A wind tunnel investigation was performed to study the flow field over a 70° swept sharped edge delta wing model at high angles of attack. The experiments were conducted in the subsonic wind tunnel at the Department of Mechanical Engineering, Sharif University of Technology. Velocity profiles have been measured using a special pitot tube and hot wire anemometer at angles of attacks of 10 to 35 ...

A new multidomain/multiphysics computational framework for optimal control of aeroacoustic noise has been developed based on a near-field compressible Navier–Stokes solver coupled with a far-field linearized Euler solver both based on a discontinuous Galerkin formulation. In this approach, the coupling of near-and far-field domains is achieved by weakly enforcing continuity of normal fluxes acr...

Accurate thermal models can help to optimize the design of sailplanes. Theoretical models should be based on empirical evidence. However, very few measurements on the structure of thermals are published. This paper uses data mining techniques on data collected by swarms. In this case the swarm consists of the world’s best pilots in the world’s best gliders competing in a world championship at U...

The electricity supply is not evenly distributed for all regions in Indonesia. This due to the lack of transportation access reach these areas because difficult terrain conditions. One abundant energy sources available nature water, which can be used micro-level power generation. Micro hydro generator usually uses a waterfall with high head. However, water flow has head tall. Therefore, this st...

Abstract We evaluate the aerodynamic performance of several passive vortex generators (VGs) placed on a standard Ahmed body, with slant angle ( ? = 35º), subjected to different yawing angles ? ) using RANS-based models. Rigorous validation numerical results is performed previously published experimental data for ? 8º) body. Our model depict good overall agreement sets. An array such as delta-wi...