An interface-aware sub-scale dynamics multi-material cell model for solids with void closure and opening at all speeds

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F20%3A00341587" target="_blank" >RIV/68407700:21340/20:00341587 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.compfluid.2020.104578" target="_blank" >https://doi.org/10.1016/j.compfluid.2020.104578</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.compfluid.2020.104578" target="_blank" >10.1016/j.compfluid.2020.104578</a>

Result language
angličtina
Original language name
An interface-aware sub-scale dynamics multi-material cell model for solids with void closure and opening at all speeds
Original language description
We present a multi-material cell model (closure model) for demanding arbitrary Lagrangian-Eulerian (ALE) simulations of fluids and solids. It is based on the interface-aware sub-scale dynamics (IASSD) approach which utilizes the exact material interface geometry within the computational cell to calculate internal material interactions. Our formulation of the closure model also aims to improve the accuracy in low-speed impact events. Voids are used to represent ambient vacuum and internal free boundaries of the distinct materials. Void regions can close and open at contact surfaces, allowing a transition from contact physics to free motion in vacuum. The coupling of void closure and opening with a new formulation of the IASSD model for solids is tested on several one- and two-dimensional numerical examples, ranging from gas expansion in vacuum to planar and round object impacts at various speeds.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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