caa a22 4500 477093914 CHVBK 20180405111522.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF00193917 doi (NATIONALLICENCE)springer-10.1007/BF00193917 Flow visualisation experiments on free draining of a rotating column of liquid using nets and tufts [Elektronische Daten] [K. Ramamurthi, T. Tharakan] The characteristics of the air-core vortex formed during free draining of liquids from tanks strongly depend on the size and shape of the drain ports used. In order to understand the role of the drain-port in influencing the air-core vortex, the flow currents induced while draining a rotating column of liquid with different drain-port diameters is assessed. The flow currents are monitored using nets and tufts. It is shown that for small drain ports, for which an air-core vortex is spontaneously formed, the rotational flow currents are concentrated along the central core. With larger drain ports, the rotational flow currents are smaller and are diffused over larger radii leading to weak air-core vortex. Springer-Verlag, 1996 Ramamurthi K. Propulsion Research and Studies Group Liquid Propulsion Systems Centre, 695 547, Trivandrum, India aut Tharakan T. Propulsion Research and Studies Group Liquid Propulsion Systems Centre, 695 547, Trivandrum, India aut Experiments in Fluids Springer-Verlag 21/2(1996-06-01), 139-142 0723-4864 21:2<139 1996 21 348 https://doi.org/10.1007/BF00193917 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00193917 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ramamurthi K. Propulsion Research and Studies Group Liquid Propulsion Systems Centre, 695 547, Trivandrum, India aut NATIONALLICENCE 700 1- Tharakan T. Propulsion Research and Studies Group Liquid Propulsion Systems Centre, 695 547, Trivandrum, India aut NATIONALLICENCE 773 0- Experiments in Fluids Springer-Verlag 21/2(1996-06-01), 139-142 0723-4864 21:2<139 1996 21 348 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer