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Design and experimental results for the S809 airfoil

D.M. Somers
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TLDR
In this article, a 21-percent-thick laminar flow airfoil, the S809, for horizontal-axis wind-turbine applications, has been designed and analyzed theoretically and verified experimentally in the lowturbulence wind tunnel of the Delft University of Technology Low Speed Laboratory, The Netherlands.
Abstract: 
A 21-percent-thick, laminar-flow airfoil, the S809, for horizontal-axis wind-turbine applications, has been designed and analyzed theoretically and verified experimentally in the low-turbulence wind tunnel of the Delft University of Technology Low Speed Laboratory, The Netherlands. The two primary objectives of restrained maximum lift, insensitive to roughness, and low profile drag have been achieved. The airfoil also exhibits a docile stall. Comparisons of the theoretical and experimental results show good agreement. Comparisons with other airfoils illustrate the restrained maximum lift coefficient as well as the lower profile-drag coefficients, thus confirming the achievement of the primary objectives.

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 
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 
 
 
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 
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 
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       
   
                       

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
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
                           
 
    
 
   
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


 

  
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  
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 
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    
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Citations
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Journal Article

羟氨苄青霉素引起大疱性类天疱疮样疹

Yonghongzhai Lu
- 15 Nov 1992 - 
Journal ArticleDOI

Correlation-Based Transition Modeling for Unstructured Parallelized Computational Fluid Dynamics Codes

Robin Langtry, +1 more
- 01 Dec 2009 - 
TL;DR: The main goal of the present paper is to publish the full model and release it to the research community so that it can continue to be further validated and possibly extended or improved.
ReportDOI

Unsteady Aerodynamics Experiment Phase VI: Wind Tunnel Test Configurations and Available Data Campaigns

Maureen Hand, +6 more
TL;DR: In this article, insteady aerodynamics experiment was used to provide information needed to quantify the full-scale, three-dimensional aerodynamic behavior of horizontal-axis wind turbines and to familiarize the user with the entire scope of the wind tunnel test and to support the use of the resulting data.
Journal ArticleDOI

A Three-Equation Eddy-Viscosity Model for Reynolds-Averaged Navier-Stokes Simulations of Transitional Flow

D. Keith Walters, +1 more
- 01 Dec 2008 - 
TL;DR: In this article, an eddy-viscosity turbulence model employing three additional transport equations is presented and applied to a number of transitional flow test cases, which is based on the k- framework and represents a substantial refinement to a transition-sensitive model that has been previously documented in the open literature.
ReportDOI

NREL Unsteady Aerodynamics Experiment in the NASA-Ames Wind Tunnel: A Comparison of Predictions to Measurements

D. Simms, +3 more
TL;DR: The Unsteady Aerodynamics Experiment (UAE) as discussed by the authors was a test of an extensively instrumented wind turbine in the giant NASA-Ames 24.4m (80 feet) by 36.6m (120 feet) wind tunnel.
References
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Journal ArticleDOI

J+=j

Michael Wolfe
- 01 Jul 1994 - 
Journal Article

羟氨苄青霉素引起大疱性类天疱疮样疹

Yonghongzhai Lu
- 15 Nov 1992 - 

Theory of Wing Sections

Ira H Abbott, +1 more
TL;DR: Chang et al. as discussed by the authors proposed a new geometric analysis procedure for wing sections based on the normal mode analysis for continuous functions, which can be used to calculate the section length.

Fluid-dynamic drag

S. F. Hoerner

I i i i i i i i i

Bayesian Rcvr, +1 more
TL;DR: WFP KENYA ACTED, CHF, Concern, FAO, FH, Horn Relief, IFRC, IMC, KRCS, Mercy Corps, Mercy USA, Merlin, OCHA, Oxfam, SC/US, UNICEF, WASDA, WFP, WHH J AC C C Agriculture and Food Security Economic Recovery and Market Systems Food Assistance Health Humanitarian Coordination and Information Management Humanitarian Studies, Analysis, or Applications Logistics and Relief Commodities Multisectoral Assistance Natural and Technological Risks Nutrition Protection Refugee Assistance Water,
Related Papers (5)

Two-equation eddy-viscosity turbulence models for engineering applications

Florian R. Menter
- 01 Aug 1994 - 

Unsteady Aerodynamics Experiment Phase VI: Wind Tunnel Test Configurations and Available Data Campaigns

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A one-equation turbulence model for aerodynamic flows

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NREL Unsteady Aerodynamics Experiment in the NASA-Ames Wind Tunnel: A Comparison of Predictions to Measurements

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Correlation-Based Transition Modeling for Unstructured Parallelized Computational Fluid Dynamics Codes

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- 01 Dec 2009 - 
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Q1. What are the contributions mentioned in the paper "Design and experimental results for the s809 airfoil" ?

In this paper, the authors present a survey of the state-of-the-art tools and techniques used in the design of the HMD.