External Roughness Effects on the Mean Wind Pressure Distribution on Hyperbolic Cooling Towers,

摘要

The effect of external,concentrated roughness elements or ribs on the mean pressure distributions on model hyperbolic cooling towers in uniform wind was experimentally investigated in the 5-foot low-turbulence wind tunnel of the IIHR. Several longitudinal rib configurations were tested,varying systematically rib height,rib width,and rib spacing. Three uniformly distributed,or random,roughnesses were also tested for purposes of comparison.