Publikation: Influence of gravity on a granular Maxwell's demon experiment
Dateien
Datum
Autor:innen
Herausgeber:innen
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
URI (zitierfähiger Link)
DOI (zitierfähiger Link)
Internationale Patentnummer
Link zur Lizenz
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Core Facility der Universität Konstanz
Titel in einer weiteren Sprache
Publikationstyp
Publikationsstatus
Erschienen in
Zusammenfassung
In the usual description of the granular Maxwell s demon experiment, where phase separation occurs due to an instability in the densities, the control parameter scales linearly with gravity. In this paper we investigate this scaling experimentally using the properties of diamagnetic particles in strong magnetic-field gradients to reduce and even balance gravitation. We find that phase separation occurs even at vanishingly small gravitational accelerations as is predicted by other theories. This is due to the fact that granular samples tend to form clusters as a result of the inelasticity of the particle collisions. Combining the heat balance of the driven granular gas with the cooling rate and thus the appearance of clustering, we are able to describe the crossover between the limiting cases.
Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
Schlagwörter
Konferenz
Rezension
Zitieren
ISO 690
ISERT, Nathan, Corinna C. MAASS, Christof M. AEGERTER, 2009. Influence of gravity on a granular Maxwell's demon experiment. In: European Physical Journal / E. 2009, 28(2), pp. 205-210. Available under: doi: 10.1140/epje/i2008-10403-7BibTex
@article{Isert2009Influ-9168, year={2009}, doi={10.1140/epje/i2008-10403-7}, title={Influence of gravity on a granular Maxwell's demon experiment}, number={2}, volume={28}, journal={European Physical Journal / E}, pages={205--210}, author={Isert, Nathan and Maaß, Corinna C. and Aegerter, Christof M.} }
RDF
<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/9168"> <dc:contributor>Aegerter, Christof M.</dc:contributor> <dc:format>application/pdf</dc:format> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/52"/> <dc:creator>Aegerter, Christof M.</dc:creator> <dc:creator>Maaß, Corinna C.</dc:creator> <dcterms:bibliographicCitation>First publ. in: European Physical Journal / E 28 (2009), 2, pp. 205-210</dcterms:bibliographicCitation> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:contributor>Isert, Nathan</dc:contributor> <dcterms:title>Influence of gravity on a granular Maxwell's demon experiment</dcterms:title> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/> <dcterms:abstract xml:lang="eng">In the usual description of the granular Maxwell s demon experiment, where phase separation occurs due to an instability in the densities, the control parameter scales linearly with gravity. In this paper we investigate this scaling experimentally using the properties of diamagnetic particles in strong magnetic-field gradients to reduce and even balance gravitation. We find that phase separation occurs even at vanishingly small gravitational accelerations as is predicted by other theories. This is due to the fact that granular samples tend to form clusters as a result of the inelasticity of the particle collisions. Combining the heat balance of the driven granular gas with the cooling rate and thus the appearance of clustering, we are able to describe the crossover between the limiting cases.</dcterms:abstract> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/9168"/> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9168/1/2009_Isert_Influence_of_gravity.pdf"/> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/52"/> <dcterms:issued>2009</dcterms:issued> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:54:12Z</dc:date> <dc:rights>terms-of-use</dc:rights> <dc:language>eng</dc:language> <dc:creator>Isert, Nathan</dc:creator> <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9168/1/2009_Isert_Influence_of_gravity.pdf"/> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:54:12Z</dcterms:available> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/> <foaf:homepage rdf:resource="http://localhost:8080/"/> <dc:contributor>Maaß, Corinna C.</dc:contributor> </rdf:Description> </rdf:RDF>