流体力学基本方程组.PDF

3. 1 1 1 2 3 2 1 2 3 3 1 2 (a b c) t (x y z) t 3 1 t S I (r t) (t) dI d d (r t) dt dt dt (V V) t (r t) (V) t I V nS t S I V S t S n (r t) d d I (r t) I V nS i i i i dt dt t S 3. 2 Euler S S V S S t V S t S V S 0 (1) t S ( V) 0 t ( V) 0 (2) t 2 d 0 (3) dt d V 0 dt d V 0 (4) d