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FAST PANEL ANALYSIS |
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Fast Panel Methods for Configurational Aerodynamics
Since the early 1990s, CDI has been in the forefront of the development of fast potential flow modeling methods for full
lifting airframes. Notable achievements in this area include formulation and implementation of fast panel methods, capable of analysis of complex
full airframe configurations with tens of thousands of surface panels with dramatically reduced computation time and memory compared to conventional
methods.
Boeing F-18 (40,000 panels)
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Boeing 737 (130,000 panels)
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This modeling has been embedded in the CDI Fast Panel Analysis (FPA) code and is based on the exploitation of fast multipole
analysis methods that reduce the O(N square) operation count dependence of conventional direct solvers to approximately O(NlogN) or O(N). This
corresponds to a one to two order of magnitude reduction in both computation time and memory requirements for typical systems. In addition, a version
of the fast multipole model has also been distilled into a modular form for use in conjunction with NASA's PMARC panel code, yielding a PMARC Express
variant distributed by CDI.
Computation time (left) and memory (right) requirements for the CDI FPA model, using fast multipole solution methods for a typical 35,000 panel lifting body solution.
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