Accession Number:

ADP013668

Title:

Application of High-Order Compact Scheme to Incompressible Turbulent Flow

Descriptive Note:

Conference paper

Corporate Author:

DAVID TAYLOR MODEL BASIN WASHINGTON DC

Personal Author(s):

Report Date:

2001-08-01

Pagination or Media Count:

6.0

Abstract:

In this work, the high-order central compact scheme is introduced to improve the accuracy of the IFLOW solver. The high-order compact filter is used to reduce non-physical oscillations. To achieve the conservation property of the scheme, the compact scheme is combined with the ENO reconstruction method. The numerical flux at the cell interface is approximated by the derivative of its primitive function which can be exactly calculated. At the boundary, ghost points are constructed. The high-order extrapolation is used to obtain values at the ghost points. Instead of using the one-sided compact scheme, the explicit central difference scheme is applied at the boundary. The results from spatial simulations of trailing vortices have shown obvious improvement in accuracy.

Subject Categories:

  • Fluid Mechanics
  • Numerical Mathematics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE