CFD Prediction of Airfoil Drag in Viscous Flow Using the Entropy Generation Method
Joint Authors
Wang, Wei
Wang, Jun
Liu, Hui
Jiang, Bo-yan
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-05-16
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
A new aerodynamic force of drag prediction approach was developed to compute the airfoil drag via entropy generation rate in the flow field.
According to the momentum balance, entropy generation and its relationship to drag were derived for viscous flow.
Model equations for the calculation of the local entropy generation in turbulent flows were presented by extending the RANS procedure to the entropy balance equation.
The accuracy of algorithm and programs was assessed by simulating the pressure coefficient distribution and dragging coefficient of different airfoils under different Reynolds number at different attack angle.
Numerical data shows that the total entropy generation rate in the flow field and the drag coefficient of the airfoil can be related by linear equation, which indicates that the total drag could be resolved into entropy generation based on its physical mechanism of energy loss.
American Psychological Association (APA)
Wang, Wei& Wang, Jun& Liu, Hui& Jiang, Bo-yan. 2018. CFD Prediction of Airfoil Drag in Viscous Flow Using the Entropy Generation Method. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1207442
Modern Language Association (MLA)
Wang, Wei…[et al.]. CFD Prediction of Airfoil Drag in Viscous Flow Using the Entropy Generation Method. Mathematical Problems in Engineering No. 2018 (2018), pp.1-15.
https://search.emarefa.net/detail/BIM-1207442
American Medical Association (AMA)
Wang, Wei& Wang, Jun& Liu, Hui& Jiang, Bo-yan. CFD Prediction of Airfoil Drag in Viscous Flow Using the Entropy Generation Method. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1207442
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1207442