Author:
Viré Axelle,Demkowicz Patryk,Folkersma Mikko,Roullier Arthur,Schmehl Roland
Abstract
Abstract
In this work we present Reynolds-averaged Navier-Stokes (RANS) simulations of the flow past the constant design shape of a leading-edge inflatable (LEI) wing. The simulations are performed with a steady-state solver using a k − ω SST turbulence model, covering a range of Reynolds numbers between 105 ≤ and ≤ 15 × 106 and angles of attack varying between −5° and 24°, which are representative for operating conditions in airborne wind energy applications. The resulting force distributions are used to characterize the aerodynamic performance of the wing. We found that a γ −
R
¯
e
θ
transition model is required to accurately predict the occurrence of stall up to at least Re= 3 × 106. The work highlights similarities with the flow past a two-dimensional LEI airfoil, in particular, with respect to flow transition and its influence on the aerodynamic properties. The computed values of the lift and drag coefficients agree well with in-flight measurements acquired during the traction phase of the LEI wing operation. The simulations show that the three-dimensional flow field exhibits a significant cross flow along the span of the wing.
Subject
General Physics and Astronomy
Reference31 articles.
1. Airborne wind energy systems: A review of the technologies;Cherubini;Renewable and Sustainable Energy Reviews,2015
2. Numerical simulation of the turbulent flow past upwind yacht sails;Collie;ournal of Wind Engineering and Industrial Aerodynamics,2002
3. Comparison of two kite force models with experiment;Dadd;Journal of Aircraft,2010
Cited by
6 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献