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                                       Details van artikel 2 van 7 gevonden artikelen
 
 
  CONDENSING PHENOMENA OF A SINGLE VAPOR BUBBLE INTO SUBCOOLED WATER
 
 
Titel: CONDENSING PHENOMENA OF A SINGLE VAPOR BUBBLE INTO SUBCOOLED WATER
Auteur: Kamei, Shuya
Hirata, Masaru
Verschenen in: Experimental heat transfer
Paginering: Jaargang 3 (1990) nr. 2 pagina's 173-182
Jaar: 1990-07-01
Inhoud: Experiments have been carried out to investigate direct contact condensation of saturated vapor bubbles introduced into a quiescent subcooled water environment. The experiments were performed for a range of pressures from atmospheric to 1 MPa, for subcooling from 10 to 70 K, and for initial bubble diameters of about 10 mm. Flow visualization by highspeed motion pictures was based on a frame-by-frame analysis. The photographs show that the successive shapes of the bubbles during their collapse histories proceeded from a sphere to a hemisphere, to an ellipsoid, to a sphere, and finally to collapse. Two-dimensional photographs clearly show that the cavities of the bubbles during their collapse histories proceeded from the bottom to the top. The time to collapse increased with increasing pressure difference. The rising velocities of the bubbles were essentially constant, with an overall range of 20-25 cm/s.
Uitgever: Taylor & Francis
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

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