Particle-Based Numerical Offshore Tank

Abstract

This study is focused on two critical issues of the flexible but compute-intensive particle-based CFD methods. Based on the particle-level momentum conservation, new source terms were derived for pressure Poisson equation. Besides the suppression of spurious pressure oscillations, the proposed approach is computationally efficient, consistent in time domain, has easily calibratable numerical parameter and simple implementation. Also, a new multiresolution technique based on border mapping" was proposed to reduce the computational cost. Despite the overheads due to multiresolution processing and asymmetrical linear system, its feasibility and speed up capability were confirmed.

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Document Details

Document Type
Technical Report
Publication Date
Aug 24, 2018
Accession Number
AD1069202

Entities

People

  • Cheng L. Yee

Organizations

  • Fundação de Apoio à Universidade de São Paulo

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Algorithms
  • Computational Fluid Dynamics
  • Computational Science
  • Computations
  • Equations
  • Fluid Dynamics
  • High Resolution
  • Linear Systems
  • Low Resolution
  • Momentum
  • Naval Architecture
  • Numerical Analysis
  • Offshore
  • Particles
  • Physical Properties
  • Poisson Equation
  • Time Domain

Readers

  • Computational Fluid Dynamics (CFD)
  • Image Processing and Computer Vision.
  • Parallel and Distributed Computing.