Modelling and Optimization of Fluid Frictional Torque in a Single Stage Centrifugal Pump with a Vaned Diffuser Based on RSM, ANN and Desirability Function

In a centrifugal pump, the clearance flow is quite common due to the existence of clearance between the casing and impeller. Apart from the clearance, the impeller speed and flow rate have a significant impact on fluid frictional torque. This study uses experimental and numerical methods to investig...

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Main Authors: K. Singh, A. Singh, D. K. Singh
Format: Article
Language:English
Published: Isfahan University of Technology 2025-01-01
Series:Journal of Applied Fluid Mechanics
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Online Access:https://www.jafmonline.net/article_2586_3d5a257063ef62a7d5075fb59f9aff87.pdf
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author K. Singh
A. Singh
D. K. Singh
author_facet K. Singh
A. Singh
D. K. Singh
author_sort K. Singh
collection DOAJ
description In a centrifugal pump, the clearance flow is quite common due to the existence of clearance between the casing and impeller. Apart from the clearance, the impeller speed and flow rate have a significant impact on fluid frictional torque. This study uses experimental and numerical methods to investigate these dynamics. The experimental setup includes measurements of fluid frictional torque at various levels of axial clearance (0.6 mm, 1.2 mm, and 1.8 mm), flow rates (8 L/min, 10 L/min, and 12 L/min), and impeller speeds (800 rpm, 1000 rpm, and 1200 rpm). A 3-level, 3-factor factorial design (L27) is employed to systematically examine the impact of these factors on fluid frictional torque. Response Surface Methodology (RSM) and Artificial Neural Networks (ANNs) are utilized to capture complex parameter interactions, with optimization performed using a Desirability Function (DF). The analysis reveals a significant increase in fluid frictional torque with increasing axial clearance, impeller speed, and flow rate. The optimal operational parameters for minimizing fluid frictional torque in the centrifugal pump are identified as    and mm, achieving a minimum fluid frictional torque of 0.499 Nm
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spelling doaj-art-3ec20ab7a6a4424d8fc28feb9e3d17502025-01-05T06:26:53ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35721735-36452025-01-0118372874110.47176/jafm.18.3.29062586Modelling and Optimization of Fluid Frictional Torque in a Single Stage Centrifugal Pump with a Vaned Diffuser Based on RSM, ANN and Desirability FunctionK. Singh0A. Singh1D. K. Singh2Department of Mechanical Engineering, NSUT, New Delhi 100078, IndiaDepartment of Mechanical Engineering, NSUT, New Delhi 100078, IndiaDepartment of Mechanical Engineering, NSUT, New Delhi 100078, IndiaIn a centrifugal pump, the clearance flow is quite common due to the existence of clearance between the casing and impeller. Apart from the clearance, the impeller speed and flow rate have a significant impact on fluid frictional torque. This study uses experimental and numerical methods to investigate these dynamics. The experimental setup includes measurements of fluid frictional torque at various levels of axial clearance (0.6 mm, 1.2 mm, and 1.8 mm), flow rates (8 L/min, 10 L/min, and 12 L/min), and impeller speeds (800 rpm, 1000 rpm, and 1200 rpm). A 3-level, 3-factor factorial design (L27) is employed to systematically examine the impact of these factors on fluid frictional torque. Response Surface Methodology (RSM) and Artificial Neural Networks (ANNs) are utilized to capture complex parameter interactions, with optimization performed using a Desirability Function (DF). The analysis reveals a significant increase in fluid frictional torque with increasing axial clearance, impeller speed, and flow rate. The optimal operational parameters for minimizing fluid frictional torque in the centrifugal pump are identified as    and mm, achieving a minimum fluid frictional torque of 0.499 Nmhttps://www.jafmonline.net/article_2586_3d5a257063ef62a7d5075fb59f9aff87.pdffluid frictional torqueanovarsmannoptimization
spellingShingle K. Singh
A. Singh
D. K. Singh
Modelling and Optimization of Fluid Frictional Torque in a Single Stage Centrifugal Pump with a Vaned Diffuser Based on RSM, ANN and Desirability Function
Journal of Applied Fluid Mechanics
fluid frictional torque
anova
rsm
ann
optimization
title Modelling and Optimization of Fluid Frictional Torque in a Single Stage Centrifugal Pump with a Vaned Diffuser Based on RSM, ANN and Desirability Function
title_full Modelling and Optimization of Fluid Frictional Torque in a Single Stage Centrifugal Pump with a Vaned Diffuser Based on RSM, ANN and Desirability Function
title_fullStr Modelling and Optimization of Fluid Frictional Torque in a Single Stage Centrifugal Pump with a Vaned Diffuser Based on RSM, ANN and Desirability Function
title_full_unstemmed Modelling and Optimization of Fluid Frictional Torque in a Single Stage Centrifugal Pump with a Vaned Diffuser Based on RSM, ANN and Desirability Function
title_short Modelling and Optimization of Fluid Frictional Torque in a Single Stage Centrifugal Pump with a Vaned Diffuser Based on RSM, ANN and Desirability Function
title_sort modelling and optimization of fluid frictional torque in a single stage centrifugal pump with a vaned diffuser based on rsm ann and desirability function
topic fluid frictional torque
anova
rsm
ann
optimization
url https://www.jafmonline.net/article_2586_3d5a257063ef62a7d5075fb59f9aff87.pdf
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