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2.2 The Continuity Equation - PolymerProcessing.com: Information and Education on Polymer Pr
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日期:2026-04-24
Transport Phenomena 11 Rectangular coordinates: ∂ρ ∂t + ∂ ∂x (ρv x)+ ∂ ∂ (ρv y)+ ∂ ∂z (ρv z)=0 Cylindrical coordinates: ∂ρ ∂t + 1 r ∂ ∂r (ρrv r)+ 1 r ∂ ∂θ (ρv θ)+ ∂ ∂z (ρv z)=0 Spherical coordinates: ∂ρ ∂t + 1 r2 ∂ ∂r (ρr2v r)+ 1 rsinθ ∂ ∂θ (ρv θ sinθ)+ 1...看更多

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