newschannelflow: a spectral fluid-flow simulator - News

 
 

0.9.15: New DNS class replaces old NSIntegrator.

Item posted by John F. Gibson <gibson17> on Tue 18 Oct 2005 03:05:59 PM UTC.

Major changes in algorithms and software structure to  time-integration methods. Implemented semi-implicit backwards-differentiation methods of orders 1-4 (SBDF1-SBDF4) and a 2nd-order semi-implicit Runge-Kunta (CNRK2).

Implemented in new DNS class, with a base-, derived-, handle-class hierarchy for different classes of time-stepping algorithms. Had to restructure from former NSIntegrator class in order to accommodate the substantial differences in the time-step update algorithms (i.e. their ::advance functions). See NEWS for more details.

Documentation not yet updated.

John

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