On présente l'étude des interactions mutuelles entre la phase dispersée et continue dans un écoulement de Couette Taylor. L'introduction de la phase gazeuse se fait par ventilation, et celle de la phase vapeur par diminution de la pression. En régime des premières instabilités, la phase dispersée engendre une modification de l'état d'écoulement, le régime cavitant se caractérisant par une avance à la troisième instabilité. La phase dispersée s'organise d'abord en colliers de bulles le long de l'onde azimutale près du cœur de cellules de Taylor et migre ensuite en paroi du cylindre intérieur dans les zones de outflow.
This paper presents the study of mutual interactions between dispersed and continuous phase in Couette Taylor flow. The introduction of the dispersed phase is obtained by ventilation or by pressure drop in an airtight chamber. In the first instabilities, the dispersed phase generate a modification of the flow state, the cavitating flow being moreover characterised by an advance to the third instability. The dispersed phase first stands along each of the apparent azimuthal waves as a string of individual bubbles located near the core of the Taylor cells and then migrates to the outflow regions near the inner cylinder.
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Keywords: fluid mechanics, Couette Taylor, cavitation, bubbly flow, velocity measurements, visualisation
Henda Djéridi 1 ; Céline Gabillet 1 ; Jean-Yves Billard 1
@article{CRMECA_2002__330_2_113_0, author = {Henda Dj\'eridi and C\'eline Gabillet and Jean-Yves Billard}, title = {\'Ecoulement de {Couette} {Taylor} diphasique}, journal = {Comptes Rendus. M\'ecanique}, pages = {113--119}, publisher = {Elsevier}, volume = {330}, number = {2}, year = {2002}, doi = {10.1016/S1631-0721(02)01436-5}, language = {fr}, }
Henda Djéridi; Céline Gabillet; Jean-Yves Billard. Écoulement de Couette Taylor diphasique. Comptes Rendus. Mécanique, Volume 330 (2002) no. 2, pp. 113-119. doi : 10.1016/S1631-0721(02)01436-5. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/S1631-0721(02)01436-5/
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