Turbine Passage Design Methodology to Minimize Entropy Production—A Two-Step Optimization Strategy

Rapid aerodynamic design and optimization is essential for the development of future turbomachinery. The objective of this work is to demonstrate a methodology from 1D mean-line-design to a full 3D aerodynamic optimization of the turbine stage using a parameterization strategy that requires few para...

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Main Authors: Paht Juangphanich, Cis De Maesschalck, Guillermo Paniagua
Format: Article
Language:English
Published: MDPI AG 2019-06-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/21/6/604
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author Paht Juangphanich
Cis De Maesschalck
Guillermo Paniagua
author_facet Paht Juangphanich
Cis De Maesschalck
Guillermo Paniagua
author_sort Paht Juangphanich
collection DOAJ
description Rapid aerodynamic design and optimization is essential for the development of future turbomachinery. The objective of this work is to demonstrate a methodology from 1D mean-line-design to a full 3D aerodynamic optimization of the turbine stage using a parameterization strategy that requires few parameters. The methodology is tested by designing a highly loaded and efficient turbine for the Purdue Experimental Turbine Aerothermal Laboratory. This manuscript describes the entire design process including the 2D/3D parameterization strategy in detail. The objective of the design is to maximize the entropy definition of efficiency while simultaneously maximizing the stage loading. Optimal design trends are highlighted for both the stator and rotor for several turbine characteristics in terms of pitch-to-chord ratio as well as the blades metal and stagger angles. Additionally, a correction term is proposed for the Horlock efficiency equation to maximize the accuracy based on the measured blade kinetic losses. Finally, the design and performance of optimal profiles along the Pareto front are summarized, featuring the highest aerodynamic performance and stage loading.
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spelling doaj.art-87976a83cdae484f9f907f9b1bb9b2972022-12-22T04:00:02ZengMDPI AGEntropy1099-43002019-06-0121660410.3390/e21060604e21060604Turbine Passage Design Methodology to Minimize Entropy Production—A Two-Step Optimization StrategyPaht Juangphanich0Cis De Maesschalck1Guillermo Paniagua2School of Aeronautical Engineering, Purdue University, West Lafayette, IN 47906, USASchool of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-2088, USASchool of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-2088, USARapid aerodynamic design and optimization is essential for the development of future turbomachinery. The objective of this work is to demonstrate a methodology from 1D mean-line-design to a full 3D aerodynamic optimization of the turbine stage using a parameterization strategy that requires few parameters. The methodology is tested by designing a highly loaded and efficient turbine for the Purdue Experimental Turbine Aerothermal Laboratory. This manuscript describes the entire design process including the 2D/3D parameterization strategy in detail. The objective of the design is to maximize the entropy definition of efficiency while simultaneously maximizing the stage loading. Optimal design trends are highlighted for both the stator and rotor for several turbine characteristics in terms of pitch-to-chord ratio as well as the blades metal and stagger angles. Additionally, a correction term is proposed for the Horlock efficiency equation to maximize the accuracy based on the measured blade kinetic losses. Finally, the design and performance of optimal profiles along the Pareto front are summarized, featuring the highest aerodynamic performance and stage loading.https://www.mdpi.com/1099-4300/21/6/604optimizationturbineturbomachinerydesign
spellingShingle Paht Juangphanich
Cis De Maesschalck
Guillermo Paniagua
Turbine Passage Design Methodology to Minimize Entropy Production—A Two-Step Optimization Strategy
Entropy
optimization
turbine
turbomachinery
design
title Turbine Passage Design Methodology to Minimize Entropy Production—A Two-Step Optimization Strategy
title_full Turbine Passage Design Methodology to Minimize Entropy Production—A Two-Step Optimization Strategy
title_fullStr Turbine Passage Design Methodology to Minimize Entropy Production—A Two-Step Optimization Strategy
title_full_unstemmed Turbine Passage Design Methodology to Minimize Entropy Production—A Two-Step Optimization Strategy
title_short Turbine Passage Design Methodology to Minimize Entropy Production—A Two-Step Optimization Strategy
title_sort turbine passage design methodology to minimize entropy production a two step optimization strategy
topic optimization
turbine
turbomachinery
design
url https://www.mdpi.com/1099-4300/21/6/604
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AT cisdemaesschalck turbinepassagedesignmethodologytominimizeentropyproductionatwostepoptimizationstrategy
AT guillermopaniagua turbinepassagedesignmethodologytominimizeentropyproductionatwostepoptimizationstrategy