To better understand the mechanism influencing periodic lattice structures in gas turbine blade cooling, these numerical simulations present a systematic comparison of effects cases involving pin-fin, Kagome, and BCC arrays on film-cooling effectiveness under three blowing ratios (i.e., M = 0.5, 1.0, 1.5). The results indicate that introduction array improves within whole streamwise range, espe...

the increase of cell temperature with increased irradiance is probably the mostsignificant disadvantage of using photovoltaic modules equipped with booster reflectors. the aimof this study is to investigate the possibility of improving the performance of a photovoltaic waterpumping system by using a booster reflector and to keep the temperature of pv panels at a lowlevel by cooling pv panels wi...

Graphene prepared on Cu foil by chemical vapor deposition was studied as a function of post growth cooling conditions. CuO islands embedded in the graphene film were discovered and studied by scanning electron microscopy, atomic force microscopy, and X-ray photoemission spectroscopy. It is shown that nanostructured holes can be formed within a graphene film by reduction using hydrogen cooling i...

Film-cooling flows are characterized by a row of jets injected at an angle from the blade surface or endwalls into the heated crossflow. The resulting flowfield is quite complex, and accurate predictions of the flow and heat transfer have been difficult to obtain using traditional two-equation turbulence models employed with ReynoldsAveraged Navier–Stokes (RANS) solvers. Recently, a four-equati...