Wind-load, pressure and velocity measurements: Post processing and discussion

Because of the practical importance of bluff bodies subjected fluid flow, fluid dynamics around two-dimensional bluff bodies, especially circular cylinders, has been studied in light of three major parameters, namely flow-induced force, surface pressure and wake. Though all the three are interrelated, the first two are the integrated behavior of flow velocity around the cylinder. Thus measurements of flow-induced forces, surface pressures and velocity fields are very important in the engineering discipline. This paper discusses force and pressure measurement results for two circular cylinders at gap-spacing ratio T/D varied from 0.1 to 5 and the attack angle α from 0° to 180° where T is the gap width between the cylinders and D is the diameter of a cylinder. Post processing of pressure and force signals is also elaborated.