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1. |
Find the second-order accurate finite difference approximation of the first derivative of the velocity component (u) in the x-direction using the Taylor series expansion. (Note: i and j are in the x and y-direction respectively). |
A. | ( frac{u_{i,j+1}-u_{i,j-1}}{ Delta x} ) |
B. | ( frac{u_{i+1,j}-u_{i-1,j}}{ Delta x} ) |
C. | ( frac{u_{i+1,j}-u_{i-1,j}}{2 Delta x} ) |
D. | ( frac{u_{i,j+1}-u_{i,j-1}}{2 Delta x} ) |
Answer» D. ( frac{u_{i,j+1}-u_{i,j-1}}{2 Delta x} ) | |