Numerical aerodynamic drag prediction of airfoils
In this project, the various components of drag are obtained. Two cases are considered here – the transonic flow over a RAE2822 airfoil and the subsonic flow over a NACA0012 airfoil. For the transonic flow, the total drag, wave drag and viscous drag are obtained. The first two are obtained by integ...
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sg-ntu-dr.10356-189882023-03-04T18:16:58Z Numerical aerodynamic drag prediction of airfoils Venugopalan Srinivasa Gopala Raghavan Damodaran Murali Kuan Tek Seang School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering::Fluid mechanics In this project, the various components of drag are obtained. Two cases are considered here – the transonic flow over a RAE2822 airfoil and the subsonic flow over a NACA0012 airfoil. For the transonic flow, the total drag, wave drag and viscous drag are obtained. The first two are obtained by integrating the entropy equation along the wake and across the shock respectively. The values obtained showed good agreement of within ten percent variation. For the case of the subsonic flow, the effects of varying the turbulence model was also considered. It was seen that the two-equation of the SST k-ω turbulence model seemed to show better agreement with the experimental trends as opposed to the one equation turbulence model of Spalart-Allmaras. Bachelor of Engineering 2009-08-26T08:04:33Z 2009-08-26T08:04:33Z 2009 2009 Final Year Project (FYP) http://hdl.handle.net/10356/18988 en Nanyang Technological University 55 p. application/pdf |
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DRNTU::Engineering::Mechanical engineering::Fluid mechanics Venugopalan Srinivasa Gopala Raghavan Numerical aerodynamic drag prediction of airfoils |
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In this project, the various components of drag are obtained. Two cases are considered here – the transonic flow over a RAE2822 airfoil and the subsonic flow over a NACA0012 airfoil. For the transonic flow, the total drag, wave drag and viscous drag are obtained. The first two are obtained by integrating the entropy equation along the wake and across the shock respectively. The values obtained showed good agreement of within ten percent variation. For the case of the subsonic flow, the effects of varying the turbulence model was also considered. It was seen that the two-equation of the SST k-ω turbulence model seemed to show better agreement with the experimental trends as opposed to the one equation turbulence model of Spalart-Allmaras. |
author2 |
Damodaran Murali |
author_facet |
Damodaran Murali Venugopalan Srinivasa Gopala Raghavan |
format |
Final Year Project |
author |
Venugopalan Srinivasa Gopala Raghavan |
author_sort |
Venugopalan Srinivasa Gopala Raghavan |
title |
Numerical aerodynamic drag prediction of airfoils |
title_short |
Numerical aerodynamic drag prediction of airfoils |
title_full |
Numerical aerodynamic drag prediction of airfoils |
title_fullStr |
Numerical aerodynamic drag prediction of airfoils |
title_full_unstemmed |
Numerical aerodynamic drag prediction of airfoils |
title_sort |
numerical aerodynamic drag prediction of airfoils |
publishDate |
2009 |
url |
http://hdl.handle.net/10356/18988 |
_version_ |
1759855682285207552 |