Changes between Version 13 and Version 14 of u/erica/2D_Godunov


Ignore:
Timestamp:
08/07/13 15:08:03 (11 years ago)
Author:
Erica Kaminski
Comment:

Legend:

Unmodified
Added
Removed
Modified
  • u/erica/2D_Godunov

    v13 v14  
    1111Here are some plots of the initial condition. You will see a circle of high density/pressure in the center of the mesh, with zero velocity in both x and y.
    1212
    13 Density:
     13Density (pressure looks similar):
    1414
    1515[[Image(rhoInit3d.png, 25%)]]
    1616
    17 Velocity:
     17X-velocity (velocity in y is also zero):
    1818
    1919[[Image(uInit.png, 25%)]]
     
    2727[[latex($\vec{u}^n = \{ \vec{u}^n_{i,j} \} ~\forall ~i,~\forall~j$)]]
    2828
    29 where u is the vector of primitive variables. To solve the Euler equations for this given initial condition, we split the 2D Euler equations,
     29where u is the vector of primitive variables. To solve the Euler equations for this given initial condition, we "split" the 2D Euler equations,
    3030
    3131[[latex($\frac{\partial }{\partial t} \begin{pmatrix} \rho \\ \rho u \\ E \\ \rho v \end{pmatrix} + \frac{\partial }{\partial x} \begin{pmatrix} \rho u \\ \rho u^2 + p \\ u(E+p) \\ \rho u v \end{pmatrix} + \frac{\partial }{\partial y} \begin{pmatrix} \rho v \\ \rho v^2 + p \\ v(E+p) \\ \rho u v \end{pmatrix} = 0$)]]