Kirchhoff equations

In fluid dynamics, the Kirchhoff equations, named after Gustav Kirchhoff, describe the motion of a rigid body in an ideal fluid.

where $\vec \omega$ and $\vec v$ are the angular and linear velocity vectors at the point $\vec x$ , respectively; $\tilde I$ is the moment of inertia tensor, $m$ is the body's mass; $\hat n$ is a unit normal to the surface of the body at the point $\vec x$ ; $p$ is a pressure at this point; $\vec Q_h$ and $\vec F_h$ are the hydrodynamic torque and force acting on the body, respectively; $\vec Q$ and $\vec F$ likewise denote all other torques and forces acting on the body. The integration is performed over the fluid-exposed portion of the body's surface.

单词	Kirchhoff equations
释义	Kirchhoff equations 英语百科 Kirchhoff equations In fluid dynamics, the Kirchhoff equations, named after Gustav Kirchhoff, describe the motion of a rigid body in an ideal fluid. where $\vec \omega$ and $\vec v$ are the angular and linear velocity vectors at the point $\vec x$ , respectively; $\tilde I$ is the moment of inertia tensor, $m$ is the body's mass; $\hat n$ is a unit normal to the surface of the body at the point $\vec x$ ; $p$ is a pressure at this point; $\vec Q_h$ and $\vec F_h$ are the hydrodynamic torque and force acting on the body, respectively; $\vec Q$ and $\vec F$ likewise denote all other torques and forces acting on the body. The integration is performed over the fluid-exposed portion of the body's surface.
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