Validation tests for gravity casting simulations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F16%3A43931374" target="_blank" >RIV/49777513:23520/16:43931374 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/49777513:23210/16:43931374

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Validation tests for gravity casting simulations

Popis výsledku v původním jazyce

Within this study, a dedicated experimental test setup which enables execution of well-controlled benchmark tests is designed. These tests are then used for validation of an in-house developed gravity casting computational model. Three benchmark tests are considered, two of them are focused on a gravity flow in a vertical labyrinth and the third one captures the flow in a long horizontal channel. These tests are performed for viscous fluids at standard room temperature. A special attention is paid to propagation of the fluid through the channel and to the free surface shape evolution. Heat transfer as well as solidification are not considered. Physical properties (viscosity, surface tension, density) of the tested fluid are precisely assessed. Viscosity and surface tension are measured for both a fresh unused sample and a sample that was used for gravity casting inside the labyrinth. The recorded data clearly show a sensitivity of the flow propagation on the value of fluid viscosity. In the narrow channels, an influence of surface tension is pronounced. The recorded evolution of the surge front profile and all results of the experimental analysis provide an extensive data set for benchmarking of the in-house developed computational software.

Název v anglickém jazyce

Validation tests for gravity casting simulations

Popis výsledku anglicky

Within this study, a dedicated experimental test setup which enables execution of well-controlled benchmark tests is designed. These tests are then used for validation of an in-house developed gravity casting computational model. Three benchmark tests are considered, two of them are focused on a gravity flow in a vertical labyrinth and the third one captures the flow in a long horizontal channel. These tests are performed for viscous fluids at standard room temperature. A special attention is paid to propagation of the fluid through the channel and to the free surface shape evolution. Heat transfer as well as solidification are not considered. Physical properties (viscosity, surface tension, density) of the tested fluid are precisely assessed. Viscosity and surface tension are measured for both a fresh unused sample and a sample that was used for gravity casting inside the labyrinth. The recorded data clearly show a sensitivity of the flow propagation on the value of fluid viscosity. In the narrow channels, an influence of surface tension is pronounced. The recorded evolution of the surge front profile and all results of the experimental analysis provide an extensive data set for benchmarking of the in-house developed computational software.

Druh

O - Ostatní výsledky

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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