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Experimental study on turbulent characteristics of a vertical jet in wave environment[J]. Chinese Journal of Theoretical and Applied Mechanics, 2009, 41(1): 21-27. DOI: 10.6052/0459-1879-2009-1-2007-025
Citation: Experimental study on turbulent characteristics of a vertical jet in wave environment[J]. Chinese Journal of Theoretical and Applied Mechanics, 2009, 41(1): 21-27. DOI: 10.6052/0459-1879-2009-1-2007-025
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Experimental study on turbulent characteristics of a vertical jet in wave environment

  • The State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024,ChinaThe State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024,China

  • Received Date: January 09, 2007
  • Revised Date: November 20, 2007
    Graphical Abstract
    • Abstract
  • This paper presents a turbulent jet vertically discharged into a flow fieldof regular waves in the intermediate between deep and shallow water usingthe particle image velocimetry (PIV) technique. Phase average method wasused to extract the turbulent velocity from the PIV measurements. Four waveswith different wave heights were applied in the experiments. The resultsfirstly showed that the turbulent characteristics of jets are significantlyaffected by the wave height. The convection term is more sensitive than theturbulent diffusion term for the wave height change. In addition, the ratioof the turbulent diffusion term to the convection term is about 1/8∼1/3 to show that the effect of the turbulent diffusion can't be ignored intime-averaged N-S equations.
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