WFRF:(Redaelli R.)
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 02443naa a2200397 4500 | |
| 001 | oai:gup.ub.gu.se/332780 | |
| 003 | SwePub | |
| 008 | 240528s2023 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://gup.ub.gu.se/publication/3327802 URI |
| 024 | 7 | a https://doi.org/10.1017/jfm.2023.6502 DOI |
| 040 | a (SwePub)gu | |
| 041 | a eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Redaelli, T.4 aut |
| 245 | 1 0 | a Hydrodynamic force on a small squirmer moving with a time-dependent velocity at small Reynolds numbers |
| 264 | 1 | c 2023 |
| 520 | a We calculate the hydrodynamic force on a small spherical, unsteady squirmer moving with a time-dependent velocity in a fluid at rest, taking into account convective and unsteady fluid inertia effects in perturbation theory. Our results generalise those of Lovalenti & Brady (J. Fluid Mech., vol. 256, 1993, pp. 561-605) from passive to active spherical particles. We find that convective inertia changes the history contribution to the hydrodynamic force, as it does for passive particles. We determine how the hydrodynamic force depends on the swimming gait of the unsteady squirmer. Since swimming breaks the spherical symmetry of the problem, the force is not determined completely by the outer solution of the asymptotic matching problem, as it is for passive spheres. There are additional contributions due to the inhomogeneous solution of the inner problem. We also compute the disturbance flow, illustrating convective and unsteady effects when the particle experiences a sudden start followed by a sudden stop. | |
| 650 | 7 | a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng |
| 653 | a micro-organism dynamics | |
| 653 | a sphere | |
| 653 | a flow | |
| 653 | a motion | |
| 653 | a lift | |
| 653 | a Mechanics | |
| 653 | a Physics | |
| 700 | 1 | a Candelier, F.4 aut |
| 700 | 1 | a Mehaddi, R.4 aut |
| 700 | 1 | a Eloy, C.4 aut |
| 700 | 1 | a Mehlig, Bernhard,d 1964u Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)4 aut0 (Swepub:gu)xmehbe |
| 710 | 2 | a Göteborgs universitetb Institutionen för fysik (GU)4 org |
| 773 | 0 | t Journal of Fluid Mechanicsg 973q 973x 0022-1120 |
| 856 | 4 8 | u https://gup.ub.gu.se/publication/332780 |
| 856 | 4 8 | u https://doi.org/10.1017/jfm.2023.650 |
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