View source for Mechanical internal boundary layer

{{Term
|Display title=mechanical internal boundary layer
|Definitions={{Definition
|Num=1
|Meaning=(Abbreviated MIBL.) An [[internal boundary layer]] caused  by [[advection]] of air across a [[discontinuity]] in [[surface roughness]].
|Explanation=When the new surface is rougher than the old one, the MIBL depth grows roughly as the 0.8  power of the ratio of the two [[roughness lengths]]. In this example, the MIBL grows to include  the whole [[surface layer]].
}}
}}