Tuesday, July 1, 2008

More of What We Know

The problem seems to start when the number of segments changes from four hundred and eighty-nine to four hundred ninety, and segment length changes from 186,475 meters to 186,094 meters. Having segments that are over one hundred and eighty six kilometers log are why I want to increase the number of segments in the model.

Running the model with four hundred and eighty-nine segments but a segment length corresponding with four hundred and ninety segments seems to induce the problem. This implies I can't simply re-distribute segments to allocate shorter segments in the high gee regions near the anchor.

The problem occurs in the first twenty or so segments, near the anchor.

The boundary code for when a segment falls below the Earth's radius is never invoked at 489 or 490 segments, so is not the source of the problem.

The boundary code for when elasticity goes negative is never invoked in ribbon dynamics is never invoked.

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