Changes between Version 5 and Version 6 of ControllingRefinement


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Timestamp:
09/15/11 08:44:30 (13 years ago)
Author:
ehansen
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  • ControllingRefinement

    v5 v6  
    117117and marks cell {{{i+1}}} and cell {{{i}}} for refinement.  This is essentially [[latex($\Delta x \frac{\partial log(q)}{\partial x}$)]].  The [[latex($\Delta x$)]] is for the current grid resolution and results in coarser levels being more sensitive to fluid gradients for a given tolerance.  The values of tol is found by multiplying the qTolerance for the level with the refineVariableFactor for the fluid variable and MinScale is dependent on which field you are considering.
    118118
    119 === Changing qTolerance and DesiredFillRatios ===
    120 The most direct and quickest way to change refinement is to change the {{{qTolerance}}} and {{{DesiredFillRatios}}} arrays which are both located in the {{{global.data}}} file.  Each element of these arrays is specific to that level. For example, the first element is for the root level, the next element is for the 1st level of refinement, and so on. {{{qTolerance}}} effectively sets how large a gradient must be in order for those two cells to be refined.  Higher {{{qTolerance}}} --> less refinement.
     119=== Changing qTolerance and !DesiredFillRatios ===
     120The most direct and quickest way to change refinement is to change the {{{qTolerance}}} and !{{{DesiredFillRatios}}} arrays which are both located in the {{{global.data}}} file.  Each element of these arrays is specific to that level. For example, the first element is for the root level, the next element is for the 1st level of refinement, and so on. {{{qTolerance}}} effectively sets how large a gradient must be in order for those two cells to be refined.  Higher {{{qTolerance}}} --> less refinement.
     121
     122|| {{{qTolerance}}} || !{{{DesiredFillRatios}}} || Mesh             ||
     123|| (0.2, 0.2)       || (0.7, 0.7)               || [[Image(mesh1)]] ||
    121124
    122125== Jeans Criteria ==