Design and Analysis of A 3-D Conical Diffuser

Analysis of flow through the conical diffuser of an annular combustion systemis presented. The flow is assumed to be unsteady, quasi three dimensional,compressible and turbulent. A k-ε model was used to simulate turbulence.Several area ratios and divergence angles were tested until circulation tookp...

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Main Author: Arkan Husain Al Taie
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2007-03-01
Series:Engineering and Technology Journal
Subjects:
Online Access:https://etj.uotechnology.edu.iq/article_181372_ed475995c62ec062be9e408cbb9c01d4.pdf
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author Arkan Husain Al Taie
author_facet Arkan Husain Al Taie
author_sort Arkan Husain Al Taie
collection DOAJ
description Analysis of flow through the conical diffuser of an annular combustion systemis presented. The flow is assumed to be unsteady, quasi three dimensional,compressible and turbulent. A k-ε model was used to simulate turbulence.Several area ratios and divergence angles were tested until circulation tookplace. At this angle a snout was introduced to correct the flow. A control volumemethod was used to solve the differential equations of the flow to obtain velocityand pressure coefficient distributions. The numerical results show that the axialvelocity decreases with diffuser length for a certain divergence angle. But itincreases with angle of divergence for the same area ratio, while the radialcomponent of velocity was found to increase with both. It was proved that thesnout can correct the flow whenever circulation takes place.
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spelling doaj.art-1b170a9329c345ed9b3024781ad7034c2024-02-04T17:55:04ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582007-03-0125344345310.30684/etj.25.3.16181372Design and Analysis of A 3-D Conical DiffuserArkan Husain Al TaieAnalysis of flow through the conical diffuser of an annular combustion systemis presented. The flow is assumed to be unsteady, quasi three dimensional,compressible and turbulent. A k-ε model was used to simulate turbulence.Several area ratios and divergence angles were tested until circulation tookplace. At this angle a snout was introduced to correct the flow. A control volumemethod was used to solve the differential equations of the flow to obtain velocityand pressure coefficient distributions. The numerical results show that the axialvelocity decreases with diffuser length for a certain divergence angle. But itincreases with angle of divergence for the same area ratio, while the radialcomponent of velocity was found to increase with both. It was proved that thesnout can correct the flow whenever circulation takes place.https://etj.uotechnology.edu.iq/article_181372_ed475995c62ec062be9e408cbb9c01d4.pdfcombustorsdiffuserssnout
spellingShingle Arkan Husain Al Taie
Design and Analysis of A 3-D Conical Diffuser
Engineering and Technology Journal
combustors
diffusers
snout
title Design and Analysis of A 3-D Conical Diffuser
title_full Design and Analysis of A 3-D Conical Diffuser
title_fullStr Design and Analysis of A 3-D Conical Diffuser
title_full_unstemmed Design and Analysis of A 3-D Conical Diffuser
title_short Design and Analysis of A 3-D Conical Diffuser
title_sort design and analysis of a 3 d conical diffuser
topic combustors
diffusers
snout
url https://etj.uotechnology.edu.iq/article_181372_ed475995c62ec062be9e408cbb9c01d4.pdf
work_keys_str_mv AT arkanhusainaltaie designandanalysisofa3dconicaldiffuser