@techreport{oai:jaxa.repo.nii.ac.jp:00043508, author = {磯貝, 紘二 and Isogai, Koji}, month = {Dec}, note = {Numerical simulations of dynamic stall phenomenon of NACA0012 airfoil oscillating in pitch near static stalling angle are performed by using the compressible Navier-Stokes equations. In the present computations, a TVD scheme and an algebraic turbulence model are employed for the simulations of the unsteady separated flows at Reynolds number of 1.1x105. The hysteresis loops of the unsteady pitching moment during dynamic stall are compared with the existing experimental data. The flow pattern and the unsteady pressure distributions during dynamic stall are also examined in detail. The qualitative features of the dynamic stall phenomenon, such as the behaviors of the total lift and pitching moment and the formation of the leading edge separation vortex are well reproduced by the present computations., 資料番号: NALSP0016012, レポート番号: NAL SP-16}, title = {振動翼まわりの非定常大規模はく離流の数値シミュレーション}, year = {1991} }