Testing the Validity of the Averaged Approximation for the IAsys
| Author(s) | Edwards, David A. | |
| Author(s) | Jackson, S.A. | |
| Date Accessioned | 2005-02-16T20:18:48Z | |
| Date Available | 2005-02-16T20:18:48Z | |
| Publication Date | 2002 | |
| Abstract | One device used to measure rate constants is the IAsys, and the flow in such a device can be modeled as stagnation point flow. Due to the special nature of the flow, the effects of transport on a surface reaction near a stagnation point may be incorporated exactly as long as the initial concentration of bound state is uniform. However, if the bound state is nonuniform initially, a complicated integrodifferential equation arises for the evolution of the bound state. Such a form is inconvenient for data analysis. The averaged approximation replaces the nonuniform initial state with its average, thus simplifying the analysis. This approximation is correct to O(Da) as the Damköhler number Da —> 0. A numerical simulation of the integrodifferential equation is performed which shows that the averaged approximation is useful even outside this regime. | en |
| Sponsor | This work was supported by the University of Delaware Research Foundation. | en |
| Extent | 170554 bytes | |
| MIME type | application/pdf | |
| URL | http://udspace.udel.edu/handle/19716/327 | |
| Language | en_US | |
| Publisher | Department of Mathematical Sciences | en |
| Part of Series | Technical Report: 2002-03 | |
| Keywords | Surface-volume reactions | en |
| Keywords | integrodifferential equations | en |
| Keywords | numerical simulation | en |
| Keywords | surface plasmon resonance | en |
| Keywords | IAsys | en |
| Title | Testing the Validity of the Averaged Approximation for the IAsys | en |
| Type | Technical Report | en |