Dynamic behaviour of a boundary layer with condensation along a flat plate: comparison with suction |
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Authors: | F Legay-Desesquelles B Prunet-Foch |
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Affiliation: | Laboratoire d'Aérothermique du C.N.R.S., 4ter route des Gardes, F 92190, Meudon, France |
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Abstract: | The dynamical behaviour of laminar and turbulent boundary layers inside which a condensation phenomena exists, has been experimentally and numerically studied. The temperature difference between the exchange cold wall and the saturated air-steam flow at atmospheric pressure and moderate temperature (
0–90°C) does not exceed 20°C. Evaluation of the mass flux at the wall in such a case, allows the prediction of the ‘equivalent suction rate’ in a sucked boundary layer for the same external conditions but without any temperature difference. The comparison between the two phenomena reveals interesting similarities and some differences. |
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