Existence of strong solutions for a system of interaction between a compressible viscous fluid and a wave equation
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985840%3A_____%2F21%3A00542434" target="_blank" >RIV/67985840:_____/21:00542434 - isvavai.cz</a>
Výsledek na webu
<a href="https://doi.org/10.1088/1361-6544/abe696" target="_blank" >https://doi.org/10.1088/1361-6544/abe696</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1361-6544/abe696" target="_blank" >10.1088/1361-6544/abe696</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Existence of strong solutions for a system of interaction between a compressible viscous fluid and a wave equation
Popis výsledku v původním jazyce
In this article, we consider a fluid-structure interaction system where the fluid is viscous and compressible and where the structure is a part of the boundary of the fluid domain and is deformable. The fluid is governed by the barotropic compressible Navier-Stokes system, whereas the structure displacement is described by a wave equation. We show that the corresponding coupled system admits a unique, strong solution for an initial fluid density and an initial fluid velocity in H3 and for an initial deformation and an initial deformation velocity in H4 and H3 respectively. The reference configuration for the fluid domain is a rectangular cuboid with the elastic structure being the top face.We use a modified Lagrangian change of variables to transform the moving fluid domain into the rectangular cuboid and then analyze the corresponding linear system coupling a transport equation (for the density), a heat-type equation, and a wave equation. The corresponding results for this linear system and estimations of the coefficients coming from the change of variables allow us to perform a fixed point argument and to prove the existence and uniqueness of strong solutions for the nonlinear system, locally in time.
Název v anglickém jazyce
Existence of strong solutions for a system of interaction between a compressible viscous fluid and a wave equation
Popis výsledku anglicky
In this article, we consider a fluid-structure interaction system where the fluid is viscous and compressible and where the structure is a part of the boundary of the fluid domain and is deformable. The fluid is governed by the barotropic compressible Navier-Stokes system, whereas the structure displacement is described by a wave equation. We show that the corresponding coupled system admits a unique, strong solution for an initial fluid density and an initial fluid velocity in H3 and for an initial deformation and an initial deformation velocity in H4 and H3 respectively. The reference configuration for the fluid domain is a rectangular cuboid with the elastic structure being the top face.We use a modified Lagrangian change of variables to transform the moving fluid domain into the rectangular cuboid and then analyze the corresponding linear system coupling a transport equation (for the density), a heat-type equation, and a wave equation. The corresponding results for this linear system and estimations of the coefficients coming from the change of variables allow us to perform a fixed point argument and to prove the existence and uniqueness of strong solutions for the nonlinear system, locally in time.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10101 - Pure mathematics
Návaznosti výsledku
Projekt
<a href="/cs/project/GA19-04243S" target="_blank" >GA19-04243S: Parciální diferenciální rovnice v mechanice a termodynamice tekutin</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Nonlinearity
ISSN
0951-7715
e-ISSN
1361-6544
Svazek periodika
34
Číslo periodika v rámci svazku
4
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
29
Strana od-do
2659-2687
Kód UT WoS článku
000672932700001
EID výsledku v databázi Scopus
2-s2.0-85105086128