A hybrid (ablation-expansion) model for low-density foams

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F22%3A00361629" target="_blank" >RIV/68407700:21340/22:00361629 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
A hybrid (ablation-expansion) model for low-density foams
Original language description
Laser-foam interaction is described by a standard set of macroscale hydrodynamic equations coupled with a microscopic model accounting for the laser absorption in the solid foam elements and the subsequent foam homogenization. In the microscale model, each foam pore is divided into a cylindrical foam element and a low-density ablated plasma background. The movement of the cylinder boundary is controlled by the self-similar expansion while the mass transfer to plasma region is given by a stationary ablation model. Ordinary differential equations for the temporal advancement of the state variables are solved on the microscale and connected to the macroscale hydrodynamics using the conservation of mass and energy. The cross-section for laser deposition and scattering is calculated according to the Mie theory of electromagnetic scattering on cylindrical particles of sub-wavelength size.
Czech name
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Czech description
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Project
<a href="/en/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Center for advanced applied science</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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