A Numerical Study of Low Reynolds Number Incompressible Flow at Entrance and Disturbed Regions Of Concentric Circular Pipes

The developing laminar flow in the entrance and disturbed regions of concentric circular pipes has been studied numerically. Both main pipe and disturbed pipe are concentric and stationary. Uniform developing flow occurs in entrance region of main pipe and inside disturbed pipe at disturbed regio...

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Main Author: Ahmed Ali Shaker
Format: Article
Language:Arabic
Published: Mustansiriyah University/College of Engineering 2012-06-01
Series:Journal of Engineering and Sustainable Development
Subjects:
Online Access:https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1194
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author Ahmed Ali Shaker
author_facet Ahmed Ali Shaker
author_sort Ahmed Ali Shaker
collection DOAJ
description The developing laminar flow in the entrance and disturbed regions of concentric circular pipes has been studied numerically. Both main pipe and disturbed pipe are concentric and stationary. Uniform developing flow occurs in entrance region of main pipe and inside disturbed pipe at disturbed region. while non-uniform developing flow occurs in annular concentric disturbed pipe at disturbed region. For the two-dimensional problem, numerical solutions are obtained for a wide range of Reynolds number from 25 to 375. A computer program and AutoFEA software were used to calculate the velocity and pressure drop within the entire channel. The maximum velocity at the centerline of the pipe, hydrodynamic boundary layer developed faster for the lower Reynolds number. However, the flow field is similar for all studied cases. All the present work data are in good agreement with AutoFEA software.  
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spelling doaj.art-57af3a6f5e3d45218e80ae3f3f6eade42022-12-22T02:28:08ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252012-06-01162A Numerical Study of Low Reynolds Number Incompressible Flow at Entrance and Disturbed Regions Of Concentric Circular PipesAhmed Ali Shaker0College of Engineering Al-Qadissiya University Mechanical Engineering Department The developing laminar flow in the entrance and disturbed regions of concentric circular pipes has been studied numerically. Both main pipe and disturbed pipe are concentric and stationary. Uniform developing flow occurs in entrance region of main pipe and inside disturbed pipe at disturbed region. while non-uniform developing flow occurs in annular concentric disturbed pipe at disturbed region. For the two-dimensional problem, numerical solutions are obtained for a wide range of Reynolds number from 25 to 375. A computer program and AutoFEA software were used to calculate the velocity and pressure drop within the entire channel. The maximum velocity at the centerline of the pipe, hydrodynamic boundary layer developed faster for the lower Reynolds number. However, the flow field is similar for all studied cases. All the present work data are in good agreement with AutoFEA software.  https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1194entrance regiondisturbed flowincompressiblecircular pipe
spellingShingle Ahmed Ali Shaker
A Numerical Study of Low Reynolds Number Incompressible Flow at Entrance and Disturbed Regions Of Concentric Circular Pipes
Journal of Engineering and Sustainable Development
entrance region
disturbed flow
incompressible
circular pipe
title A Numerical Study of Low Reynolds Number Incompressible Flow at Entrance and Disturbed Regions Of Concentric Circular Pipes
title_full A Numerical Study of Low Reynolds Number Incompressible Flow at Entrance and Disturbed Regions Of Concentric Circular Pipes
title_fullStr A Numerical Study of Low Reynolds Number Incompressible Flow at Entrance and Disturbed Regions Of Concentric Circular Pipes
title_full_unstemmed A Numerical Study of Low Reynolds Number Incompressible Flow at Entrance and Disturbed Regions Of Concentric Circular Pipes
title_short A Numerical Study of Low Reynolds Number Incompressible Flow at Entrance and Disturbed Regions Of Concentric Circular Pipes
title_sort numerical study of low reynolds number incompressible flow at entrance and disturbed regions of concentric circular pipes
topic entrance region
disturbed flow
incompressible
circular pipe
url https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1194
work_keys_str_mv AT ahmedalishaker anumericalstudyoflowreynoldsnumberincompressibleflowatentranceanddisturbedregionsofconcentriccircularpipes
AT ahmedalishaker numericalstudyoflowreynoldsnumberincompressibleflowatentranceanddisturbedregionsofconcentriccircularpipes