Yu. A. Litvinenko, A. A. Smyatskikh, M. V. Litvinenko
{"title":"Effect of Acoustic Excitation on Colliding Laminar Microjets","authors":"Yu. A. Litvinenko, A. A. Smyatskikh, M. V. Litvinenko","doi":"10.1134/S0015462824603188","DOIUrl":null,"url":null,"abstract":"<p>The results of studies of the jet formation process during the interaction of two colliding axisymmetric laminar air microjets. The axes of symmetry of the tubes lie in the same plane and intersect at an angle of 60°. The distance between the near ends of the tubes is equal to 4 mm. The outflow with identical velocities was implemented. As a result of the experiment, the distinctive features of the secondary jet formation under natural conditions and under the impact of an external periodic disturbance were revealed. It was found that the resulting jet is formed in the plane orthogonal to the tubes. Under natural conditions, a secondary jet with a beam angle greater than 115° is formed and represents a flattened jet. In the case of the external impact by a periodic acoustic signal, after the interaction of the microjets, a slight flattening appears with the development of secondary oscillations in the orthogonal plane and subsequent rotation with respect to the plane of the tubes.</p>","PeriodicalId":560,"journal":{"name":"Fluid Dynamics","volume":"59 6","pages":"1822 - 1830"},"PeriodicalIF":1.0000,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fluid Dynamics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0015462824603188","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MECHANICS","Score":null,"Total":0}
引用次数: 0
Abstract
The results of studies of the jet formation process during the interaction of two colliding axisymmetric laminar air microjets. The axes of symmetry of the tubes lie in the same plane and intersect at an angle of 60°. The distance between the near ends of the tubes is equal to 4 mm. The outflow with identical velocities was implemented. As a result of the experiment, the distinctive features of the secondary jet formation under natural conditions and under the impact of an external periodic disturbance were revealed. It was found that the resulting jet is formed in the plane orthogonal to the tubes. Under natural conditions, a secondary jet with a beam angle greater than 115° is formed and represents a flattened jet. In the case of the external impact by a periodic acoustic signal, after the interaction of the microjets, a slight flattening appears with the development of secondary oscillations in the orthogonal plane and subsequent rotation with respect to the plane of the tubes.
期刊介绍：
Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.
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