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[Solution]

“ilures” is a memory allocation which is used by the linear solver during the solution of the discretized algebraic equations, so it can vary from iteration to iteration. ANSYS CFX uses a Multigrid accelerated Incomplete Lower Upper (ILU) factorization technique for solving the discrete system of linearized equations. It is likely that the ILU smoother is running out of memory. This is a fairly uncommon error. The fix is to increase the ilures memory factor as stated in the error message This is an expert parameter, but unavailable from the CFX Pre GUI. The parameter can be entered by editing the Expert parameters and adding it manually – see attachments.

Attachments:
1. Edit_in_command_editor.png
2. enter_parameter_and_value.png