Artículos de revistas
Two stream approximation to radiative transfer equation: an alternative method of solution
Two stream approximation to radiative transfer equation: an alternative method of solution
Autor
Jiménez Aquino, J. I.
Varela, J. R.
Institución
Resumen
Se presenta un método alternativo para la solución analítica de las ecuaciones que describen la transmisión de radiación en la atmósfera, mediante la aproximación de dos flujos. El método se basa en una formulación de ecuaciones de tipo difusivo asociadas a los flujos (irradiancias) Fd = F+ - F- y Fs = F+ + F-, donde F+ y F- se definen como flujos ascendente y descendente respectivamente. Estas ecuaciones resultan ser independientes y en consecuencia se obtiene un método de solución directo. An alternative analytical method of solution to radiative transfer equation in the two-stream approximation is studied. The method is formulated in terms of the diffusion-type equation for radiative transfer associated with the fluxes (irradiances) Fd = F+ - F- and Fs = F+ + F-, where F+ and F- are defined as the upward and downward fluxes respectively. The diffusion-type equations are independent and therefore the method of solution is algebraically easier and faster than that used to solve the two coupled differential equations associated with F+ and F-.