Accession Number : ADA313520

Title :   An Evaluation of Computational Algorithms to Interface Between CFD and CSD Methodologies.

Descriptive Note : Final rept. 1 Sep 94-1 Sep 95,

Corporate Author : GEORGIA INST OF TECH ATLANTA SCHOOL OF AEROSPACE ENGINEERING

Personal Author(s) : Smith, Marilyn J. ; Hodges, Dewey H. ; Cesnik, Carlos E.

PDF Url : ADA313520

Report Date : NOV 1995

Pagination or Media Count : 472

Abstract : Methods to transfer information from Computational Fluid Dynamics (CFD) to Computational Structural Dynamics (CSD) and vice versa have been evaluated. The data include geometry deformations, slopes and loads. The methods were evaluated for accuracy, robustness and case of use. Both interpolations and extrapolations were evaluated. Six methods were analyzed: Infinite Plate Splines, Multiquadrics, Thin Plate Splines, Non-Uniform B-Splines, Finite Plate Splines and Inverse Isoparametric Mapping. Of these, the Thin Plate Splines were the most accurate and robust, followed closely by Multiquadrics. The Infinite Plate Spline Method, although widely used, is not recommended.

Descriptors :   *ALGORITHMS, *INFORMATION TRANSFER, *INTERFACES, *COMPUTATIONAL FLUID DYNAMICS, *FIXED WING AIRCRAFT, COMPUTATIONS, DYNAMICS, STRUCTURAL PROPERTIES, DEFORMATION, GRIDS, ACCURACY, AEROELASTICITY, SOLUTIONS(GENERAL), PLATES, GEOMETRY, THINNESS, EXTRAPOLATION, SPLINES.

Subject Categories : Information Science
      Fluid Mechanics
      Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE