IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
Log On
About IAHRDirectoryCommitteesMy IAHRNews & JournalseLibraryeShopEventsJoin IAHRWorld CongressDonate
spacer.gif
spacer.gif eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) FULL PAPERS : THEME 8- SPECIAL SESSIONS : EXPERIMENTS ON PLANE NEGATIVELY BUOYANT JETS
EXPERIMENTS ON PLANE NEGATIVELY BUOYANT JETS
Author : M. K. VOUSTROU , P. C. YANNOPOULOS & G. C. CHRISTODOULOU
Dense effluents, such as desalination brines, are commonly discharged inclined upwards and form negatively buoyant jets (NBJ). In this paper, we report experiments on plane NBJ performed in a laboratory tank. The jets were discharged o o from a slot 20 cm long and 2 mm wide, placed at angles to the horizontal ? = 0 and 45 . The densimetric Froude 0 number was in the range F = 15 ~ 38 and the Reynolds Re = 1200 ~ 3200. The trajectory was measured by analysis of 0 0 video recordings, whereas axial concentrations were determined by extracting small volumes of liquid, using a thin needle adapted on a flexible pipe of small diameter. The results are presented in dimensionless form and compared with existing data in the literature for ? = 0?, whereas for ? = 45? useful observations are made for the normalized terminal 0 0 height of rise and the normalized distance to the return point compared to round NBJ. For both discharge angles, the results are found to agree reasonably well with model predictions.
File Size : 1,296,730 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) FULL PAPERS
Article : THEME 8- SPECIAL SESSIONS
Date Published : 20/04/2016
Download Now