{"paper":{"title":"Critical shear rate and torque stability condition for a particle resting on a surface in a fluid flow","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.flu-dyn","physics.geo-ph"],"primary_cat":"cond-mat.soft","authors_text":"Arshad Kudrolli, Benjamin Allen, David Scheff","submitted_at":"2016-03-12T15:27:31Z","abstract_excerpt":"We advance a quantitative description of the critical shear rate $\\dot{\\gamma_c}$ needed to dislodge a spherical particle resting on a surface with a model asperity in laminar and turbulent fluid flows. We have built a cone-plane experimental apparatus which enables measurement of $\\dot{\\gamma_c}$ over a wide range of particle Reynolds number $Re_p$ from $10^{-3}$ to $1.5 \\times 10^3$. The condition to dislodge the particle is found to be consistent with the torque balance condition, which { yields a lower $\\dot{\\gamma_c}$ compared with} force balance because of the torque component due to dra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.03932","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}