гіпотеза Прандтля
Stokes hypothesis
boundary layer approximation by Prandtl
Prandtl boundary layer
Prandtl boundary layer theorem
Prandtl boundary layer theory
Prandtl mixing length
Prandtl mixing-length theory
Prandtl relation for normal shock waves
Prandtl-Glauert rule
Prandtl-Meyer expansion
Prandtl-Meyer flow