Wing downwash study and estimation of downwash effect on the tail plane is an important
task during the aircraft design process, although a lot of papers and works has been done, but the
experimental work is the most important, the progress in CFD simulation has reached to the point it is
able to reduce the number of runs in the wind tunnel. In this work CFD has been utilized to calculate
the downwash angle and downwash gradient with respect to the angle of attack over a high aspect
ratio of a typical UAV. The results of the simulation shall be used in the estimation and calculation of
the longitudinal static stability analysis of the UAV.
محمد مهدي عبدالله محمد | Mohammed Mahdi Abdulla Mohammed | 2573