. . . . . . . . "GB - Spojen\u00E9 kr\u00E1lovstv\u00ED Velk\u00E9 Brit\u00E1nie a Severn\u00EDho Irska" . . "Measurement Accuracy of a Mono-fiber Optical Probe in a Bubbly Flow"@en . "RIV/67985858:_____/10:00343074" . "The measurement accuracy of a mono-fiber optical probe is studied experimentally using isolated bubbles rising freely in a still liquid. The dwell time of the probe tip within the gas phase, which is obtained from both the optical probe signal and high-speed visualization, is compared with the dwell time expected for a non-perturbed bubble. The measurement error results mainly from the intrusive nature of the optical probe, which modifies the behavior of the bubble when it comes into contact with the probe tip. The measured dwell time therefore differs from its ideal value that would be found with an unperturbed bubble. For a wetting liquid, the interaction increases the dwell time if the bubble is pierced near its pole, and shortens it for piercing near the equator. It is shown that the error can be correlated with a modified Weber number, and this correlation is helpful for sensor selection and for uncertainty estimate."@en . "Ve\u010De\u0159, M." . . . . "0301-9322" . "3"^^ . "000278693800002" . "269980" . . "The measurement accuracy of a mono-fiber optical probe is studied experimentally using isolated bubbles rising freely in a still liquid. The dwell time of the probe tip within the gas phase, which is obtained from both the optical probe signal and high-speed visualization, is compared with the dwell time expected for a non-perturbed bubble. The measurement error results mainly from the intrusive nature of the optical probe, which modifies the behavior of the bubble when it comes into contact with the probe tip. The measured dwell time therefore differs from its ideal value that would be found with an unperturbed bubble. For a wetting liquid, the interaction increases the dwell time if the bubble is pierced near its pole, and shortens it for piercing near the equator. It is shown that the error can be correlated with a modified Weber number, and this correlation is helpful for sensor selection and for uncertainty estimate." . "[FC5FA3BF85E8]" . . "Cartellier, A." . "Vejra\u017Eka, Ji\u0159\u00ED" . . "optical probe; bubble-fiber interaction; void fraction"@en . "Measurement Accuracy of a Mono-fiber Optical Probe in a Bubbly Flow" . . "7" . "Orvalho, Sandra Petronilho" . "R\u016F\u017Ei\u010Dka, Marek" . "6"^^ . "P(GA104/07/1110), P(GP104/06/P287), P(IAA200720801), Z(AV0Z40720504)" . . . "International Journal of Multiphase Flow" . "RIV/67985858:_____/10:00343074!RIV11-GA0-67985858" . "16"^^ . "Measurement Accuracy of a Mono-fiber Optical Probe in a Bubbly Flow"@en . "Sechet, Ph." . "Measurement Accuracy of a Mono-fiber Optical Probe in a Bubbly Flow" . . . . "36" .