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what is the mean of laplacian(2*mu + lambda, U, "laplacian(DU,U)") |
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February 6, 2012, 17:39
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what is the mean of laplacian(2*mu + lambda, U, "laplacian(DU,U)")
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#1 |
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Senior Member
Join Date: Jun 2011
Posts: 163
Rep Power: 15  |
Dear Foamer
in stressedFoam or solidDisplacementFoam solvers there is the fvm::laplacian(2*mu + lambda, U, "laplacian(DU,U)") term what is the mean of "laplacian(DU,U)" in the above term also what is the mean of "div(sigma)" in the bellow term fvc::div ( mu*gradU.T() + lambda*(I*tr(gradU)) - (mu + lambda)*gradU, "div(sigma)" ) best regards |
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February 6, 2012, 18:18
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#2 |
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Super Moderator
Philip Cardiff
Join Date: Mar 2009
Location: Dublin, Ireland
Posts: 1,097
Rep Power: 34 |
Hi,
laplacian(DU,U) and div(sigma) are just keywords, so when OpenFOAM calculates the laplacian/divergence terms it will look up what laplacian/divergence method to use in system/fvSchemes beside the given keyword. Philip |
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February 7, 2012, 02:13
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Dear Philip Cardiff
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#3 |
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Senior Member
Join Date: Jun 2011
Posts: 163
Rep Power: 15 |
thanks so much
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