Studies of flow fields created by vertical and inclined jets when stationary or moving over a horizontal surface

摘要

Model tests have been carried out with single and twin nozzle arrangements, at varying inclinations. The decay of maximum velocity and temperature of the jet after impingement on the ground has been measured,nTransient effects associated with swivelling nozzles have been studied and measurements of the upwind extent and height of the exhaust cloud were made with the nozzles moving over the ground (taxiing). Empirical rules are given for estimating these effects from measurements made under static, steady-flow conditions.