MEAN FLUID FORCES AND MOMENTS ON RECTANGULAR PRISMS: SURFACE-MOUNTED STRUCTURES IN TURBULENT SHEAR FLOW.

ESDU 80003 provides information for estimating the mean forces and moments on surface-mounted rectangular prisms in turbulent shear flow, typically a rectangular building in the natural wind. The prism shapes covered have cross sections with side ratios in the range 0. 25 to 4 and height/width ratios greater than 0. 25. Flows with turbulence intensities up to 20 percent are covered and data for flows for turbulence length scale/prism side up to 2 and velocity profile exponents up to 0. 34 were included in the correlation. A Calculation Sheet provides a step-by-step procedure for calculating forces and moments and a worked example illustrates its use.