?? ??? ??? ?? ??? ????? ?????. ??? ??? ?? ???? ??? ???, ??? ?? ??? ??? ? ?? ????. ??? ??? ???? ??? ????, ???? ?? ????, ?? ???? ??? ??, ??? ??? ???? ?? ?????. ?? ?? ???? ??? ? ???? ????? ???? ? ?? ????? ??? ??? ??? ? ????. ???? ???? ??? ??? ?? ??? ??? ????? ???? ???? ? ??? ???? ????. ????

The strategy of a boundary layer is important in lots of issues in aerodynamics. The viscosity and fluid friction inside the air is approximated as getting major only Within this slender layer. This assumption would make the description of these kinds of aerodynamics way more tractable mathematicall