Computing the new mesh in Lagrangian co-ordinates
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I use the amount of mass as my "length" co-ordinate, and as such I have this magical property that the mass in the cell is constant for all time. I compute the density at each time-step, and mass=density*length, to find the new length, you just need to compute length=mass of cell/new density.
I don't have a hyperbolic system, so I don't have characteristics to compute with. |
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Deformation will be high to have a stable computation. I don’use lagariangian grid for several issues. |
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Are you referring to ALE at all? |
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However, have a look to my references here https://www.researchgate.net/publica...ructured_grids |
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