Non-stationary compressible flow in ducts with varying cross-section

O. Igra; L. Wang; J. Falcovitz

doi:10.1243/0954410981532405

Non-stationary compressible flow in ducts with varying cross-section

O. Igra, L. Wang, J. Falcovitz

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

A comparative study of the interaction of shock wave or rarefaction wave with a converging duct separating long constant cross-section segments is presented. Quasi-one-dimensional computations are compared with fully two-dimensional computations. It is observed that in some cases the two-dimensional results approach the respective one-dimensional approximations over long times, while in other cases the two-dimensional computed flow is genuinely two-dimensional and cannot be reduced to a one-dimensional equivalent. In the latter cases, significant errors are incurred by analysing the flow using the quasi-onedimensional duct flow approximation.

Original language	English
Pages (from-to)	225-243
Number of pages	19
Journal	Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
Volume	212
Issue number	4
DOIs	https://doi.org/10.1243/0954410981532405
State	Published - 1 Jan 1998

Keywords

One-dimensional duct flow
Rarefaction wave in ducts
Shock wave in ducts
Two-dimensional duct flow

ASJC Scopus subject areas

Aerospace Engineering
Mechanical Engineering

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abstract = "A comparative study of the interaction of shock wave or rarefaction wave with a converging duct separating long constant cross-section segments is presented. Quasi-one-dimensional computations are compared with fully two-dimensional computations. It is observed that in some cases the two-dimensional results approach the respective one-dimensional approximations over long times, while in other cases the two-dimensional computed flow is genuinely two-dimensional and cannot be reduced to a one-dimensional equivalent. In the latter cases, significant errors are incurred by analysing the flow using the quasi-onedimensional duct flow approximation.",

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AU - Igra, O.

AU - Wang, L.

AU - Falcovitz, J.

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Y1 - 1998/1/1

N2 - A comparative study of the interaction of shock wave or rarefaction wave with a converging duct separating long constant cross-section segments is presented. Quasi-one-dimensional computations are compared with fully two-dimensional computations. It is observed that in some cases the two-dimensional results approach the respective one-dimensional approximations over long times, while in other cases the two-dimensional computed flow is genuinely two-dimensional and cannot be reduced to a one-dimensional equivalent. In the latter cases, significant errors are incurred by analysing the flow using the quasi-onedimensional duct flow approximation.

AB - A comparative study of the interaction of shock wave or rarefaction wave with a converging duct separating long constant cross-section segments is presented. Quasi-one-dimensional computations are compared with fully two-dimensional computations. It is observed that in some cases the two-dimensional results approach the respective one-dimensional approximations over long times, while in other cases the two-dimensional computed flow is genuinely two-dimensional and cannot be reduced to a one-dimensional equivalent. In the latter cases, significant errors are incurred by analysing the flow using the quasi-onedimensional duct flow approximation.

KW - One-dimensional duct flow

KW - Rarefaction wave in ducts

KW - Shock wave in ducts

KW - Two-dimensional duct flow

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JO - Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering

JF - Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering

IS - 4

ER -

Non-stationary compressible flow in ducts with varying cross-section

Abstract

Keywords

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