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.

Convective forces in high precision mass measurements / Mana G; Palmisano C; Perosino A; Pettorruso S; Peuto A; Zosi G. - In: MEASUREMENT SCIENCE & TECHNOLOGY. - ISSN 0957-0233. - 13:1(2002), pp. 13-20. [10.1088/0957-0233/13/1/302]

Convective forces in high precision mass measurements

MANA, GIOVANNI;
2002

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.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11696/33192
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