Numerical investigation of flow features for two horizontal rectangular polygons

Studying fluid dynamics is crucial to advancing scientific knowledge and technological advancements worldwide. This study examines the behavior of a viscous fluid when it interacts with two horizontally positioned rectangular polygons arranged in a staggered arrangement. The lattice Boltzmann method...

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Main Authors: Farheen Gul, Ghazala Nazeer, Madiha Sana, Sehrish Hassan Shigri, Shams Ul Islam
Format: Article
Language:English
Published: AIP Publishing LLC 2024-01-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0186721
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author Farheen Gul
Ghazala Nazeer
Madiha Sana
Sehrish Hassan Shigri
Shams Ul Islam
author_facet Farheen Gul
Ghazala Nazeer
Madiha Sana
Sehrish Hassan Shigri
Shams Ul Islam
author_sort Farheen Gul
collection DOAJ
description Studying fluid dynamics is crucial to advancing scientific knowledge and technological advancements worldwide. This study examines the behavior of a viscous fluid when it interacts with two horizontally positioned rectangular polygons arranged in a staggered arrangement. The lattice Boltzmann method is employed to analyze two-dimensional flow, specifically focusing on two physical parameters: Reynolds number, which is fixed at 150, and gap spacings, which vary simultaneously in X and Y directions. The results are analyzed by examining vortex snapshots, time trace histories of drag and lift coefficients, and power spectra analysis of lift coefficients. The progressive increase in the gap distances between the two horizontal rectangular polygons distinguishes seven separate flow vortex streets. The vortex shedding mechanism is disrupted at narrow gap spacings and reaches its ideal state at large gap spacings. There is the potential for the flow regime to be altered by the staggered alignment of rectangular polygons. Increasing the space between the polygons has a considerable impact on the flow characteristics brought about.
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spelling doaj.art-924134a40f914604b8b22c330a672fef2024-02-02T16:46:07ZengAIP Publishing LLCAIP Advances2158-32262024-01-01141015347015347-1610.1063/5.0186721Numerical investigation of flow features for two horizontal rectangular polygonsFarheen Gul0Ghazala Nazeer1Madiha Sana2Sehrish Hassan Shigri3Shams Ul Islam4The Government Sadiq College Women University, Bahawalpur 63100, PakistanThe Government Sadiq College Women University, Bahawalpur 63100, PakistanThe Islamia University, Bahawalpur 63100, PakistanFAST NUCES, Islamabad 44100, PakistanComsats University, Islamabad 44100, PakistanStudying fluid dynamics is crucial to advancing scientific knowledge and technological advancements worldwide. This study examines the behavior of a viscous fluid when it interacts with two horizontally positioned rectangular polygons arranged in a staggered arrangement. The lattice Boltzmann method is employed to analyze two-dimensional flow, specifically focusing on two physical parameters: Reynolds number, which is fixed at 150, and gap spacings, which vary simultaneously in X and Y directions. The results are analyzed by examining vortex snapshots, time trace histories of drag and lift coefficients, and power spectra analysis of lift coefficients. The progressive increase in the gap distances between the two horizontal rectangular polygons distinguishes seven separate flow vortex streets. The vortex shedding mechanism is disrupted at narrow gap spacings and reaches its ideal state at large gap spacings. There is the potential for the flow regime to be altered by the staggered alignment of rectangular polygons. Increasing the space between the polygons has a considerable impact on the flow characteristics brought about.http://dx.doi.org/10.1063/5.0186721
spellingShingle Farheen Gul
Ghazala Nazeer
Madiha Sana
Sehrish Hassan Shigri
Shams Ul Islam
Numerical investigation of flow features for two horizontal rectangular polygons
AIP Advances
title Numerical investigation of flow features for two horizontal rectangular polygons
title_full Numerical investigation of flow features for two horizontal rectangular polygons
title_fullStr Numerical investigation of flow features for two horizontal rectangular polygons
title_full_unstemmed Numerical investigation of flow features for two horizontal rectangular polygons
title_short Numerical investigation of flow features for two horizontal rectangular polygons
title_sort numerical investigation of flow features for two horizontal rectangular polygons
url http://dx.doi.org/10.1063/5.0186721
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AT sehrishhassanshigri numericalinvestigationofflowfeaturesfortwohorizontalrectangularpolygons
AT shamsulislam numericalinvestigationofflowfeaturesfortwohorizontalrectangularpolygons