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dc.contributor.authorDe Lillo, Filippo
dc.contributor.authorCencini, Massimo
dc.contributor.authorDurham, William M.
dc.contributor.authorBarry, Michael
dc.contributor.authorStocker, Roman
dc.contributor.authorCliment, Eric
dc.contributor.authorBoffetta, Guido
dc.date.accessioned2014-06-12T18:33:11Z
dc.date.available2014-06-12T18:33:11Z
dc.date.issued2014-01
dc.date.submitted2013-10
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.urihttp://hdl.handle.net/1721.1/87752
dc.description.abstractThe motility of microorganisms is often biased by gradients in physical and chemical properties of their environment, with myriad implications on their ecology. Here we show that fluid acceleration reorients gyrotactic plankton, triggering small-scale clustering. We experimentally demonstrate this phenomenon by studying the distribution of the phytoplankton Chlamydomonas augustae within a rotating tank and find it to be in good agreement with a new, generalized model of gyrotaxis. When this model is implemented in a direct numerical simulation of turbulent flow, we find that fluid acceleration generates multifractal plankton clustering, with faster and more stable cells producing stronger clustering. By producing accumulations in high-vorticity regions, this process is fundamentally different from clustering by gravitational acceleration, expanding the range of mechanisms by which turbulent flows can impact the spatial distribution of active suspensions.en_US
dc.description.sponsorshipMIT International Science and Technology Initiativesen_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant OCE-0744641-CAREER)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant CBET-1066566)en_US
dc.language.isoen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevLett.112.044502en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAmerican Physical Societyen_US
dc.titleTurbulent Fluid Acceleration Generates Clusters of Gyrotactic Microorganismsen_US
dc.typeArticleen_US
dc.identifier.citationDe Lillo, Filippo, Massimo Cencini, William M. Durham, Michael Barry, Roman Stocker, Eric Climent, and Guido Boffetta. “Turbulent Fluid Acceleration Generates Clusters of Gyrotactic Microorganisms.” Physical Review Letters 112, no. 4 (January 2014). © 2014 American Physical Societyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Civil and Environmental Engineeringen_US
dc.contributor.departmentParsons Laboratory for Environmental Science and Engineering (Massachusetts Institute of Technology)en_US
dc.contributor.mitauthorBarry, Michaelen_US
dc.contributor.mitauthorStocker, Romanen_US
dc.relation.journalPhysical Review Lettersen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsDe Lillo, Filippo; Cencini, Massimo; Durham, William M.; Barry, Michael; Stocker, Roman; Climent, Eric; Boffetta, Guidoen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-3199-0508
mit.licensePUBLISHER_POLICYen_US


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