Journal ArticleDOI
Numerical study of air-core vortex dynamics during liquid draining from cylindrical tanks
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TLDR
In this paper, a qualitative and quantitative comparison of the temporal variation of critical height against available experiments is reported, and it was found that drain port shape, size, pressurization, initial rotation, etc, play a vital role in the formation of an air core vortex and its growth.About:
This article is published in Fluid Dynamics Research.The article was published on 2014-04-01. It has received 9 citations till now. The article focuses on the topics: Vortex & Bell mouth.read more
Citations
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Journal ArticleDOI
Numerical study of 3-D air core phenomenon during liquid draining
TL;DR: In this article, a 3D numerical simulation of the liquid draining from a cylindrical tank was conducted and the interaction between axially and circumferentially rotating vortex structures was suggested.
Journal ArticleDOI
Effect of water temperature on air-core generation and disappearance during draining
Kamran Nazir,Chang Hyun Sohn +1 more
TL;DR: In this article, experiments are performed for draining water of different temperatures from a cylindrical tank, and it is shown that the air core generation and disappearance during draining depend on the temperature of the water in the tank, in which the total draining time increases with the water temperature.
Journal ArticleDOI
Study of aircore phenomenon and influence of water height during liquid draining
Kamran Nazir,Chang Hyun Sohn +1 more
TL;DR: In this paper, the authors studied water draining through cylindrical tanks using experimental and numerical techniques and proposed the mechanism of generation and disappearance of aircore with the help of numerical results.
Journal ArticleDOI
Prevention of air entrainment during liquid draining using disc-type vortex suppressor
Jong Hyeon Son,Il Seouk Park +1 more
TL;DR: In this article, a simple and very effective vortex-suppression device through physically analyzing the causes of the air-core phenomenon was suggested, and liquid drainage processes with and without the suggested disc-type vortex suppressor were investigated numerically and experimentally.
Journal ArticleDOI
Electromagnetic vortex suppression to prevent air core phenomenon for draining of electrically conducting liquids
TL;DR: In this paper, a magnetic field is applied to the container to suppress the air core phenomenon during liquid suction or drainage through a narrow drain port, and a volume-of-fluid (VOF) free surface capturing method is used to track the free surface evolution.
References
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Journal ArticleDOI
Volume of fluid (VOF) method for the dynamics of free boundaries
C.W Hirt,B. D. Nichols +1 more
TL;DR: In this paper, the concept of a fractional volume of fluid (VOF) has been used to approximate free boundaries in finite-difference numerical simulations, which is shown to be more flexible and efficient than other methods for treating complicated free boundary configurations.
Journal ArticleDOI
A continuum method for modeling surface tension
TL;DR: In this paper, a force density proportional to the surface curvature of constant color is defined at each point in the transition region; this force-density is normalized in such a way that the conventional description of surface tension on an interface is recovered when the ratio of local transition-reion thickness to local curvature radius approaches zero.
Journal ArticleDOI
A calculation procedure for heat, mass and momentum transfer in three-dimensional parabolic flows
S.V. Patankar,D. B. Spalding +1 more
TL;DR: In this article, a general, numerical, marching procedure is presented for the calculation of the transport processes in three-dimensional flows characterised by the presence of one coordinate in which physical influences are exerted in only one direction.
Book
Fox and McDonald's Introduction to Fluid Mechanics
TL;DR: In this article, the authors present a detailed analysis of flow properties in a pipe with respect to the Euler's Equation and the Bernoulli Equation along a streamline.
Journal ArticleDOI
Free‐Surface Air Core Vortex
TL;DR: In this article, a Rankine vortex model is used as the basis for an equation for critical submergence of intakes, which accounts for the effect of eddy viscosity on vortex-core characteristics.
Related Papers (5)
Experimental and numerical study on air cores for cylindrical tank draining
Il Seouk Park,Chang Hyun Sohn +1 more