Experimental Study on the Effects of Wind Break Walls on Top of the Natural Dry Draft Cooling Towers

Abstract

Nomenclature avelocity ratio; C ppressure coefficient; Frfroude number; ggravity acceleration, m/s 2 ; hheight from bottom of the tower, m; Hcooling tower height, m; P θperimeter pressure at pharynx of the model tower, Pa; P ∞pressure of the air flow on the tower, Pa; Re-Reynolds number; V iaverage velocity in the pharynx of the model tower, m/s; V Wwind velocity above tower, m/s Greek symbols ρair flow density above tower, kg/m 3 ; ρ ∞air flow density inside tower, kg/m 3 ; ∆ρdifference between air density and average air density inside tower, kg/m 3 ; θperimeter angle around tower, deg; υkinematic viscosity, m 2 /s