused. To capture the instantaneous interface of two-phase flow and multiscale structure of liquid spray more accurately， an adaptive mesh refinement （AMR） method was adopted. Firstly， the velocity distribution and jet structure were obtained. Then， with different coupled VOF （Volume of Fluid）-DPM （Discrete Phase model） strategies， the jet trajectory， the column breakup point， and the time-average SMD distribution were analyzed and compared. Meanwhile， the experimental data and several empirical formulas were applied to verify the numerical value. The results suggested that the numerical simulation could accord well with experimental data and a certain formulaKeywords:
Project Supported:
This work was supported by the National Natural Science Foundation of China （No. 91741118）.
Clc Number:
V231.2
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