Fluid-structure numerical solver for axi-symmetric flows with Navier's slip interface condition between the viscoelastic solid and the Navier-Stokes fluid: Effects of deformable solids on the flow characteristics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10493216" target="_blank" >RIV/00216208:11320/24:10493216 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=shzg3L1Nuv" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=shzg3L1Nuv</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijengsci.2024.104088" target="_blank" >10.1016/j.ijengsci.2024.104088</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fluid-structure numerical solver for axi-symmetric flows with Navier's slip interface condition between the viscoelastic solid and the Navier-Stokes fluid: Effects of deformable solids on the flow characteristics

Popis výsledku v původním jazyce

Flows of an incompressible Navier-Stokes fluid are frequently assumed to take place in domains whose boundaries are rigid and that the fluid adheres to them, i.e. there is the &quot;no-slip&quot;on the interface between the rigid solid and the flowing fluid. However, in many interesting problems the walls respond as (visco)-elastic structures and different slipping conditions on the fluid- structure interface seem to be more appropriate. Our main objective is to develop a reliable numerical approach capable of efficiently solving such fluid-structure interaction problems with Navier&apos;s slip interface conditions in three dimensions. We focus on axi-symmetric flow problems; their two-dimensional character allows us to perform systematic testing of the performance of the solver and to study the effects of the (visco)-elasticity of the wall and the value of Navier&apos;s slip -parameter on the properties of the flow including the vorticity, dissipation, pressure drop and wall shear stress. All tests concern steady and time -periodic flows in pipe -like domains with sinuses. It is startling that, in this geometric setting, the effects of (visco)-elasticity of the structure on the flow are minor in comparison to the setting when the walls are rigid.

Název v anglickém jazyce

Fluid-structure numerical solver for axi-symmetric flows with Navier's slip interface condition between the viscoelastic solid and the Navier-Stokes fluid: Effects of deformable solids on the flow characteristics

Popis výsledku anglicky

Flows of an incompressible Navier-Stokes fluid are frequently assumed to take place in domains whose boundaries are rigid and that the fluid adheres to them, i.e. there is the &quot;no-slip&quot;on the interface between the rigid solid and the flowing fluid. However, in many interesting problems the walls respond as (visco)-elastic structures and different slipping conditions on the fluid- structure interface seem to be more appropriate. Our main objective is to develop a reliable numerical approach capable of efficiently solving such fluid-structure interaction problems with Navier&apos;s slip interface conditions in three dimensions. We focus on axi-symmetric flow problems; their two-dimensional character allows us to perform systematic testing of the performance of the solver and to study the effects of the (visco)-elasticity of the wall and the value of Navier&apos;s slip -parameter on the properties of the flow including the vorticity, dissipation, pressure drop and wall shear stress. All tests concern steady and time -periodic flows in pipe -like domains with sinuses. It is startling that, in this geometric setting, the effects of (visco)-elasticity of the structure on the flow are minor in comparison to the setting when the walls are rigid.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10102 - Applied mathematics

Projekt

<a href="/cs/project/GA23-05207S" target="_blank" >GA23-05207S: Vývoj spolehlivých výpočetních metod vhodných pro zkoumání interakcí tekutina/pevná látka zaměřených na řešení důležitých kardiovaskulárních problémů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Engineering Science

ISSN

0020-7225

e-ISSN

1879-2197

Svazek periodika

201

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

19

Strana od-do

104088

Kód UT WoS článku

001249173400001

EID výsledku v databázi Scopus

2-s2.0-85194533482