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EnglishThis paper deals with a numerical simulation of the natural convection air flow and its influence on apparent mass in high precision mass measurements. Results are in reasonable agreement with the experimental values obtained on a 1 kg silicon sphere and a 1 kg mass standard. There is clear evidence that the three-dimensional finite element model studied, allowing inclusions of the boundary and initial conditions determined experimentally, captures the most important features of convection and estimates the relevant corrections.
http://hdl.handle.net/11696/33192| Titolo: | Convective forces in high precision mass measurements |
| Autori interni: | MANA, GIOVANNI |
| Data di pubblicazione: | 2002 |
| Rivista: | MEASUREMENT SCIENCE & TECHNOLOGY |
| Abstract: | This paper deals with a numerical simulation of the natural convection air flow and its influence on apparent mass in high precision mass measurements. Results are in reasonable agreement with the experimental values obtained on a 1 kg silicon sphere and a 1 kg mass standard. There is clear evidence that the three-dimensional finite element model studied, allowing inclusions of the boundary and initial conditions determined experimentally, captures the most important features of convection and estimates the relevant corrections. |
| Handle: | http://hdl.handle.net/11696/33192 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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