Adaptivity Meta Solution dialog box

Name and Description
Name	Lets you specify the name of the adaptivity solution.
Description	Lets you specify a description for the adaptivity solution.
Select Solution
Solution	Specifies the name of the existing solution on which the adaptivity solution process runs.
Specify Mapped Solution	Specifies the name of a mapped solution that is associated with the selected Solution. The software processes the specified mapped solution with the new mesh prior to each iterative solve of the primary solution.Note: In a mapped solution, the software maps the results of one solution onto the model of another solution. For example, you can map the temperature profile from a thermal solution onto a structural analysis model.
Accuracy Parameters
Strain Energy (%)	Applicable to structural solutions or structural steps within Simcenter 3D Multiphysics solutions.Lets you use a percentage of the model’s strain energy as a criterion for determining the accuracy of the mesh. Strain Energy (%) is equal to the model’s total strain energy error/total strain energy * 100. Enter a positive real number between 1 and 100. 5% is a typical value used for Strain Energy (%) in many engineering applications.For more information, see Specifying accuracy parameters for adaptive meshing.
Steady Stress	Applicable to structural solutions or structural steps within Simcenter 3D Multiphysics solutions.Lets you use the model’s stress values as a criterion for determining the accuracy of the mesh.AbsoluteSpecifies the target Steady Stress value as an absolute value. Enter a positive real number. This is a specific, absolute error limit that represents the stress deviation allowed within an element. The software considers the adaptivity solution to be converged when the stress error in every element is less than this absolute value.RelativeSpecifies the target Steady Stress value as to model’s total stress error/total stress * 100. Enter a positive real number between 1 and 100. The software considers the adaptivity solution to be converged when the model’s overall stress error percentage is equal to or less than this value.For more information, see Specifying accuracy parameters for adaptive meshing.
Minimum Stress Norm	Applicable to structural solutions or structural steps within Simcenter 3D Multiphysics solutions and available when Steady Stress is set to Absolute.Lets you specify an optional minimum stress value for the solution. If the elements in a region of the mesh have an absolute stress norm value that is less than the specified Minimum Stress Norm, the software does not refine the mesh in that area.AbsoluteSpecifies the target Minimum Stress Norm value as an absolute value. Enter a positive real number. This is a specific, absolute error limit that represents the lowest stress value allowed within an element.Percentage of Peak StressSpecifies the target Minimum Stress Norm value as a percentage of the model's highest stress error/total stress * 100. Enter a positive real number between 1 and 100.For more information, see Specifying accuracy parameters for adaptive meshing.
Temperature	Applicable to thermal solutions or thermal steps within Simcenter 3D Multiphysics solutions.Lets you use the change in temperature across an element as the criterion for determining the accuracy of the mesh. Specify the amount of temperature change to use as the error criterion.For more information, see Specifying accuracy parameters for adaptive meshing.
Singularity Parameters
Detect Singularities Automatically	Automatically detects and removes singularities during the solution. The software searches for singularities that can occur at geometric locations or at locations where point-based loads or constraints are applied.For more information, see Singularities in adaptive meshing
Radius of Singularity	Lets you specify the size of the radius around a singularity in which the software should not refine the mesh. Specify a size value or click to have the software calculate an appropriate radius/
Mesh Parameters
Maximum Number of Iterations	Specifies the maximum number of mesh refinement iterations that the software can perform to reach a converged solution. Enter a positive integer value between 0 and 10.If you specify 0, the software solves the model and generates results and a node refinement map based on the specified Accuracy Parameters. The software does not remesh the model.
Target Minimum Element Length	Lets you specify the smallest desired edge length for an element during the adaptive refinement process. If an element’s edge in the mesh reaches this minimum size, the software stops the refinement process in that local region. It continues the refinement process in other areas of the mesh where the minimum edge length has not been met.
Maximum Number of Nodes	Lets you specify the maximum number of nodes that the software can generate during the adaptive refinement process. If the node count reaches this limit, the software stops the refinement process.
Maximum Element Refinement Level	Lets you specify the extent of refinement that can occur to an element in each adaptive iteration. For example, if you specify a Maximum Element Refinement Level value of 8.0, the software cannot reduce the element’s size during the refinement process to less than 1/8 of its original size at the beginning of the iteration.
Meshing Method	Controls the remeshing approach that the software uses during the adaptivity process.GlobalAllows the software to modify the entire mesh to achieve the specified accuracy goals. With this option, the software deletes the existing mesh and remeshes the model.LocalRestricts remeshing to the local areas in which the error norms exceed the specified Accuracy Parameters. To maintain the quality of the overall mesh, the software may smooth the mesh on faces that neighbor areas in which the error values exceed the parameters.
Output Parameters
Keep Solver Output Files for All Iterations	Retains copies of all solver files for each iteration. If you select this option, you can later you to view data about the model from each iteration.

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Adaptivity Meta Solution dialog box, Simcenter 3D 2021.1 Series

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