|Title:||Experimental validation of numerical simulations of free surface flow within casting mold cavities|
|Citation:||BUBLÍK, O. LOBOVSKÝ, L. HEIDLER, V. MANDYS, T. VIMMR, J. Experimental validation of numerical simulations of free surface flow within casting mold cavities. ENGINEERING COMPUTATIONS, 2021, roč. 38, č. 10, s. 4024-4046. ISSN: 0264-4401|
|Publisher:||Emerald Publishing Limited|
|Keywords in different language:||free surface flow;surface tension;lattice Boltzmann method;volume of fluid;casting|
|Abstract in different language:||The paper targets on providing new experimental data for validation of the well-established mathematical models within the framework of the lattice Boltzmann method (LBM), which are applied to problems of casting processes in complex mould cavities. Design/methodology/approach: An experimental campaign aiming at the free-surface flow within a system of narrow channels is designed and executed under well-controlled laboratory conditions. An in-house lattice Boltzmann solver is implemented. Its algorithm is described in detail and its performance is tested thoroughly using both the newly recorded experimental data and well-known analytical benchmark tests. Findings: The benchmark tests prove the ability of the implemented algorithm to provide a reliable solution when the surface tension effects become dominant. The convergence of the implemented method is assessed. The two new experimentally studied problems are resolved well by simulations using a coarse computational grid. Originality/value: A detailed set of original experimental data for validation of computational schemes for simulations of free-surface gravity-driven flow within a system of narrow channels is presented.|
|Appears in Collections:||Články / Articles (KME)|
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