Abstract
| Original language | English |
|---|---|
| Article number | 021102 |
| Pages (from-to) | 021102-1 - 021102-5 |
| Number of pages | 5 |
| Journal | Physical review E: covering statistical, nonlinear, biological, and soft matter physics |
| Volume | 97 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 7 Feb 2018 |
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Clogging in constricted suspension flows. / Marin, Alvaro ; Lhuissier, Henri; Rossi, Massimiliano; Kähler, Christian.
In: Physical review E: covering statistical, nonlinear, biological, and soft matter physics, Vol. 97, No. 2, 021102, 07.02.2018, p. 021102-1 - 021102-5.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Clogging in constricted suspension flows
AU - Marin, Alvaro
AU - Lhuissier, Henri
AU - Rossi, Massimiliano
AU - Kähler, Christian
PY - 2018/2/7
Y1 - 2018/2/7
N2 - The flow of a charged-stabilized suspension through a single constricted channel is studied experimentally by tracking the particles individually. Surprisingly, the behavior is found to be qualitatively similar to that of inertial dry granular systems: For small values of the neck-to-particle size ratio (D/d < 3), clogs form randomly as arches of the particle span the constriction. The statistics of the clogging events are Poissonian as reported for granular systems and agree for moderate particle volume fraction (φ ≈ 20%) with a simple stochastic model for the number of particles at the neck. For larger neck sizes (D/d > 3), even at the largest φ (≈ 60%) achievable in the experiments, an uninterrupted particle flowis observed, which resembles that of an hourglass. This particularly small value of D/d ( 3) at the transition to a practically uninterrupted flow is attributed to the low effective friction between the particles, achieved by the particle’s functionalization and lubrication.
AB - The flow of a charged-stabilized suspension through a single constricted channel is studied experimentally by tracking the particles individually. Surprisingly, the behavior is found to be qualitatively similar to that of inertial dry granular systems: For small values of the neck-to-particle size ratio (D/d < 3), clogs form randomly as arches of the particle span the constriction. The statistics of the clogging events are Poissonian as reported for granular systems and agree for moderate particle volume fraction (φ ≈ 20%) with a simple stochastic model for the number of particles at the neck. For larger neck sizes (D/d > 3), even at the largest φ (≈ 60%) achievable in the experiments, an uninterrupted particle flowis observed, which resembles that of an hourglass. This particularly small value of D/d ( 3) at the transition to a practically uninterrupted flow is attributed to the low effective friction between the particles, achieved by the particle’s functionalization and lubrication.
UR - http://www.scopus.com/inward/record.url?scp=85042100181&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.97.021102
DO - 10.1103/PhysRevE.97.021102
M3 - Article
VL - 97
SP - 021102-1 - 021102-5
JO - Physical review E: covering statistical, nonlinear, biological, and soft matter physics
JF - Physical review E: covering statistical, nonlinear, biological, and soft matter physics
SN - 2470-0045
IS - 2
M1 - 021102
ER -