Second-order far field computational boundary conditions for inviscid duct flow problems
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Authors
Verhoff, August
Subjects
Computational Boundary Conditions
Internal Flow Computations
Euler Methods
Internal Flow Computations
Euler Methods
Advisors
Date of Issue
1990-03
Date
1990-03
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
Highly accurate far field computational boundary conditions for inviscid, two-dimensional isentropic duct flow problems are developed from analytic solutions of the linearized, second-order Euler equations. The Euler equations are linearized about a constant pressure, rectilinear flow condition. The boundary procedure can be used with any numerical Euler solution method and allows computational boundaries to be located extremely close to the nonlinear region of interest. Numerical results are presented which show that the boundary conditions and far field analytic solutions provide a smooth transition across a computational boundary to the true far field conditions at infinity. The cost of upgrading first-order boundary conditions to second-order is slight
Type
Technical Report
Description
Series/Report No
Department
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
NPS-67-90-001CR
Sponsors
Naval Postgraduate School, Monterey, CA.
Funder
N62271-85-M-0462
Format
Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.