Ben Brelje

ZipperMesh silent failure in one-cell-wide 2D overset problems

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## Description For overset cases with overlapping surface meshes (such as combined internal/external flow problems where an integration zone is required), the zipper mesh routine can fail to produce a...

Trim drag example doesn't do what it says

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## Description The drag_polar.py example purports to have a trim drag option that can be toggled. However, it uses the OM BalanceComp to achieve this, but it doesn't have a...

MathJax streamblock widget initially works, then doesn't

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Hey there, great work on this plugin! It worked great as I edited and published my first test post using equations and the MathJax streamblock widget. Unfortunately, after I saved...

## Description LocationConstraints1D returns NaN when polyline point values are zero and scaled=True For example, ### Steps to reproduce issue _Please provide a minimum working example (MWE) if possible_ Run...

DVGeometryVSP parallel finite difference has stochastic error on Ubuntu builds

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## Description DVGeometryVSP parallel finite diff derivatives should have zero error compared to doing the same finite differences in serial. However, due to a bug in VSP, some processor's VSP...

## Description The planarity constraint class is added using a pre-defined DVGeo pointset. However, at the time the constraint is created, an exact duplicate pointset is added to DVGeo creating...

DVGeometry allows ref axis to be added after a finalize is called

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## Description DVGeometry will allow the user to addRefAxis() following a finalize call without raising an error or warning. Instead, an obscure error is raised, e.g. ``` Traceback (most recent...

Colinearity and PlanarityConstraint derivatives incorrect for exactly zero input values

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## Description The way the Colinearity and PlanarityConstraints compute derivatives causes incorrect / spurious nonzero derivative values to appear if inputs (e.g. points, axes) contain true zero values. The problem...

DVConstraints evalFunctions inconsistent passing of references + values

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## Description When evalFunctions and evalFunctionsSens is called for each type of constraint, one of two things happens. Either a fresh set of values is returned back to the dict()...