Investigation of pipe flow instability and results for wave number zero
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Authors
Arnold, Michael James
Subjects
Pipe Flow Instability
Advisors
Gawain, T.H.
Date of Issue
1978-12
Date
Publisher
Language
en_US
Abstract
Past research by Harrison and Johnston on the stability
of pipe flow yielded only tenuous results owing to errors in
setup of the problem and in formulation of the complex axis
boundary conditions.
Recent advances in the formulation of these boundary
conditions and application of generalized stability criteria
allowed an accurate numerical solution to be made for angular
wave number zero. The results show that flow for this case
is characterized by certain instabilities that have not been
previously identified in linearized studies of this type.
A nonuniform computational mesh was developed which
provided dramatic reductions in computational time on a
limited basis.
Two data reduction programs were also developed to process
and display data generated by the main program.
Type
Thesis
Description
Series/Report No
Department
Aeronautics
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.