Section: Fluid Mechanics | Type: NAT | Marks: 2
On a flat plate, transition from laminar to turbulent boundary layer occurred at a critical Reynolds number (Recr). The empirical relations for the laminar and turbulent boundary layer thickness are given by 0.5 m 5.48Re la x x δ − = and 0.2 0.37Re turb x x δ − = , respectively. The ratio of laminar to turbulent boundary layer thickness, at the location of transition, is 0.3. The value of Recr is _______.
Answer: 440000 to 442000