Motion of micron-size particles in turbulent helium II
The surprising result of a recent experiment in turbulent helium II is that micron-size tracer particles move with about half the speed of the imposed normal fluid. We develop a theory of the interaction of small spheres with quantized vortices and predict that the particles' slip velocity (res...
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| Veröffentlicht in: | Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2006-11, Vol.74 (18), Article 184506 |
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| container_title | Physical review. B, Condensed matter and materials physics |
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| creator | Sergeev, Y. A. Barenghi, C. F. Kivotides, D. |
| description | The surprising result of a recent experiment in turbulent helium II is that micron-size tracer particles move with about half the speed of the imposed normal fluid. We develop a theory of the interaction of small spheres with quantized vortices and predict that the particles' slip velocity (resulting from the balance of buoyancy and Stokes drag forces) must be corrected by an amount which is proportional to the normal fluid velocity, in quantitative agreement with the observations. |
| doi_str_mv | 10.1103/PhysRevB.74.184506 |
| format | Article |
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We develop a theory of the interaction of small spheres with quantized vortices and predict that the particles' slip velocity (resulting from the balance of buoyancy and Stokes drag forces) must be corrected by an amount which is proportional to the normal fluid velocity, in quantitative agreement with the observations.</abstract><cop>United States</cop><doi>10.1103/PhysRevB.74.184506</doi></addata></record> |
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| identifier | ISSN: 1098-0121 |
| ispartof | Physical review. B, Condensed matter and materials physics, 2006-11, Vol.74 (18), Article 184506 |
| issn | 1098-0121 1550-235X |
| language | eng |
| recordid | cdi_osti_scitechconnect_20853877 |
| source | American Physical Society Journals |
| subjects | CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY HELIUM II PARTICLE SIZE PARTICLES SLIP VELOCITY SUPERFLUIDITY TURBULENCE TWO-PHASE FLOW VORTICES |
| title | Motion of micron-size particles in turbulent helium II |
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