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Atomization and Sprays

Published 12 issues per year

ISSN Print: 1044-5110

ISSN Online: 1936-2684

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Indexed in

THEORETICAL ANALYSIS OF SURFACE WAVES ON A ROUND LIQUID JET IN A GASEOUS CROSSFLOW

Volume 24, Issue 1, 2014, pp. 23-40
DOI: 10.1615/AtomizSpr.2013008203
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ABSTRACT

A theoretical investigation is described to study the surface waves on a round liquid jet in a gaseous crossflow, especially Rayleigh-Taylor waves. The linear stability analysis was used to derive the dispersion relation. The acceleration on the liquid jet due to the transverse aerodynamic force was considered in the relation. Results indicate that the hydrodynamic instability is dominated by three terms which are caused by jet velocity, surface tension, and aerodynamic force, respectively. The surface tension contributes to the instability when the wave number is less than unity. Both gas and jet velocities can affect the optimum wavelength and the surface wave growth rate. The critical momentum ratio, at which the contribution of the liquid jet Weber number to the maximum growth rate is as large as that of the cross air Weber number to the maximum growth rate, decreases with the gas Weber number exponentially. If the momentum ratio is less than the critical value, the axial optimum wavelength can be expressed as a power function of gas Weber number. Otherwise, free jet instability theory can be used to study the surface waves on the liquid jet in cross airflow.

CITED BY
  1. Broumand M., Birouk M., Liquid jet in a subsonic gaseous crossflow: Recent progress and remaining challenges, Progress in Energy and Combustion Science, 57, 2016. Crossref

  2. Li Xiaoyi, Soteriou Marios C., High fidelity simulation and analysis of liquid jet atomization in a gaseous crossflow at intermediate Weber numbers, Physics of Fluids, 28, 8, 2016. Crossref

  3. Li Xiaoyi, Soteriou Marios C., Detailed numerical simulation of liquid jet atomization in crossflow of increasing density, International Journal of Multiphase Flow, 104, 2018. Crossref

  4. Sinha Anubhav, Surface Waves on Liquid Jet in Crossflow: Effect of Injector Geometry, AIAA Journal, 57, 10, 2019. Crossref

  5. Fu Qing-Fei, Yao Mu-Wei, Yang Li-Jun, Xie Luo, Atomization Model of Liquid Jets Exposed to Subsonic Crossflows, AIAA Journal, 58, 5, 2020. Crossref

  6. Shi Weidong, Li Fengyu, Lin Qizhao, Effects of nanoparticles on the instability of liquid jets in a gaseous crossflow, International Journal of Multiphase Flow, 133, 2020. Crossref

  7. Tretola Giovanni, Vogiatzaki Konstantina, Navarro-Martinez Salvador, Effect of the density ratio variation on the dynamics of a liquid jet injected into a gaseous cross-flow, Physics of Fluids, 33, 9, 2021. Crossref

  8. Salauddin Sheikh, Flores Wilmer, Otero Michelle, Ahmed Kareem A., Modal Analysis on Hydrodynamic Coherent Structures of Liquid Fuel jet in Crossflow, AIAA Scitech 2021 Forum, 2021. Crossref

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