§3大气声波 注意到:+p'a p+ p ) L 0 at ax ax L p+Pp 0 ax c20=0 at ax S CpP=pRT§3 大气声波 ( ) x p x p p p x ∂ ∂ ′ ≅ ∂ ∂ ′ ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛ ′ + ′ = − ∂ ∂ + ′ ρ ρ ρ ρ ρ ρ 1 1 1 1 注意到： 0 0 1 = ∂ ∂ ′ ⎟ ′ + ⎠ ⎞ ⎜ ⎝ ⎛ ∂ ∂ + ∂ ∂ = ∂ ∂ ′ ⎟ ′ + ⎠ ⎞ ⎜ ⎝ ⎛ ∂ ∂ + ∂ ∂ x u p c c p x u t x p u x u t v p ρ 0 2 2 2 2 = ∂ ∂ ′ ⎟ ′ − ⎠ ⎞ ⎜ ⎝ ⎛ ∂ ∂ + ∂ ∂ x p p c x u t s R T c p c c c c c p v p s = = ρ 2