Computational Modeling of Marine Propulsors.

Abstract

At the start of this research effort, extensive numerical computations with Navier-Stokes equations for marine propulsors were not routinely conducted anywhere. Now with the advent of much improved computer resources, these computations are carried out regularly to study the complex flow fields, to improve existing designs, and to guide new designs. Looking ahead, computational modeling of marine propulsors has turned a new page. More efficient, more reliable and more robust N-S solvers with more physical submodels are needed for a CFD approach to be fully integrated into routine design procedures. Time-accurate N-S computations are needed to predict acoustic noises in a marine propulsion system. Furthermore more advanced turbulence modeling, such as LES, needs to be included in these computations. Nevertheless, computational modeling of marine propulsors has already started to bear fruits for a better and more economical propulsor design.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1997
Accession Number
ADA322768

Entities

People

  • Charles L. Merkle
  • Jinzhang Feng

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Blade Tips
  • Computational Fluid Dynamics
  • Computational Modeling
  • Computations
  • Equations
  • Equations Of Motion
  • Euler Equations
  • Flow
  • Flow Fields
  • Geometry
  • Marine Propulsion
  • Measurement
  • Mechanical Engineering
  • Navier Stokes Equations
  • Pressure Distribution
  • Propulsion Systems
  • Trailing Edges

Readers

  • Aerodynamics.
  • Computational Fluid Dynamics (CFD)
  • Educational Psychology