Fluid flow around NACA 0012 airfoil at low-Reynolds numbers with hybrid lattice Boltzmann method
نویسندگان
چکیده
منابع مشابه
Direct Numerical Simulation of Flows over an NACA-0012 Airfoil at Low and Moderate Reynolds Numbers
Direct numerical simulations (DNS) of flow over an NACA-0012 airfoil are performed at a low and a moderate Reynolds numbers of Rec=50*10 and 1*10. The angles of attack are 5 and 15 degrees at the low and the moderate Reynolds number cases respectively. The three-dimensional unsteady compressible Navier-Stokes equations are solved using higher order compact schemes. The flow field in the low Rey...
متن کاملFlow Instability around a 2d Airfoil Induced by Acoustic Disturbances at Low Reynolds Numbers
In this paper, a numerical study is presented to investigate a boundary-layer instability on the suction side of a NACA0006 airfoil, induced by aerodynamic sound scattered from a trailingedge. By incorporating a linear stability analysis into the direct simulations with a compressible Navier-Stokes code using high-order accurate schemes, the unsteady characteristics are estimated upon resolving...
متن کاملDirect Numerical Simulation of the turbulent flow around a NACA 0012 airfoil at different angles of attack
Direct numerical simulations (DNS) of the flow dynamics over a NACA 0012 airfoil at Reynolds number Re = 5× 104 at different angles of attack are presented. The dynamic of the large separation bubble, characterised by laminar boundary layer separation, transition to turbulence and flow reattachment is analysed in detail by means of instantaneous data al different locations in the suction side o...
متن کاملAerodynamic Noise Computation of the Flow Field around NACA 0012 Airfoil Using Large Eddy Simulation and Acoustic Analogy
The current study presents the results of the aerodynamic noise prediction of the flow field around a NACA 0012 airfoil at a chord-based Reynolds number of 100,000 and at 8.4 degree angle of attack. An incompressible Large Eddy Simulation (LES) turbulence model is applied to obtain the instantaneous turbulent flow field. The noise prediction is performed by the Ffowcs Williams and Hawkings (FW-...
متن کاملoptimization of suction jet length on naca 0012 airfoil with using of reynolds stress model (rsm)
in this study, the effect of suction and the parameters such as suction amplitude, suction coefficient and suction jet length on naca0012 was evaluated. the turbulence employed model was the rsm model. suction jet is located in 10% of the chord length. the range of suction jet entrance velocity was selected from 0.1 to 0.5 of freestream velocity. the maximum increase in lift to drag ratio was s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Computers & Fluids
سال: 2018
ISSN: 0045-7930
DOI: 10.1016/j.compfluid.2018.02.014