Akademik Məlumat İdarəetmə Sistemi
AIAA Aviation 2019 Forum, Texas, United States Of America, 17 - 21 June 2019, pp.1-15, (Full Text)
In this paper, the thermal effects of solar panels are investigated experimentally and computationally on an unmanned air vehicle. The surface temperature and output voltage of two different types of solar panels, flexible and solid panels, are investigated under a heat lamp. The heat lamp provides the radiation and increase in temperature of the solar panels. A thermal camera and laser thermometer are used to measure the surface temperature of the solar panels. Considering a tilt-rotor UAV as a case study, an energy balance is modeled for the wing of UAV, which is assumed as a flat plate. Applying the Blasius boundary layer for laminar flow, it is shown that there is a skin friction drag reduction on the top surface of the solar panel due to its dark color. In order to validate the result of the proposed model, a thermal-fluid study is carried-out on NACA 2412 in COMSOL to investigate the effects of the surface temperature of the solar panel in skin drag reduction. The results indicate that an increase in the surface temperature of the solar panel will decrease the output voltage to a maximum of 7% while this increase in temperature will reduce the drag up to 10%.