Experimental and analytical studies of different methods for producing stratified flows

Ghajar, Afshin J.; Bang, Ki-Young

doi:10.1016/0360-5442(93)90067-n

Cited by 11 publications

(4 citation statements)

References 8 publications

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“…In the beginning of each experimental run, the tank was gradually filled to a depth of 47 cm with artificial seawater by using the two-tank method to form a linearly stratified saltwater column (Fortuin, 1960;Ghajar and Bang, 1993;Economidou and Hunt, 2009). A nozzle of 5 or 7 mm inner diameter was mounted at the center of a supporting rail that was fixed on the top of the tank.…”

Section: Experimental Setup and General Data Analysis Proceduresmentioning

confidence: 99%

Scaling for turbulent viscosity of buoyant plumes in stratified fluids: PIV measurement with implications for submarine hydrothermal plume turbulence

Zhang

Jiang

2017

Deep Sea Research Part I: Oceanographic Research Papers

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Section: Experimental Setup and General Data Analysis Proceduresmentioning

confidence: 99%

Scaling for turbulent viscosity of buoyant plumes in stratified fluids: PIV measurement with implications for submarine hydrothermal plume turbulence

Zhang

Jiang

2017

Deep Sea Research Part I: Oceanographic Research Papers

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“…A locked head tank used to store dense salt water was placed at one side of the flume, connected by inclined perspex boards of different lengths to create different slopes. Before each experiment, linearly stratified water was gradually filled in the flume to a water depth of 34 cm using a two-tank system (Ghajar and Bang 1993). During this process, the opening height of lock 1 was kept as 4 cm and lock 2 was closed.…”

Section: Experiments and Parametersmentioning

confidence: 99%

“…Finally, some discussions and conclusions are presented. water was gradually filled in the flume to a water depth of 34 cm using a two-tank system (Ghajar and Bang 1993). During this process, the opening height of lock 1 was kept as 4 cm and lock 2 was closed.…”

Section: Introductionmentioning

confidence: 99%

Front Velocity and Front Location of Lock-Exchange Gravity Currents Descending a Slope in a Linearly Stratified Environment

Zhao

et al. 2018

J. Hydraul. Eng.

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Gravity currents descending a slope in a linearly stratified environment can be frequently encountered in nature. However, few studies have quantitatively investigated the evolution process of lock-exchange gravity currents in such environments. A new set of analytical formulae is proposed by integrating both mass conservation and linear momentum equations to determine the front velocity and the front location of a downslope current. Based on the thermal theory, the formula considers the influence of ambient stratification by introducing a newly defined stratification coefficient in the acceleration stage. As for the deceleration stage, the formula is derived by adding a parameter that takes into account the density distribution of the ambient water. The transition point between the acceleration and deceleration stages and the maximum front velocity are also determined by the proposed formulae. Lock-exchange gravity current experiments are conducted in the flume with linear stratifications to provide data for the validation of the formulae. The comparisons between the calculated and measured data in terms of front location and front velocity show satisfactory agreements, which reveal that front velocity presents a rapid acceleration stage and then a deceleration stage in a linearly stratified ambient.

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“…Ein ähnlicher Versuchsaufbau wie von [Krishnamurti, 2003], nur für Wärme und Kupferionen, wurde für die zweite Messreihe dieser Arbeit benutzt. [Zurigat et al, 1990] und [Ghajar and Bang, 1993]). Mit diesen Annahmen wurden die Rayleighzahlen für die Finger abgeschätzt und die Gültigkeit der Gleichungen 3.4, 3.5 und 3.6 überprüft.…”

Section: • Sonstigeunclassified

Experimentelle Untersuchungen von Fingerströmung und thermohalinen Treppen für instabile Auftriebsverhältnisse

Kellner¹

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Experimental and analytical studies of different methods for producing stratified flows

Cited by 11 publications

References 8 publications

Scaling for turbulent viscosity of buoyant plumes in stratified fluids: PIV measurement with implications for submarine hydrothermal plume turbulence

Scaling for turbulent viscosity of buoyant plumes in stratified fluids: PIV measurement with implications for submarine hydrothermal plume turbulence

Front Velocity and Front Location of Lock-Exchange Gravity Currents Descending a Slope in a Linearly Stratified Environment

Experimentelle Untersuchungen von Fingerströmung und thermohalinen Treppen für instabile Auftriebsverhältnisse

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