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CORRELATIONS IN NATURAL TURBULENT CONVECTION. THE INFLUENCE OF PRESSURE AND GAS NATURE.

CORRELATIONS EN CONVECTION NATURELLE TURBULENTE. INFLUENCE DE LA PRESSION ET DE LA NATURE DU GAZ.

Author(s) : LOCHET R., LEMONNIER D., DOAN K. S.

Type of article: Article

Summary

SPACE-TIME CORRELATIONS OF VELOCITY AND TEMPERATURE FLUCTUATIONS IN THREE DIRECTIONS ARE MEASURED. THE RESULTS ACHIEVED ENABLE TO ESTIMATE THE TRANSVERSE, NORMAL AND LONGITUDINAL COMPONENTS OF THE SCALES OF TURBULENCE. IN THE CASE OF A VERTICAL ISOTHERM FLAT PLATE SET IN A FLUID (AIR OR N2O) AT VARIOUS PRESSURES, THE VELOCITY FIELD IS FOUND TO BE THE LESS SENSITIVE ONE TO THE CHANGE OF PRESSURE OR GAS NATURE. IT KEEPS THE HIGHEST < MEMORY > OF TURBULENCE, PARTICULARLY IN THE MAIN DIRECTION OF THE FLOW.

Details

  • Original title: CORRELATIONS EN CONVECTION NATURELLE TURBULENTE. INFLUENCE DE LA PRESSION ET DE LA NATURE DU GAZ.
  • Record ID : 1984-0905
  • Languages: French
  • Source: International Journal of Heat and Mass Transfer - vol. 26 - n. 8
  • Publication date: 1983/08

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