익형 주위의 압축성 습공기 유동에 대한 수칙해석 = A Computational Study on Compressible Flow of Humid Air Around Airfoil

다국어 초록 (Multilingual Abstract)

Latent heat is generated when the phase of water vapor in humid air is changed. This changes the properties of compressible flows around airfoils and is investigated by numerical simulations. The computations are based on a recent small-disturbance approach by Rusak and Lee [1]. This approach describes the heat release by the nonequilibrium and homogeneous condensation process using the classical nucleation and droplet growth models. The nonlinear interaction between the heat transfer by the condensation, the kinetic energy of the compressible flow, and the thermal properties of the flow is explored and the similarity parameters which govern the problem are presented. The results of the calculations show good agreement with available simulations using the Euler equations. The similarity rules are used to suggest various flow cases which have a sufficiently close behavior of both the flow dynamics and the condensation properties. It is shown that compressible flows of humid air may be applied to augment the aerodynamic performance of airfoils used in fluid machinery.