Noun
the layer of slower flow of a fluid past a surface
Source: WordNetAbbott and von Doenhoff (1958), Chapter 5 Under usual flight conditions, the boundary layer remains attached to both the upper and lower surfaces all the way to the trailing edge, and its effect on the rest of the flow is modest. Source: Internet
Ablative Ablative heat shield (after use) on Apollo 12 capsule The ablative heat shield functions by lifting the hot shock layer gas away from the heat shield's outer wall (creating a cooler boundary layer ). Source: Internet
A boundary layer flow was created on both sides of a thin rigid flat plate which terminated with a square trailing edge. Source: Internet
A hot, less-dense lower boundary layer sends plumes of hot material upwards, and likewise, cold material from the top moves downwards. Source: Internet
Another significant application for boundary layer wind tunnel modeling is for understanding exhaust gas dispersion patterns for hospitals, laboratories, and other emitting sources. Source: Internet
At higher speeds on powered aircraft, the boundary layer on the airfoil is turbulent and more complex vortex shedding patterns have been observed. Source: Internet