Interacting rarefaction waves for the unsteady transonic small disturbance equation

We consider a Riemann problem for the unsteady transonic small disturbance equation that results in two rarefaction waves. We write the problem in self-similar and parabolic coordinates and we obtain a system that changes type from hyperbolic to elliptic. We use the characteristic decomposit...

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Main Authors: Ilija Jegdic, Katarina Jegdic
Format: Article
Language:English
Published: Texas State University 2016-09-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2016/248/abstr.html
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author Ilija Jegdic
Katarina Jegdic
author_facet Ilija Jegdic
Katarina Jegdic
author_sort Ilija Jegdic
collection DOAJ
description We consider a Riemann problem for the unsteady transonic small disturbance equation that results in two rarefaction waves. We write the problem in self-similar and parabolic coordinates and we obtain a system that changes type from hyperbolic to elliptic. We use the characteristic decomposition equations to study the complicated interaction of these two rarefaction waves in the hyperbolic region. We obtain local existence of the solution and we derive various properties of the solution and of the characteristic curves.
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spelling doaj.art-e8e13e703f00472699c35ab0a44ce7952022-12-22T00:54:29ZengTexas State UniversityElectronic Journal of Differential Equations1072-66912016-09-012016248,115Interacting rarefaction waves for the unsteady transonic small disturbance equationIlija Jegdic0Katarina Jegdic1 Texas Southern Univ., Houston, TX, USA Univ. of Houston - Downtown Houston, TX, USA We consider a Riemann problem for the unsteady transonic small disturbance equation that results in two rarefaction waves. We write the problem in self-similar and parabolic coordinates and we obtain a system that changes type from hyperbolic to elliptic. We use the characteristic decomposition equations to study the complicated interaction of these two rarefaction waves in the hyperbolic region. We obtain local existence of the solution and we derive various properties of the solution and of the characteristic curves.http://ejde.math.txstate.edu/Volumes/2016/248/abstr.htmlUnsteady transonic small disturbancemixed type systemrarefaction wavesshocks
spellingShingle Ilija Jegdic
Katarina Jegdic
Interacting rarefaction waves for the unsteady transonic small disturbance equation
Electronic Journal of Differential Equations
Unsteady transonic small disturbance
mixed type system
rarefaction waves
shocks
title Interacting rarefaction waves for the unsteady transonic small disturbance equation
title_full Interacting rarefaction waves for the unsteady transonic small disturbance equation
title_fullStr Interacting rarefaction waves for the unsteady transonic small disturbance equation
title_full_unstemmed Interacting rarefaction waves for the unsteady transonic small disturbance equation
title_short Interacting rarefaction waves for the unsteady transonic small disturbance equation
title_sort interacting rarefaction waves for the unsteady transonic small disturbance equation
topic Unsteady transonic small disturbance
mixed type system
rarefaction waves
shocks
url http://ejde.math.txstate.edu/Volumes/2016/248/abstr.html
work_keys_str_mv AT ilijajegdic interactingrarefactionwavesfortheunsteadytransonicsmalldisturbanceequation
AT katarinajegdic interactingrarefactionwavesfortheunsteadytransonicsmalldisturbanceequation