Turbulent diffusion of mass in circular pipe flow |
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Authors: | Anish N. Puri Chin Y. Kuo Raymond S. Chapman |
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Affiliation: | Department of Civil Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA |
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Abstract: | An implicit finite difference scheme was used to solve the convective-diffusion equation to predict the steady-state transport of a conservative, neutrally bouyant tracer injected along the centreline into a fully developed turbulent pipe flow. Three different distributions for the radial mass diffusivity have been compared with two independent sets of experimental data. The results indicate that the distribution based on the turbulent kinematic eddy viscosity predicted by a k?l model produces the closest agreement between the numerical model predictions and the experimentally observed tracer distribution. |
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Keywords: | mathematical model turbulent diffusion pipe flow |
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