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dc.contributor.authorArias Montenegro, Francisco Javier
dc.contributor.authorHeras Jiménez, Salvador Augusto de las
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Mecànica de Fluids
dc.identifier.citationArias, F.J.; De Las Heras, S.A. On thermocapillary rings from radioactive particles suspended at the surface of liquids. "International journal of thermal sciences", Juliol 2019, vol. 141, p. 14-18.
dc.description.abstractThermocapillary motion and its significance with regard the thermal behavior of heat sources and with particular reference to radioactive particles suspended in fluids is discussed. It shown that because the heat source, a thermocapillary flow is induced with the viscous liquid flowing outwards from the particle and then with a drag force propelling the surrounding suspended material away with the formation of a diffusive ring. Utilizing a simplified physical model, it was found a power-law for the concentration of particles surrounding the hot particle. The formation of such a ring may be important as a visual simple way to detect or unveil the presence of radioactive particles suspended in lakes, rivers, ponds or aquifers after,say, an accidental atmospheric release, a new method for detection under controlled conditions or in geophysical science. Computational Fluid Dynamics (CFD) simulations were performed which agree qualitatively and quantitatively well with the analytical model.
dc.format.extent5 p.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids::Transport de fluids
dc.subject.lcshFluid dynamics
dc.titleOn thermocapillary rings from radioactive particles suspended at the surface of liquids
dc.subject.lemacCalor -- Convecció
dc.subject.lemacDinàmica de fluids
dc.contributor.groupUniversitat Politècnica de Catalunya. SIC - Sistemes Intel·ligents de Control
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (author's final draft)
local.citation.authorArias, F.J.; De Las Heras, S.A.
local.citation.publicationNameInternational journal of thermal sciences

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