Consider the following statements pertaining to boundary layer on solid surfaces:
1) The boundary layer separation takes place if the pressure gradient is zero.
2) The condition of boundary layer separation is \({\left( {\frac{{\delta u}}{{\delta y}}} \right)_{y = 0}} = 0\)
3) Boundary layer on a flat plate is laminar if the Reynolds number is less than 5 × 105
Which of the above statements is/are correct?1
1, 2 and 3
2
1 and 2 only
3
2 and 3 only
4
1 and 3 only