Control of Karman Vortex Street By Using Plasma Actuators
作者机构：Institute of Transport Systems and Technologies of National Academy of Science of UkraineDnipro49005Ukraine College of EngineeringZhejiang Normal UniversityJinhua321004China Kherson National Technical UniversityKherson73008Ukraine
出 版 物：《Fluid Dynamics & Materials Processing》 (流体力学与材料加工（英文）)
年 卷 期：2019年第15卷第5期
页 面：509-525页
核心收录：
学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学]
主 题：Plasma actuator dielectric barrier discharge turbulent flow Navier-Stokes equations numerical simulation
摘 要：A mathematical model for unsteady electro-and aerodynamic processes in the presence of a plasma actuator has been elaborated through physical modeling of the dielectric barrier discharge.A specialized computational fluid dynamics package has been developed accordingly in order to calculate steady and unsteady laminar and turbulent *** the numerical simulation of the dielectric barrier discharge,in particular,two equations have been added to the Navier-Stokes equations and *** describe the distribution of the applied voltage and the charged particles *** impact of the plasma actuator on air has been accounted for through the Lorentz force,included as a source term in the momentum balance *** system of governing equations for the considered hydrodynamics and electrodynamics has been written in an arbitrary curvilinear coordinate system in dimensionless form and integrated in the framework of a finite volume method.A TVD scheme with a third-order ISNAS flow limiter has been chosen for the convective terms *** obtained block-matrix system of linear algebraic equations has been solved by the generalized minimal residual(GMRES)method with ILU(k)*** this approach,the occurrence of a propulsion force,emerging as a result of the action of plasma actuators on a cylinder in quiescent air,has been *** possibility to mitigate the cylinder drag coefficient with the help of the plasma actuators,due to the ensuing suppression of the Karman vortex street,has been demonstrated.
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