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The analysis of turbulent flow structure in a free jet

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Języki publikacji
EN
Abstrakty
EN
The paper presents the results of numerical calculations and experimental investigations of free jets under variable turbulence in the jet outlet. The research concerns two cases: the issue of an unstimulated axisymmetric jet to stationary surroundings and the impinge of an unstimulated jet on a flat fixed surface. The results of the numerical calculations have been presented in graphs showing the impact of the changes in the initial turbulence on the structure of the turbulence in the jet. A comparison of the numerical calculations with own results of the experimental investigations has been made for selected cases.
Rocznik
Strony
917--928
Opis fizyczny
Bibliogr. 16 poz., rys., wykr.
Twórcy
Bibliografia
  • Badens E., Boutin O. and Charbit G. (2005): Laminar jet dispersion and jet atomization in pressurized carbon dioxide. - Journal of Supercritical Fluids, vol.36, pp.81-90.
  • Bartoszewicz J. (2000): Modelling of turbulence in axis-symmetrical jet. - PhD Thesis, Poznan University of Technology, Poznań.
  • Bartoszewicz J. and Bogusławski L. (2007): The analysis of flow velocity in an air filter. - Combustion Engines, vol.131, No.4, pp.53-61.
  • Bogusławski L. (2007): Estimation of the influence of inflow turbulence on heat convection from a sphere surface. - Journal of Theoretical and Applied Mechanics, vol.45, No.3, pp.505-511.
  • Bogusławski L. and Popiel Cz. (1979): Flow structure of the free round turbulent jet in the initial region. - Journal of Fluid Mechanics, vol.90, pp.531-539.
  • Gao N. and Ewing D. (2006): Investigation of the effect of confinement on the heat transfer to round impinging jets exiting a long pipe. - International Journal of Heat and Fluid Flow, vol.27, pp.33-41.
  • Gutmark E. and Wygnański I. (1976): The planar turbulent jet. - Journal of Fluid Mechanics, vol.73, No.3, pp.465-495.
  • Jung-Yang S., Yi-Ming T. and Zheng-Chieh Ch. (2007): Impingement heat transfer of staggered arrays of air jets confined in a channel. - International Journal of Heat and Mass Transfer, vol.50, pp.3718-3727.
  • Launder B.E. and Spalding D.B. (1974): The numerical computation of turbulent flows. - Comp. Mech. in Appl. Mech. & Eng., vol.3, pp.269-289.
  • Launder B.E., Spalding D.B. and Rodi W. (1975): Progress in the development of a Reynolds stress turbulence closure. - Journal of Fluid Mechanics, vol.68, pp.537-566.
  • Olsson E.E.M., AhrneL.M. and Trägårdh A.C. (2005): Flow and heat transfer from multiple slot air jets impinging on circular cylinder. - Journal of Food Engineering, vol.67, pp.273.
  • Pathak M., Anupam Dewan and Anoop K. Dass (2006): Computational prediction of a slightly heated turbulent rectangular jet discharged into a narrow channel crossflow using two different turbulence models. - International Journal of Heat and Mass Transfer, vol.49, pp.3914-3928.
  • Rajani P. Satti and Ajay K. Agrawal (2006): Flow structure in the near-field of buoyant low-density gas jets. - International Journal of Heat and Fluid Flow, vol.27, pp.336-347.
  • Ravinesh C. D., Graham J.N. and Jianchun M. (2007): Comparison of turbulent jets issuing from rectangular nozzles with and without sidewalls. - Experimental Thermal and Fluid Science, vol.32, pp.596-606.
  • Rosten H.I. and Spalding D.B. (1985): The Phoenics beginners guides. - CHAM report, No. TR100, CHAM Limited, Wimbledon, England.
  • Youngjun Cho, Hazim B. Awbi and Taghi Karimipanah (2008): Theoretical and experimental investigation of wall confluent jets ventilation and comparison with wall displacement ventilation. - Building and Environment, vol.43, pp.1091-1100.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPZ5-0003-0001
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