The central differencing scheme becomes inconsistent when the Peclet number _____________

The central differencing scheme becomes inconsistent when the Peclet number _____________ Correct Answer is higher than 2

When the Peclet number goes beyond 2, the central difference approximation fails. The discretization process becomes inconsistent here. In this case, an increase in the neighbouring value will lead to a decrease in the value at the central node.

Related Questions

The order of accuracy of the central differencing scheme is _____________
The central differencing scheme gives good results when _____________