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. La-bulle-prend-la-forme-d-'une-calotte-sphérique, Cette forme est caractéristique des bulles de grande taille (Eo > 40) pour des nombres de Reynolds supérieurssupérieurs`supérieursà 1. Pour des faibles nombres de Reynolds (Re < 10) la bulle prend une forme de calotte sphérique creusée dans sa partie inférieure, notée " Dimpled " . Pour des grandes valeurs du nombre d'Eötvös (Eo > 600) et des nombres de Reynolds inférieursinférieurs`inférieursà 100, des trainées tout autour de la calotte sont observées comme si celle-ci avait une " jupe

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