Diffusion Models of Environmental Transport

ISBN-13: 9781566704144 / Angielski / Twarda / 1999 / 208 str.

Bruce Choy; Danny D. Reible

Opis

Now, there is Diffusion Models of Environmental Transport, which provi des more than 40 analytical models of diffusion and advective-diffusio n in one, two, and three layer systems, subject to a wide range of bou ndary and initial conditions. This text illustrates applications to co ntaminant transport in sediments and soils, including porewater and va por transport, and also provides Mathcad spreadsheets to aid in the us e of these models. The authors supply complete details of the solutio ns to the models for those who wish for a deeper understanding. For ot hers, who do not have the time or the need, the solutions themselves a re ready to be picked up and used. Reible and Choy use their 20-plus years of cumulative experience to create a thorough exploration of fat e and transport models. This comprehensive text furnishes an invaluabl e reference for students and environmental professionals.

Spis treści

Environmental Transport Modeling Introduction Outline Preliminaries Equilibrium Between Environmental Tables Diffusion and the Diffusion Coefficient Surface Mass Transfer Coefficient Mass Balance and Transport Equations Diffusion in a Semi-Infinite Soil/Sediment System Introduction Analysis Summary Numerical Evaluation Development Diffusion in a Finite Layer Soil/Sediment Bed Introduction Analysis Summary Numerical Evaluation Development Diffusion in a Two-Layer Composite Soil/Sediment Bed Introduction Analysis Summary Numerical Evaluation Development Diffusion in a Three-Layer Composite Soil/Sediment Bed Introduction Analysis Summary Numerical Evaluation Development Advection-Diffusion Models Introduction Analysis Summary Numerical Evaluation Development Volatile Liquid Evaporation and Diffusion Through a Soil/Sediment Bed Introduction Analysis Summary Numerical Evaluation Development Diffusion in Systems with Time Dependent Soil-Air Partition Coefficients Introduction Mathematical Analysis Analysis Summary Variable Transformation on a Variety of Time Dependent Air-Soil Partition Coefficient Functions Development Miscellaneous Transport Models Constant Flux, Volatile Liquid Evaporation with Uniform Initial Liquid Saturation Appendices Error Function Laplace Transformation Roots of Transcendental Equations Predicting the Diffusion Coefficient in Vapor Predicting the Diffusion Coefficient in Liquid Sample Calculations of Models Using Mathcad (TM) 7

O autorze

Choy, Bruce; Reible, Danny D.