Reverse engineering of pump as turbine for CFD analysis

Reverse engineering (RE) using 3D scanning is already a relatively technologically simple and cost-effective method. For water turbines, this is particularly true for RE of larger machines. With microturbines, there is a lot of pressure to minimise costs, even at the cost of reduced accuracy. Using...

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Main Authors: Jiří Souček, Eva Bílková, Petr Nowak
Format: Article
Language:English
Published: CTU Central Library 2024-03-01
Series:Acta Polytechnica
Subjects:
Online Access:https://ojs.cvut.cz/ojs/index.php/ap/article/view/9188
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author Jiří Souček
Eva Bílková
Petr Nowak
author_facet Jiří Souček
Eva Bílková
Petr Nowak
author_sort Jiří Souček
collection DOAJ
description Reverse engineering (RE) using 3D scanning is already a relatively technologically simple and cost-effective method. For water turbines, this is particularly true for RE of larger machines. With microturbines, there is a lot of pressure to minimise costs, even at the cost of reduced accuracy. Using an existing micro-PAT (Pump as Turbine) as an example, we showed the approach to assessing these microturbines, starting with scanning the entire internal flow profile of the turbine, reconstructing the surface into a 3D model, and numerically assessing it using CFD (Computational Fluid Dynamics). A different approach is necessary compared to standard large machines, whose dimensions allow troublefree scanning of the flow parts of the turbine. Using CFD, we assessed the reconstructed geometry of the PAT. Two significant findings were made: the importance of high-quality 3D scanning by combining several cheaper 3D scanners and the necessity for reliable in-situ measurements for a successful CFD validation. Our future focus involves optimising PAT runner geometry in turbine mode to enhance energy production at the site and, at the same time, eliminating existing cavitation.
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spelling doaj.art-7b17a54407fc49f2982f212a794aed412024-03-14T11:26:13ZengCTU Central LibraryActa Polytechnica1805-23632024-03-0164110.14311/AP.2024.64.0052Reverse engineering of pump as turbine for CFD analysisJiří Souček0Eva Bílková1Petr Nowak2Czech Technical University in Prague, Faculty of Civil Engineering, Department of Hydraulic Structures, Thákurova 2077/7, 166 29 Praha 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Hydraulic Structures, Thákurova 2077/7, 166 29 Praha 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Hydraulic Structures, Thákurova 2077/7, 166 29 Praha 6, Czech Republic Reverse engineering (RE) using 3D scanning is already a relatively technologically simple and cost-effective method. For water turbines, this is particularly true for RE of larger machines. With microturbines, there is a lot of pressure to minimise costs, even at the cost of reduced accuracy. Using an existing micro-PAT (Pump as Turbine) as an example, we showed the approach to assessing these microturbines, starting with scanning the entire internal flow profile of the turbine, reconstructing the surface into a 3D model, and numerically assessing it using CFD (Computational Fluid Dynamics). A different approach is necessary compared to standard large machines, whose dimensions allow troublefree scanning of the flow parts of the turbine. Using CFD, we assessed the reconstructed geometry of the PAT. Two significant findings were made: the importance of high-quality 3D scanning by combining several cheaper 3D scanners and the necessity for reliable in-situ measurements for a successful CFD validation. Our future focus involves optimising PAT runner geometry in turbine mode to enhance energy production at the site and, at the same time, eliminating existing cavitation. https://ojs.cvut.cz/ojs/index.php/ap/article/view/9188reverse engineering3D scanningpump as turbine (PAT)CFD modelling
spellingShingle Jiří Souček
Eva Bílková
Petr Nowak
Reverse engineering of pump as turbine for CFD analysis
Acta Polytechnica
reverse engineering
3D scanning
pump as turbine (PAT)
CFD modelling
title Reverse engineering of pump as turbine for CFD analysis
title_full Reverse engineering of pump as turbine for CFD analysis
title_fullStr Reverse engineering of pump as turbine for CFD analysis
title_full_unstemmed Reverse engineering of pump as turbine for CFD analysis
title_short Reverse engineering of pump as turbine for CFD analysis
title_sort reverse engineering of pump as turbine for cfd analysis
topic reverse engineering
3D scanning
pump as turbine (PAT)
CFD modelling
url https://ojs.cvut.cz/ojs/index.php/ap/article/view/9188
work_keys_str_mv AT jirisoucek reverseengineeringofpumpasturbineforcfdanalysis
AT evabilkova reverseengineeringofpumpasturbineforcfdanalysis
AT petrnowak reverseengineeringofpumpasturbineforcfdanalysis