{"title":"具有特定速度剖面特征的水下射流生成算法的开发","authors":"A. A. Spasova, J. S. Zayko","doi":"10.1134/S0021894423040065","DOIUrl":null,"url":null,"abstract":"<p>An algorithm for controlling submerged jets is developed to calculate the geometry of a jet generator, which provides a velocity profile and (or) the required characteristics of its linear instability in the initial section of the jet. A class of jet generators is considered, whose geometry is similar to the geometry of the device manufactured at the Institute of Mechanics of the Moscow State University. The control algorithm is based on the gradient descent method for the minimization of the functional that relates the parameterization of the forming device geometry and the characteristics of the velocity profile, which is formed by this device. The algorithm operation is tested on the example of a functional describing the deviations of the jet velocity profile from the set one.</p>","PeriodicalId":608,"journal":{"name":"Journal of Applied Mechanics and Technical Physics","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"DEVELOPMENT OF AN ALGORITHM FOR GENERATING A SUBMERGED JET WITH SPECIFIED VELOCITY PROFILE CHARACTERISTICS\",\"authors\":\"A. A. Spasova, J. S. Zayko\",\"doi\":\"10.1134/S0021894423040065\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>An algorithm for controlling submerged jets is developed to calculate the geometry of a jet generator, which provides a velocity profile and (or) the required characteristics of its linear instability in the initial section of the jet. A class of jet generators is considered, whose geometry is similar to the geometry of the device manufactured at the Institute of Mechanics of the Moscow State University. The control algorithm is based on the gradient descent method for the minimization of the functional that relates the parameterization of the forming device geometry and the characteristics of the velocity profile, which is formed by this device. The algorithm operation is tested on the example of a functional describing the deviations of the jet velocity profile from the set one.</p>\",\"PeriodicalId\":608,\"journal\":{\"name\":\"Journal of Applied Mechanics and Technical Physics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2023-10-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Applied Mechanics and Technical Physics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0021894423040065\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MECHANICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Mechanics and Technical Physics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0021894423040065","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MECHANICS","Score":null,"Total":0}
DEVELOPMENT OF AN ALGORITHM FOR GENERATING A SUBMERGED JET WITH SPECIFIED VELOCITY PROFILE CHARACTERISTICS
An algorithm for controlling submerged jets is developed to calculate the geometry of a jet generator, which provides a velocity profile and (or) the required characteristics of its linear instability in the initial section of the jet. A class of jet generators is considered, whose geometry is similar to the geometry of the device manufactured at the Institute of Mechanics of the Moscow State University. The control algorithm is based on the gradient descent method for the minimization of the functional that relates the parameterization of the forming device geometry and the characteristics of the velocity profile, which is formed by this device. The algorithm operation is tested on the example of a functional describing the deviations of the jet velocity profile from the set one.
期刊介绍：
Journal of Applied Mechanics and Technical Physics is a journal published in collaboration with the Siberian Branch of the Russian Academy of Sciences. The Journal presents papers on fluid mechanics and applied physics. Each issue contains valuable contributions on hypersonic flows; boundary layer theory; turbulence and hydrodynamic stability; free boundary flows; plasma physics; shock waves; explosives and detonation processes; combustion theory; multiphase flows; heat and mass transfer; composite materials and thermal properties of new materials, plasticity, creep, and failure.
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