Section: Fluid Mechanics | Marks: 1
The velocity field and the surface normal vector are given by, ˆ ˆ ˆ V ui v j wk = + + and 1 2 3 ˆ ˆ ˆ n n i n j n k = + + , respectively. If Euler equations are to be solved, the boundary condition that must be satisfied at the wall is,
- A. 𝑉⃗ ∙𝑛⃗ = 0
- B. 𝑉⃗ = 0
- C. ∇∙𝑉⃗ = 0
- D. 𝑉⃗ × 𝑛⃗ = 0
Answer: A. 𝑉⃗ ∙𝑛⃗ = 0