2011
DOI: 10.3189/172756411797252167
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Estimation of the electrostatic charge of individual blowing-snow particles by wind tunnel experiment

Abstract: There are some reports on the measurement of the charge-to-mass ratio of blowing-snow particles, but there are few studies concerned with individual snow-particle charge. We measured the charge-to-mass ratios using snow particles selected according to size, and discussed individual charges. Experiments were conducted in a cryogenic wind tunnel. Charge-to-mass ratios measured in our experiment were all negative and their absolute values tended to increase with a decrease in particle diameter. Individual snow-pa… Show more

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Cited by 10 publications
(4 citation statements)
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“…negatively and positively charged particles. Note that we expect from measurements that particles are on average negatively charged (Omiya et al, 2011).…”
Section: Effect Of Friction Velocitymentioning
confidence: 99%
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“…negatively and positively charged particles. Note that we expect from measurements that particles are on average negatively charged (Omiya et al, 2011).…”
Section: Effect Of Friction Velocitymentioning
confidence: 99%
“…Based on the facts that the charge carried by particles tends to be saturated during the process of particle-particle and particle-surface collisions (Yu et al, 2017) and the mid-air collision between snow particles is at low probability (Schmidt, 1972;Sommerfeld and Zivkovic, 1992). We therefore assume saturated charges for our particles, and with the values estimated in the wind tunnel experiments (Omiya et al, 2011) which are relatively small limited by the total length of system. E(z) is the electric field at the height of z, which can be calculated as the following empirical formula for moderate drifting snow electric field from Schmidt and Dent (1994):…”
Section: Particle Movement Modelmentioning
confidence: 99%
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