p. 253 - 256 VARIATION DU NIVEAU DU LIQUIDE DANS LES ENCEINTES OUVERTES QUI COULENT A FOND D. Dinu Institut de la Marine Marchande Constanta Abstract In order to design pressure compensating automatic systems in underwater field it is very often necessary to know how liquid level varies in immersing open cases. The paper establishes level variation and liquid speed in the lower pipe of some cases which immerse at a constant speed.