Changes between Version 5 and Version 6 of u/erica/2D_Godunov
- Timestamp:
- 07/29/13 13:22:55 (12 years ago)
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u/erica/2D_Godunov
v5 v6 17 17 [[latex($\vec{u}^n = \{ \vec{u}^n_{i,j} \} ~\forall ~i,~\forall~j$)]] 18 18 19 where u is the vector of primitive variables. To solve the Euler equations for this given initial condition, we split the 2D Euler equations into 2, 1D initial value problems (IVPs). In the x-split direction, we have19 where u is the vector of primitive variables. To solve the Euler equations for this given initial condition, we split the 2D Euler equations into 2, 1D initial value problems (IVPs). In the x-split direction, this becomes 20 20 21 21 [[latex($\frac{\partial }{\partial t} \begin{pmatrix} \rho \\ \rho u \\ E \\ \rho v \end{pmatrix} + \frac{\partial }{\partial x} \begin{pmatrix} \rho u \\ \rho u^2 + p \\ u(E+p) \\ \rho u v \end{pmatrix} = 0$)]] 22 22 23 and in the y-direction we have,23 and in the y-direction this is, 24 24 25 25 [[latex($\frac{\partial }{\partial t} \begin{pmatrix} \rho \\ \rho v \\ E \\ \rho u \end{pmatrix} + \frac{\partial }{\partial y} \begin{pmatrix} \rho v \\ \rho v^2 + p \\ v(E+p) \\ \rho u v \end{pmatrix} = 0$)]]