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@ -165,6 +165,14 @@ Flächenintegral der Divergenz von $v$ = Fluss von $v$ durch Rand $C$
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$$\iint_A \mathrm{rot} \, v \, dA = \iint_A \zeta \, dA = \oint_C \, v \, ds$$
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Flächenintegral der Rotation von $v$ = Linienintegral von $v$ entlang $C$ (Zirkulation)
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\vspace{5px}
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\textbf{Bsp} \\
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Für eine Vorticity-Dsik mit $\zeta = \zeta_0$, $r=2R$ soll $u_\varphi$ bei $r=4R$ berechnet werden. \\
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Der Satz von Stokes lifert:
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$$\zeta_0 \cdot (2R)^2 \pi = \int_0^{2\pi}u_\varphi \cdot 4R \cdot d\varphi$$
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nach $u_\varphi$ auflösen: $u_\varphi = \frac{1}{2} \zeta_0 R$
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\section{Taylor-Reihe}
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An der stelle $a$ einer Funtkion $f(x)$
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$$f(a) + \frac{f'(a)}{1!}(x-a) + \frac{f''(a)}{2!}(x-a)^2 + \frac{f'''(a)}{3!}(x-a)^3 + ...$$
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@ -172,7 +180,8 @@ $$f(a) + \frac{f'(a)}{1!}(x-a) + \frac{f''(a)}{2!}(x-a)^2 + \frac{f'''(a)}{3!}(x
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\section{Operators}
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$$\mathrm{div} \, \vec{u} = \frac{\partial u}{\partial x} + \frac{\partial v}{\partial y}$$
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$$\mathrm{rot} \, \vec{u} = \nabla \times \vec{u} = -\frac{\partial u}{\partial y} + \frac{\partial v}{\partial x}$$
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$$\mathrm{rot} \, \vec{u_{xy}} = \nabla \times \vec{u} = (\frac{\partial v}{\partial x} - \frac{\partial u}{\partial y})$$
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$$\mathrm{rot} \, \vec{u_{xyz}} = \nabla \times \vec{u} = (\frac{\partial w}{\partial y}-\frac{\partial v}{\partial z}, \frac{\partial u}{\partial z} - \frac{\partial w}{\partial x}, \frac{\partial v}{\partial x} - \frac{\partial u}{\partial y})$$
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$$\nabla = \begin{pmatrix}
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\frac{\partial}{\partial x},
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@ -187,8 +196,8 @@ $$\nabla = \begin{pmatrix}
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\doclicenseImage \\
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Dieses Dokument ist unter (CC BY-SA 3.0) freigegeben \\
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\faGlobeEurope \kern 1em \url{https://n.ethz.ch/~jannisp} \\
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\faGit \kern 0.88em \url{https://git.thisfro.ch/thisfro/wettersysteme-zf} \\
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Jannis Portmann, HS20
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\faGit \kern 0.88em \url{https://git.thisfro.ch/thisfro/mathematik-v-zf} \\
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Jannis Portmann, FS21
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\section{Referenzen}
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\begin{enumerate}
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