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A Lagrangian Solution To The Relationship Between A Distributed Source And Concentration Profile

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Title: A Lagrangian Solution To The Relationship Between A Distributed Source And Concentration Profile
Author: Warland, Jon; Thurtell, George W.
Abstract: A new solution is presented to the problem ofrelating source strength and concentration profiles within a plant canopy. The solution is based on the Lagrangian dispersion theory developed by G. I. Taylor in 1921. A dispersion matrix is derived that relates the source and concentration profiles based on profiles of the turbulent length and velocity scales. The matrix translates the effects of persistence (a temporal effect) into spatialcoordinates and represents the change from near-field to far-field in acontinuous fashion, successfully accounting for both regimes. A test ofthe new model using wind-tunnel data showed excellent quantitative agreement between model and measurements. A comparison was also made withM. R. Raupach's localized near-field theory, which underestimated the near-field effect in the wind-tunnel data and relative to the new model.
URI: http://hdl.handle.net/10214/2093
Date: 2000
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Citation: Warland, J. and Thurtell, G.W. "A Lagrangian Solution To The Relationship Between A Distributed Source And Concentration Profile." Boundary-Layer Meteorology 96.3 (2000): 453-471


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