Abstract The study presents an optimized pressure-sensitive paint (PSP) measurement system that was applied to investigate unsteady surface pressures on recently developed double-swept rotor blades in the test facility at German Aerospace Center (DLR) Göttingen. featured improved version of a double-shutter camera designed reduce image blur PSP measurements fast rotating blades. It also compris...

Twelve Wisconsin dairy herds were selected to include six sand freestall herds and six mattress freestall herds. For the duration of one 24 hour period, the mature cow high group pen on each farm was video filmed. For each herd, the film was analyzed every hour in order to determine the number of cows in the pen that were lying down, standing in the stall with all four feet and perching in the ...

In this paper, a thorough 2D unsteady computational fluid dynamic analysis was performed on pitching airfoil to properly comprehend the stall and aerodynamic forces. The software ANSYS Fluent used solve Reynolds-averaged Navier–Stokes equations. Low Reynolds number flows were modeled using k-ω shear stress transport turbulence model. Aerodynamic forces, flow structures, separation delay angles ...