Diffusion Model Study in Chemically Reacting Air Couette Flow with Hydrogen Injection PDF Download

Author: Randoph A. Graves (Jr.)
Publisher:
ISBN:
Category : Chemical reactions
Languages : en
Pages : 60

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Book Description
An analytical study of the effects of hydrogen injection and chemical reaction on the flow properties of Couette flow has been conducted. Special emphasis was given to the diffusion model assumed for the calculations. Three diffusion models were chosen for the analysis: Fick's law (binary diffusion), multicomponent diffusion, and an approximation to the multicomponent diffusion. In the Fick's law model, three methods of obtaining the diffusion coefficient were also investigated. Implicit finite-difference numerical solutions to the governing equations for Couette flow were obtained for the three diffusion models over a range of hydrogen injection rates. The results indicate that there are significant differences between the solutions for the diffusion models and these differences are manifested in the concentration profiles and the wall heating rates.