Detection of Cavitation through Acoustic Generation in Centrifugal Pump Impeller

The most common device which transport fluid in industries, agriculture as well as domestic water supply is the centrifugal pump. Based on fluid transfer conditions, several let-downs are occur in the centrifugal pump, cavitation is one among them. The flow pattern at the eye of impeller deviates fr...

Full description

Bibliographic Details
Main Authors: A. K. Jaiswal, A. U. Rehman, A. R. Paul, A. Jain
Format: Article
Language:English
Published: Isfahan University of Technology 2019-01-01
Series:Journal of Applied Fluid Mechanics
Subjects:
Online Access:http://jafmonline.net/JournalArchive/download?file_ID=49240&issue_ID=1001
_version_ 1818789341280862208
author A. K. Jaiswal
A. U. Rehman
A. R. Paul
A. Jain
author_facet A. K. Jaiswal
A. U. Rehman
A. R. Paul
A. Jain
author_sort A. K. Jaiswal
collection DOAJ
description The most common device which transport fluid in industries, agriculture as well as domestic water supply is the centrifugal pump. Based on fluid transfer conditions, several let-downs are occur in the centrifugal pump, cavitation is one among them. The flow pattern at the eye of impeller deviates from the ideal case with the occurrence of cavitation. Due to cavitation, vibration occurs on blades that generates noise in pump. In this study, the acoustics generated in centrifugal pump impeller due to cavitation is detected with the sound pressure by using 3-Dimensional, steady and unsteady state computational fluid dynamics (CFD) analysis of an industrial centrifugal pump impeller. Harmonic force analysis with blade row model helps in finding the sound pressure. The acoustics generated with unsteady-state is compared with cavitation at steady-state CFD analysis. The Reynolds averaged Navier-Stokes equations model as well as Shear Stress Transport (SST) turbulence model are used for the CFD simulation. The results show that the sound pressure calculated increases with the increase in cavitation (i.e. formation of vapour bubbles and sudden drop in head) which shows that high noises are generated by centrifugal pump impeller at lower net positive suction head (NPSH) at a particular discharge.
first_indexed 2024-12-18T14:38:01Z
format Article
id doaj.art-45b10170715d4dc3a981796e2059648a
institution Directory Open Access Journal
issn 1735-3572
language English
last_indexed 2024-12-18T14:38:01Z
publishDate 2019-01-01
publisher Isfahan University of Technology
record_format Article
series Journal of Applied Fluid Mechanics
spelling doaj.art-45b10170715d4dc3a981796e2059648a2022-12-21T21:04:28ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35722019-01-0112411031113.Detection of Cavitation through Acoustic Generation in Centrifugal Pump ImpellerA. K. Jaiswal0A. U. Rehman1A. R. Paul2A. Jain3Department of Applied Mechanic, Motilal Nehru National Institute of Technology Allahabad, Prayagraj-211004, IndiaDepartment of Applied Mechanic, Motilal Nehru National Institute of Technology Allahabad, Prayagraj-211004, IndiaDepartment of Applied Mechanic, Motilal Nehru National Institute of Technology Allahabad, Prayagraj-211004, IndiaDepartment of Applied Mechanic, Motilal Nehru National Institute of Technology Allahabad, Prayagraj-211004, IndiaThe most common device which transport fluid in industries, agriculture as well as domestic water supply is the centrifugal pump. Based on fluid transfer conditions, several let-downs are occur in the centrifugal pump, cavitation is one among them. The flow pattern at the eye of impeller deviates from the ideal case with the occurrence of cavitation. Due to cavitation, vibration occurs on blades that generates noise in pump. In this study, the acoustics generated in centrifugal pump impeller due to cavitation is detected with the sound pressure by using 3-Dimensional, steady and unsteady state computational fluid dynamics (CFD) analysis of an industrial centrifugal pump impeller. Harmonic force analysis with blade row model helps in finding the sound pressure. The acoustics generated with unsteady-state is compared with cavitation at steady-state CFD analysis. The Reynolds averaged Navier-Stokes equations model as well as Shear Stress Transport (SST) turbulence model are used for the CFD simulation. The results show that the sound pressure calculated increases with the increase in cavitation (i.e. formation of vapour bubbles and sudden drop in head) which shows that high noises are generated by centrifugal pump impeller at lower net positive suction head (NPSH) at a particular discharge.http://jafmonline.net/JournalArchive/download?file_ID=49240&issue_ID=1001Centrifugal pump impeller; Cavitation; Net positive suction head (NPSH); Acoustics; Sound pressure; Vapour volume fraction.
spellingShingle A. K. Jaiswal
A. U. Rehman
A. R. Paul
A. Jain
Detection of Cavitation through Acoustic Generation in Centrifugal Pump Impeller
Journal of Applied Fluid Mechanics
Centrifugal pump impeller; Cavitation; Net positive suction head (NPSH); Acoustics; Sound pressure; Vapour volume fraction.
title Detection of Cavitation through Acoustic Generation in Centrifugal Pump Impeller
title_full Detection of Cavitation through Acoustic Generation in Centrifugal Pump Impeller
title_fullStr Detection of Cavitation through Acoustic Generation in Centrifugal Pump Impeller
title_full_unstemmed Detection of Cavitation through Acoustic Generation in Centrifugal Pump Impeller
title_short Detection of Cavitation through Acoustic Generation in Centrifugal Pump Impeller
title_sort detection of cavitation through acoustic generation in centrifugal pump impeller
topic Centrifugal pump impeller; Cavitation; Net positive suction head (NPSH); Acoustics; Sound pressure; Vapour volume fraction.
url http://jafmonline.net/JournalArchive/download?file_ID=49240&issue_ID=1001
work_keys_str_mv AT akjaiswal detectionofcavitationthroughacousticgenerationincentrifugalpumpimpeller
AT aurehman detectionofcavitationthroughacousticgenerationincentrifugalpumpimpeller
AT arpaul detectionofcavitationthroughacousticgenerationincentrifugalpumpimpeller
AT ajain detectionofcavitationthroughacousticgenerationincentrifugalpumpimpeller