Parallel Computations in Hydro Acoustics
Abstract
This research concerns the algorithmic development, computer implementation and direct numerical simulation of incompressible and compressible flow of naval relevance. Calculations were executed on a class of current generation multiprocessors. Pseudospectral methods were used exclusively. Lack of parallel algorithms critical to the effective implementation of spectral methods on parallel computers necessitated the need for the development of parallel FFT algorithms for real, conjugate symmetric and real symmetric sequences. These algorithms are applied to spectral methods, but also in many areas of scientific computing. The last algorithm, the parallel fast discrete cosine transform, is used extensively in image and signal processing. The parallel Fourier pseudospectral method for the incompressible Navier-Stokes equations was developed and implemented on many multiprocessors. Reconnection of orthogonally interacting vortex tubes was then investigated using the algorithm on parallel computers as well as vector supercomputers. The parallel Fourier pseudospectral method for the compressible Navier-Stokes equations was also developed. Shock / vortex interactions in two dimensions were investigated.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 25, 1994
- Accession Number
- ADA285900
Entities
People
- Richard B. Pelz
Organizations
- Rutgers University Department of Mechanical and Aerospace Engineering