Development of a Rotary Wing Navier-Stokes CFD Code Based on TLNS3D Code.

Abstract

This report documents the development of a multi-grid Navier-Stokes code for rotary wing calculations, TLNS3DR. The TLNS3DR is based on the fixed-wing TLNS3D code by adding a rotation term and making necessary modifications on boundary conditions. The TLNS3D code solves the thin-layer Navier-Stokes equations using an explicit multistage Runge-Kutta type of time stepping with multigrid method. The TLNS3DR code re-formulates the TLNS3D code in the rotor blade-fixed moving frame of reference and solves relative motion of fluids. In this report, the formulation of the Navier-Stokes equations in the moving frame of reference in terms of relative velocity is given. Several numerical examples are then presented. The results of rotor blade in hover calculated by the new TLNS3DR code seems quantitatively correct. The computation also shows that this multigrid code is efficient. (AN)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1994
Accession Number
ADA301752

Entities

People

  • Hong Hu

Organizations

  • Hampton University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Computations
  • Equations
  • Flow Fields
  • Fluid Dynamics
  • Fluid Flow
  • Free Stream
  • Layers
  • Mach Number
  • Mathematical Analysis
  • Mathematics
  • Mechanical Properties
  • Navier Stokes Equations
  • Relative Motion

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Fluid Dynamics.