Predictor–Corrector Method for Scramjet Inlet Air Mass Flow Rate Measurement

Jiao, Xiaoliang; Wang, Zhongqi; Yu, Daren

doi:10.2514/1.j055831

AIAA Journal

2017

DOI: 10.2514/1.j055831

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Predictor–Corrector Method for Scramjet Inlet Air Mass Flow Rate Measurement

Xiaoliang Jiao

Zhongqi Wang

Daren Yu

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2024

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Review of atomization characteristics of liquid jets in crossflow

Zhang,

Tian,

2024

Physics of Fluids

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The atomization process of liquid fuels is vital in scramjet engines. The level of atomization directly impacts the subsequent evaporation, mixing, and combustion processes. Therefore, understanding the atomization mechanism of liquid jets in crossflow is necessary to promote the mixing process of scramjet engines and improve the combustion efficiency. This article overviews the atomization process of liquid jets in transverse airflow based on the breakup mechanism, atomization characteristics, and factors affecting atomization. The deformation and fragmentation of droplets are influenced primarily by the Weber number and have little correlation with the Reynolds number. There are similarities in the properties between the primary fragmentation of liquid jets and the breakup of liquid droplets in crossflow. The primary breakup of liquid jets in crossflow is characterized primarily by continuous jet column breakup. The Rayleigh–Taylor instability causes columnar breakup, while the Kelvin–Helmholtz instability causes surface breakup in the jet. The size distribution of droplets follows C-, I-, or S-shaped distributions, while the velocity distribution of droplets follows an inverse C-shape. Finally, the shortcomings of current research are pointed out, namely, the lack of research on the jet breakup mechanism in crossflow under actual scramjet engine configurations and inflow conditions. In the future, it can be combined with artificial intelligence to reveal the jet breakup mechanism under actual working conditions and establish a wide range of theoretical prediction models.

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Review of atomization characteristics of liquid jets in crossflow

Zhang,

Tian,

2024

Physics of Fluids

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Predictor–Corrector Method for Scramjet Inlet Air Mass Flow Rate Measurement

Cited by 1 publication

References 31 publications

Review of atomization characteristics of liquid jets in crossflow

Review of atomization characteristics of liquid jets in crossflow

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