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Volume 34 Issue 3
May  2015
Article Contents

Citation:

Optimal coupled inversion for multi-parameter of jet in flowing ambient fluid

  • Received Date: 2012-09-17
    Accepted Date: 2014-12-10
  • A new multi-parameter optimal inversion method for jet ratio and jet angle is established by coupling data-driven model theory with anisotropic turbulent buoyant jet model with variable density in this paper.In this method,firstly the multi-parameter matching cases of jet ratio and jet angle are computed by the jet model,and the solution space of internal observation site in the computation waters is constructed by numerical simulation results.Secondly,the nonlinear relationship between state variables (dilution degree) and control variables (model multi-parameter) is established by data-driven model theory.Finally the optimal solution is obtained by inputting the requisite dilution degree to the relationship.The numerical results show that multi-parameter integrated optimal inversion method is efficient for the optimal jet parameters and has advantages of jet water mixing with environment water.
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  • [1] CHEUNG S K B,LEUNG D Y L,WANG W,et al.VISJET-A computer ocean outfall modelling system[C]// Proceedings of Computer Graphics International.Geneva:IEEE,2000:75-80.[5]徐高田,韦鹤平.上海市污水治理二期工程白龙港排放口潜没多孔排放污水近区稀释扩散效果研究[J].海洋环境科学,2000,19(4):41-45.[6]周 丰,梁书秀,孙昭晨.动水环境中射流喷角对射流特性影响数值模拟[J].大连理工大学学报,2007,47(4):583-588.[7]SOLOMATINE D P.Data-driven modelling:paradigm,methods,experiences[C]// Proceedings of the 5th International Conference on Hydroinformatics.Cardiff,UK:IWA Publishing,2002:757-763.[8]倪浩清,王能家,周力行.应力代数模型在各向异性湍浮力回流中的应用[J].力学学报,1989,21(1):26-33.
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Optimal coupled inversion for multi-parameter of jet in flowing ambient fluid

  • 1. Laboratory of Environmental Protection in Water Transport Engineering, Tianjin Research Institute of Water Transport Engineering, Tanggu 300456, China;
  • 2. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;
  • 3. School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China

Abstract: A new multi-parameter optimal inversion method for jet ratio and jet angle is established by coupling data-driven model theory with anisotropic turbulent buoyant jet model with variable density in this paper.In this method,firstly the multi-parameter matching cases of jet ratio and jet angle are computed by the jet model,and the solution space of internal observation site in the computation waters is constructed by numerical simulation results.Secondly,the nonlinear relationship between state variables (dilution degree) and control variables (model multi-parameter) is established by data-driven model theory.Finally the optimal solution is obtained by inputting the requisite dilution degree to the relationship.The numerical results show that multi-parameter integrated optimal inversion method is efficient for the optimal jet parameters and has advantages of jet water mixing with environment water.

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