Nonreflective boundary conditions for high-order methodsA different approach to nonreflective boundary conditions for the Euler equations is presented. This work is motivated by a need for in and outflow boundary conditions that do not limit the useful accuracy of high-order accurate methods. The primary interest is in the propagation and convection of continuous acoustic and convective waves. This new approach employs the exact solution to finite waves to relate interior values and ambient conditions to boundary values. The method is first presented in one dimension and then generalized to multidimensions. Grid refinement studies are used to demonstrate high-order convergence for both one-dimensional and two-dimensional flows.
Document ID
19930037104
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Atkins, H. L. (NASA Langley Research Center Hampton, VA, United States)
Casper, Jay (Vigyan, Inc. Hampton, VA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
AIAA PAPER 93-0152
Meeting Information
Meeting: AIAA, Aerospace Sciences Meeting and Exhibit