div(ρϕu)=Sϕ{"version":"1.1","math":" \textbf{div} (\rho \phi \textbf{u}) = S_\phi "}

∂(ρϕ)∂t+div(ρϕu)=div(Γgradϕ)+Sϕ{"version":"1.1","math":"\frac{\partial (\rho \phi)}{\partial t}+ \textbf{div} (\rho \phi \textbf{u}) = \textbf{div}(\Gamma \textbf{grad} \phi) + S_\phi "}

div(ρϕu)=div(Γgradϕ){"version":"1.1","math":" \textbf{div} (\rho \phi \textbf{u}) = \textbf{div}(\Gamma \textbf{grad} \phi) "}

div(ρϕu)=div(Γgradϕ)+Sϕ{"version":"1.1","math":" \textbf{div} (\rho \phi \textbf{u}) = \textbf{div}(\Gamma \textbf{grad} \phi) + S_\phi "}