Evaluation of Alternatives for Two-Dimensional Linear Cascade FacilitiesSource: Journal of Turbomachinery:;2009:;volume( 131 ):;issue: 003::page 31001Author:Paul M. Kodzwa
,
Gregory M. Laskowski
,
Paul A. Durbin
,
Amanda Vicharelli
,
Gorazd Medic
,
Christopher J. Elkins
,
John K. Eaton
DOI: 10.1115/1.2985073Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents two low-cost alternatives for turbine blade surface heat transfer and fluid dynamics measurements. These models embody careful compromises between typical academic and full-scale turbomachinery experiments and represent a comprehensive strategy to develop experiments that can directly test shortcomings in current turbomachinery simulation tools. A full contextual history of the wide range of approaches to simulate turbine flow conditions is presented, along with a discussion of their deficiencies. Both models are simplifications of a linear cascade: the current standard for simulating two-dimensional turbine blade geometries. A single passage model is presented as a curved duct consisting of two half-blade geometries, carefully designed inlet and exit walls and inlet suction. This facility was determined to be best suited for heat transfer measurements where minimal surface conduction losses are necessary to allow accurate numerical model replication. A double passage model is defined as a single blade with two precisely designed outer walls, which is most appropriate for flow measurements. The design procedures necessary to achieve a desired flow condition are discussed.
keyword(s): Pressure , Flow (Dynamics) , Cascades (Fluid dynamics) , Design , Blades , Heat transfer , Boundary layers , Suction , Measurement , Geometry , Simulation , Computer simulation , Airfoils AND Shapes ,
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contributor author | Paul M. Kodzwa | |
contributor author | Gregory M. Laskowski | |
contributor author | Paul A. Durbin | |
contributor author | Amanda Vicharelli | |
contributor author | Gorazd Medic | |
contributor author | Christopher J. Elkins | |
contributor author | John K. Eaton | |
date accessioned | 2017-05-09T00:35:47Z | |
date available | 2017-05-09T00:35:47Z | |
date copyright | July, 2009 | |
date issued | 2009 | |
identifier issn | 0889-504X | |
identifier other | JOTUEI-28755#031001_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/142154 | |
description abstract | This paper presents two low-cost alternatives for turbine blade surface heat transfer and fluid dynamics measurements. These models embody careful compromises between typical academic and full-scale turbomachinery experiments and represent a comprehensive strategy to develop experiments that can directly test shortcomings in current turbomachinery simulation tools. A full contextual history of the wide range of approaches to simulate turbine flow conditions is presented, along with a discussion of their deficiencies. Both models are simplifications of a linear cascade: the current standard for simulating two-dimensional turbine blade geometries. A single passage model is presented as a curved duct consisting of two half-blade geometries, carefully designed inlet and exit walls and inlet suction. This facility was determined to be best suited for heat transfer measurements where minimal surface conduction losses are necessary to allow accurate numerical model replication. A double passage model is defined as a single blade with two precisely designed outer walls, which is most appropriate for flow measurements. The design procedures necessary to achieve a desired flow condition are discussed. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Evaluation of Alternatives for Two-Dimensional Linear Cascade Facilities | |
type | Journal Paper | |
journal volume | 131 | |
journal issue | 3 | |
journal title | Journal of Turbomachinery | |
identifier doi | 10.1115/1.2985073 | |
journal fristpage | 31001 | |
identifier eissn | 1528-8900 | |
keywords | Pressure | |
keywords | Flow (Dynamics) | |
keywords | Cascades (Fluid dynamics) | |
keywords | Design | |
keywords | Blades | |
keywords | Heat transfer | |
keywords | Boundary layers | |
keywords | Suction | |
keywords | Measurement | |
keywords | Geometry | |
keywords | Simulation | |
keywords | Computer simulation | |
keywords | Airfoils AND Shapes | |
tree | Journal of Turbomachinery:;2009:;volume( 131 ):;issue: 003 | |
contenttype | Fulltext |