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user21
user21
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This is not an answer but a tip how to change the implicit solver:

"TimeIntegration" -> {"IDA",(*"MaxDifferenceOrder"->2,*)
  "ImplicitSolver" -> {"Newton", "LinearSolveMethod" -> "Pardiso"}}

Sometimes this is useful when you get a message that a matrix is singular. In version 13 this will be the default. Unfortunately, this does not solve problem at had;hand; I suspect that the PDE model is not quite correct but I can not prove it.

This is not an answer but a tip how to change the implicit solver:

"TimeIntegration" -> {"IDA",(*"MaxDifferenceOrder"->2,*)
  "ImplicitSolver" -> {"Newton", "LinearSolveMethod" -> "Pardiso"}}

Sometimes this is useful when you get a message that a matrix is singular. In version 13 this will be the default. Unfortunately, this does not solve problem at had; I suspect that the PDE model is not quite correct but I can not prove it.

This is not an answer but a tip how to change the implicit solver:

"TimeIntegration" -> {"IDA",(*"MaxDifferenceOrder"->2,*)
  "ImplicitSolver" -> {"Newton", "LinearSolveMethod" -> "Pardiso"}}

Sometimes this is useful when you get a message that a matrix is singular. In version 13 this will be the default. Unfortunately, this does not solve problem at hand; I suspect that the PDE model is not quite correct but I can not prove it.

Source Link
user21
user21
  • 40.7k
  • 8
  • 114
  • 170

This is not an answer but a tip how to change the implicit solver:

"TimeIntegration" -> {"IDA",(*"MaxDifferenceOrder"->2,*)
  "ImplicitSolver" -> {"Newton", "LinearSolveMethod" -> "Pardiso"}}

Sometimes this is useful when you get a message that a matrix is singular. In version 13 this will be the default. Unfortunately, this does not solve problem at had; I suspect that the PDE model is not quite correct but I can not prove it.