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equations:continuity_equation [2018/04/19 10:11] jakobadmin [Intuitive] |
equations:continuity_equation [2020/03/03 10:38] (current) 128.179.254.165 |
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- | <WRAP lag> $\color{blue}{\frac{\partial \rho}{\partial t}} = \color{red}{\sigma} - \color{magenta}{\rho \vec \nabla \vec v} $</WRAP> | + | <WRAP lag> $\color{blue}{\frac{\partial \rho}{\partial t}} = \color{red}{\sigma} - \color{magenta}{\rho \vec{\nabla} \cdot \vec{v}} $</WRAP> |
====== Continuity Equation ====== | ====== Continuity Equation ====== | ||
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$$ \nabla \cdot J + \frac { \partial ( \nabla \cdot D ) } { \partial t } = 0. | $$ \nabla \cdot J + \frac { \partial ( \nabla \cdot D ) } { \partial t } = 0. | ||
$$ | $$ | ||
- | Finally, we use another [[equations:maxwell_equations|Maxwell equation]], namely [[equations:yang_mills_equations:gauss_law|Gauss law]], | + | Finally, we use another [[equations:maxwell_equations|Maxwell equation]], namely [[formulas:gauss_law|Gauss law]], |
$$\nabla \cdot D = \rho | $$\nabla \cdot D = \rho | ||
$$ | $$ |