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, Giovanni; 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
