Flow Characteristic Study in a Configuration of Sudden Expansion with Central Restriction and Fence – Viewed as an Annular Flow Dump Combustor
In this paper, a numerical study on flow characteristics in configurations of sudden expansion with central restriction and fence viewed as annular flow dump combustor has been carried out for Reynolds number (Re) ranging from 50 to 200, percentage of central restriction (CR) from 10% to 40% and asp...
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Isfahan University of Technology
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doaj-2845d4b95a244b9d97dafd2d10fa42482020-11-25T00:22:24ZengIsfahan University of Technology Journal of Applied Fluid Mechanics1735-35722015-01-0184713725.Flow Characteristic Study in a Configuration of Sudden Expansion with Central Restriction and Fence – Viewed as an Annular Flow Dump CombustorTridibesh Das0S. Chakrabarti1Kalyani Government Engineering CollegeDepartment of Mechanical Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah-711103, West Bengal, IndiaIn this paper, a numerical study on flow characteristics in configurations of sudden expansion with central restriction and fence viewed as annular flow dump combustor has been carried out for Reynolds number (Re) ranging from 50 to 200, percentage of central restriction (CR) from 10% to 40% and aspect ratio (AR) from 2 to 6 with a fixed fence subtended angle (FSA) of 10 degree and with a fixed distance of fence from throat respectively. The effect of each variable on streamline contour and velocity profile has been studied in detail. Results have been compared with the configuration of sudden expansion with central restriction only. From the study it is concluded that the configuration of sudden expansion with central restriction and fence with higher flow Reynolds number, higher central restriction and higher aspect ratio offers more benefit in terms of the mixing possibility compared to the case of sudden expansion with central restriction only.http://jafmonline.net/JournalArchive/download?file_ID=37912&issue_ID=223Sudden expansion; Central restriction; Recirculating bubble; Streamline contour |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tridibesh Das S. Chakrabarti |
spellingShingle |
Tridibesh Das S. Chakrabarti Flow Characteristic Study in a Configuration of Sudden Expansion with Central Restriction and Fence – Viewed as an Annular Flow Dump Combustor Journal of Applied Fluid Mechanics Sudden expansion; Central restriction; Recirculating bubble; Streamline contour |
author_facet |
Tridibesh Das S. Chakrabarti |
author_sort |
Tridibesh Das |
title |
Flow Characteristic Study in a Configuration of Sudden Expansion with Central Restriction and Fence – Viewed as an Annular Flow Dump Combustor |
title_short |
Flow Characteristic Study in a Configuration of Sudden Expansion with Central Restriction and Fence – Viewed as an Annular Flow Dump Combustor |
title_full |
Flow Characteristic Study in a Configuration of Sudden Expansion with Central Restriction and Fence – Viewed as an Annular Flow Dump Combustor |
title_fullStr |
Flow Characteristic Study in a Configuration of Sudden Expansion with Central Restriction and Fence – Viewed as an Annular Flow Dump Combustor |
title_full_unstemmed |
Flow Characteristic Study in a Configuration of Sudden Expansion with Central Restriction and Fence – Viewed as an Annular Flow Dump Combustor |
title_sort |
flow characteristic study in a configuration of sudden expansion with central restriction and fence – viewed as an annular flow dump combustor |
publisher |
Isfahan University of Technology |
series |
Journal of Applied Fluid Mechanics |
issn |
1735-3572 |
publishDate |
2015-01-01 |
description |
In this paper, a numerical study on flow characteristics in configurations of sudden expansion with central restriction and fence viewed as annular flow dump combustor has been carried out for Reynolds number (Re) ranging from 50 to 200, percentage of central restriction (CR) from 10% to 40% and aspect ratio (AR) from 2 to 6 with a fixed fence subtended angle (FSA) of 10 degree and with a fixed distance of fence from throat respectively. The effect of each variable on streamline contour and velocity profile has been studied in detail. Results have been compared with the configuration of sudden expansion with central restriction only. From the study it is concluded that the configuration of sudden expansion with central restriction and fence with higher flow Reynolds number, higher central restriction and higher aspect ratio offers more benefit in terms of the mixing possibility compared to the case of sudden expansion with central restriction only. |
topic |
Sudden expansion; Central restriction; Recirculating bubble; Streamline contour |
url |
http://jafmonline.net/JournalArchive/download?file_ID=37912&issue_ID=223 |
work_keys_str_mv |
AT tridibeshdas flowcharacteristicstudyinaconfigurationofsuddenexpansionwithcentralrestrictionandfenceviewedasanannularflowdumpcombustor AT schakrabarti flowcharacteristicstudyinaconfigurationofsuddenexpansionwithcentralrestrictionandfenceviewedasanannularflowdumpcombustor |
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1725359982619131904 |