On the mean path of buoyant, bent-over chimney plumes

Abstract

Careful plume-rise observations by photographic means have been made on smoke plumes from the Lakeview Generating Station (Ontario) and compared with some existing theoretical formulae. Supporting data in considerable detail on stack parameters were available.A linearly rising portion of the plume was found beyond a specific transition point in a neutral atmosphere. Also, the previously established simple power law , was found to agree quite well with observation up to the transition point.In an unstable atmosphere the plume was sometimes above and sometimes below a corresponding plume in neutral conditions, under the opposing influences of increased dilution and the direct effect of instability in promoting plume rise.