Flow Angularity Investigations in an Automotive Slotted Wall Wind Tunnel

Some Experiments with Static Tubes at Transonic Speeds in a Slotted-Wall Wind Tunnel

Wall Interference and Boundary Simulation in a Transonic Wind Tunnel With a Discretely Slotted Test Section

A computational simulation of a transonic wind tunnel test section with longitudinally slotted walls is developed and described herein. The nonlinear slot model includes dynamic pressure e ects and a plenum pressure constraint, and each slot is treated individually. The solution is performed using a nite-di erence method that solves an extended transonic small disturbance equation. The walls se...

EXPERIMENTAL INVESTIGATION OF EFFECTS OF WALL POROSITY AND SUCTION ON THE FLOW QUALITY IN A TRANSONIC WIND TUNNEL

A trisonic wind tunnel has been modified to improve its flow quality when operating at transonic speeds through perforated walls and side suctions. The usefulness of such a perforated wall, already known, is reduction of the blockage effect as well as the shock elimination. Two types of perforated walls have been used in this investigation. The first wall had a porosity of about 22% and the hol...

Computational and experimental investigations of an omni-flow wind turbine

Both numerical and experimental studies were conducted to evaluate the performance of an omni-flow wind turbine designed to provide renewable electricity on the top of urban buildings like skyscrapers. The numerical approach was based on Finite Volume Method (FVM) and the turbulence flow was studied with several commonly used Reynoldsaveraged Navier-Stokes turbulence models. The results of the ...

A Computer Code to Model Swept Wings in an Adaptive Wall Transonic Wind Tunnel

A computer program has been developed to calculate inviscid transonic flow over a swept wing in a wind tunnel with specified normal flow at the walls. An approximately orthogonal computational grid which conforms to the wing and the tunnel walls was developed for application of the JamesonCaughey finite volume algorithm. the full potential equations in fully conservative form using line relaxat...