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Wall-boundary of euler equations using FVM

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Old   July 9, 2014, 04:17
Default Wall-boundary of euler equations using FVM
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Dennis Brauch
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I'm developing on the calculation of the euler equations using the finte volume method. As you may know each cell is calculated by the incoming and outgoing flux. That means I need in a 1D System the flux of the left and the right neighbour cell. But what happens with the left cell, if there should be a physical wall. At the moment I made a loop back from the output by multiplying the velocities by -1 (caused by reflection) and the pressure, energy and density by 1 to the input, which is actually connected to the left cell. But with this configuration my system is not stable and so i guess the wall-boundary is not correct. Does anyone have an idea?
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boundary condition, euler equations, finite volume method, wall boundary condition

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