In a two-dimensional velocity field with velocities u and v along the x and y directions respectively, the convective acceleration along the x-direction is given by

• A. \(u\frac{{\partial u}}{{dx}} + v\frac{{\partial u}}{{dy}}\)
• B. \(u\frac{{\partial u}}{{dx}} + v\frac{{\partial v}}{{dy}}\)
• C. \(u\frac{{\partial v}}{{dx}} + v\frac{{\partial u}}{{dy}}\)
• D. \(v\frac{{\partial u}}{{dx}} + u\frac{{\partial u}}{{dy}}\)