So, the pressure, this is pressure due to potential flow; there is no viscosity here. So, pressure will drop here and we say that that time that satisfying bernoulli’s principle. If pressure is low, this velocity will be high. It will be more what it would be in the front. In fact, front velocity will be low. So, this will have a slightly higher velocity at the boundary layer itself and then it will reduce to free stream velocity. Is that clear? What will happen here?