In this contribution, the unsteady, viscous and two dimensional flow over a plunging NACA0012 airfoil was simulated using a high-order numerical method associated with a moving frame of reference technique. The goal of using a high-order numerical method is to characterize heaving airfoil wakes with very fine temporal and spatial resolutions. This characterization is essential in understanding ...

shock formation due to flow compressibility and its interaction with boundary layer has inappropriate effects, such as drag increase and flow separation. many methods have been proposed for reduction of these effects, such as vortex generator, suction, and blowing. this paper numerically studies the problem of flow control for naca0012 airfoil with porous media at transonic flow. porous media, ...

  Unsteady flow separation on the airfoils with local flexible membrane (LFM) has been investigated in transient and laminar flows by the finite volume element method. A unique feature of the present method compared with the common computational fluid dynamic softwares, especially ANSYS CFX, is the modification using the physical influence scheme in convection fluxes at cell surfaces. In contr...

A meshfree method based on the discrete gas-kinetic scheme (DGKS) (called meshfree-DGKS) for simulation of incompressible/compressible flows is proposed in this work. In approach, governing equations are discretized using least squares-based finite difference approach. To simulate compressible problems with discontinuities, virtual mid-points between adjacent nodes, which regarded as Riemann es...

active flow control has great importance in design of flying objects in general and control flaps in particular. using dielectric barrier discharge as plasma actuators over control flaps can cause a change in position of separation point or can eliminate it. this new flow control device produces a body force that causes generating a micro wall jet. the present study aims to investigate experime...