Validation of the CQU-DTU-LN1 series of airfoils

Wen Zhong Shen; Wei Jun Zhu; Andreas Fischer; Néstor Ramos García; Jiangtao Cheng; Jin Chen; J. Madsen

doi:10.1088/1742-6596/555/1/012093

Validation of the CQU-DTU-LN1 series of airfoils

Wen Zhong Shen, Wei Jun Zhu, Andreas Fischer, Néstor Ramos García, Jiangtao Cheng, Jin Chen, J. Madsen

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Abstract

The CQU-DTU-LN1 series of airfoils were designed with an objective of high lift and low noise emission. In the design process, the aerodynamic performance is obtained using XFOIL while noise emission is obtained with the BPM model. In this paper we present some validations of the designed CQU-DTU-LN118 airfoil by using wind tunnel measurements in the acoustic wind tunnel located at Virginia Tech and numerical computations with the inhouse Q3uic and EllipSys 2D/3D codes. To show the superiority of the new airfoils, comparisons with a NACA64618 airfoil are made. For the aerodynamic features, the designed Cl and Cl/Cd agrees well with the experiment and are in general higher than those of the NACA airfoil. For the acoustic features, the noise emission of the LN118 airfoil is compared with the acoustic measurements and that of the NACA airfoil. Comparisons show that the BPM model can predict correctly the noise changes.

Original language	English
Article number	012093
Book series	Journal of Physics: Conference Series (Online)
Volume	555
Number of pages	10
ISSN	1742-6596
DOIs	https://doi.org/10.1088/1742-6596/555/1/012093
Publication status	Published - 2014
Event	The science of Making Torque from Wind 2012: 4th scientific conference - Universität Oldenburg, Oldenburg, Germany Duration: 9 Oct 2012 → 11 Oct 2012 http://www.forwind.de/makingtorque/Home.html

Conference

Conference	The science of Making Torque from Wind 2012
Location	Universität Oldenburg
Country/Territory	Germany
City	Oldenburg
Period	09/10/2012 → 11/10/2012
Internet address	http://www.forwind.de/makingtorque/Home.html

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Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd

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title = "Validation of the CQU-DTU-LN1 series of airfoils",

abstract = "The CQU-DTU-LN1 series of airfoils were designed with an objective of high lift and low noise emission. In the design process, the aerodynamic performance is obtained using XFOIL while noise emission is obtained with the BPM model. In this paper we present some validations of the designed CQU-DTU-LN118 airfoil by using wind tunnel measurements in the acoustic wind tunnel located at Virginia Tech and numerical computations with the inhouse Q3uic and EllipSys 2D/3D codes. To show the superiority of the new airfoils, comparisons with a NACA64618 airfoil are made. For the aerodynamic features, the designed Cl and Cl/Cd agrees well with the experiment and are in general higher than those of the NACA airfoil. For the acoustic features, the noise emission of the LN118 airfoil is compared with the acoustic measurements and that of the NACA airfoil. Comparisons show that the BPM model can predict correctly the noise changes.",

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note = "Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd; The science of Making Torque from Wind 2012 : 4th scientific conference ; Conference date: 09-10-2012 Through 11-10-2012",

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AU - Fischer, Andreas

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AU - Cheng, Jiangtao

AU - Chen, Jin

AU - Madsen, J.

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AB - The CQU-DTU-LN1 series of airfoils were designed with an objective of high lift and low noise emission. In the design process, the aerodynamic performance is obtained using XFOIL while noise emission is obtained with the BPM model. In this paper we present some validations of the designed CQU-DTU-LN118 airfoil by using wind tunnel measurements in the acoustic wind tunnel located at Virginia Tech and numerical computations with the inhouse Q3uic and EllipSys 2D/3D codes. To show the superiority of the new airfoils, comparisons with a NACA64618 airfoil are made. For the aerodynamic features, the designed Cl and Cl/Cd agrees well with the experiment and are in general higher than those of the NACA airfoil. For the acoustic features, the noise emission of the LN118 airfoil is compared with the acoustic measurements and that of the NACA airfoil. Comparisons show that the BPM model can predict correctly the noise changes.

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Validation of the CQU-DTU-LN1 series of airfoils

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