A Numerical Study on Flow Characteristics of 2D Vertical Liquid Jet Striking a Horizontal Surface
سال
: 2010
چکیده: We studied numerically impingement of vertical liquid jets of moderate Reynolds number for both Newtonian and non-Newtonian liquids to clarify the structure formation of circular hydraulic jump and the phenomenon of jet buckling. First, we have studied the hydraulic jump characteristics and governing parameters for a laminar water jet. Moreover, different types of hydraulic jump have been investigated by varying the height of a circular wall around the bed in flow downstream. The results show that a circular hydraulic jump has two kinds of steady states which can be reached by changing wall height. Next, we studied the impingement of a non-Newtonian liquid jet on a solid surface. In this case, we observe that instead of having a significant hydraulic jump, jet buckling phenomenon happens. The results were used in order to achieve a better understanding of the jet buckling phenomenon and the conditions in which this phenomenon happens.
کلیدواژه(گان): circular hydraulic jump - jet impingement
کالکشن
:
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آمار بازدید
A Numerical Study on Flow Characteristics of 2D Vertical Liquid Jet Striking a Horizontal Surface
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contributor author | مرتضی کیمیاقلم | en |
contributor author | محمد پسندیده فرد | en |
contributor author | Morteza Kimiaghalam | fa |
contributor author | Mohammad Passandideh-Fard | fa |
date accessioned | 2020-06-06T13:59:50Z | |
date available | 2020-06-06T13:59:50Z | |
date copyright | 7/12/2010 | |
date issued | 2010 | |
identifier uri | http://libsearch.um.ac.ir:80/fum/handle/fum/3378092 | |
description abstract | We studied numerically impingement of vertical liquid jets of moderate Reynolds number for both Newtonian and non-Newtonian liquids to clarify the structure formation of circular hydraulic jump and the phenomenon of jet buckling. First, we have studied the hydraulic jump characteristics and governing parameters for a laminar water jet. Moreover, different types of hydraulic jump have been investigated by varying the height of a circular wall around the bed in flow downstream. The results show that a circular hydraulic jump has two kinds of steady states which can be reached by changing wall height. Next, we studied the impingement of a non-Newtonian liquid jet on a solid surface. In this case, we observe that instead of having a significant hydraulic jump, jet buckling phenomenon happens. The results were used in order to achieve a better understanding of the jet buckling phenomenon and the conditions in which this phenomenon happens. | en |
language | English | |
title | A Numerical Study on Flow Characteristics of 2D Vertical Liquid Jet Striking a Horizontal Surface | en |
type | Conference Paper | |
contenttype | External Fulltext | |
subject keywords | circular hydraulic jump - jet impingement | en |
identifier link | https://profdoc.um.ac.ir/paper-abstract-1018996.html | |
conference title | 10th Biennial Conference on Engineering Systems Design and Analysis ESDA2010 | en |
identifier articleid | 1018996 |