Surface flow and erosion
Storyboard 
While within the soil, the flow is limited by the level of compaction, on the surface, it can drain freely, carrying away part of the upper layer. Specifically, this flow carries the smaller particles corresponding to clay, altering the texture of the surface layer and affecting the support for vegetation growth.
ID:(380, 0)
Surface flow and erosion
Storyboard 
While within the soil, the flow is limited by the level of compaction, on the surface, it can drain freely, carrying away part of the upper layer. Specifically, this flow carries the smaller particles corresponding to clay, altering the texture of the surface layer and affecting the support for vegetation growth.
Variables
Calculations
Calculations
Equations
Examples
En el caso de un canal cil ndrico el perfil de la distribuci n de velocidades es
donde
En este caso la diferencia de presi n
$dp=\displaystyle\frac{1}{2}\rho(v(R)^2-v(R-w)^2)$
lo que resulta en
Si la altura de la plaquita mucho menor al radio del capilar (
se reduce a:
donde
La condici n de que la plaquita levite
se puede reescribir con
resultando la condici n
Para poder emplear esta relaci n debemos estudiar el flujo por un capilar y en particular reemplazar la velocidad m xima
ID:(380, 0)
