Accession Number : ADA329591

Title :   Multiple Scale Reproducing Kernel Methods for Compressible Flow-Structure Systems.

Descriptive Note : Final rept. 1 Apr 95-30 Jun 96,

Corporate Author : NORTHWESTERN UNIV EVANSTON IL DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Liu, Wing Kam

PDF Url : ADA329591

Report Date : JUL 1996

Pagination or Media Count : 106

Abstract : Multiple temporal and spatial scale methods were developed and employed for the study of structural dynamics system in which the response is characterized by multiple-spatial and multiple-time scales. The following fundamental research topics were addressed: (1) development of multiple scale Reproducing Kernel Particle Methods, which can provide accurate mesh free interpolation functions and possess superior convergence rate for compressible flow-structure interaction problems; (2) incorporation of multiresolution analysis concepts into RKPM so that the response can be separated into multiple frequency/wave number bands for a better representation of the computed physics; (3) incorporation of (1) and (2) via a 2D pilot computer code; and (4) application of the multiple-scale computer code to study nonlinear compressible flow and large deformation structural phenomena.

Descriptors :   *KERNEL FUNCTIONS, *COMPRESSIBLE FLOW, *INTEGRAL EQUATIONS, SPATIAL DISTRIBUTION, REACTION KINETICS, STRUCTURAL PROPERTIES, DEFORMATION, NONLINEAR SYSTEMS, PHYSICS, WEAK CONVERGENCE, WAVELET TRANSFORMS.

Subject Categories : Numerical Mathematics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE