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Direct numerical simulation of rising bubble with path instability
dc.contributor.author | Antepara Zambrano, Óscar |
dc.contributor.author | Balcázar Arciniega, Néstor |
dc.contributor.author | Rigola Serrano, Joaquim |
dc.contributor.author | Oliva Llena, Asensio |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics |
dc.date.accessioned | 2019-03-13T18:51:23Z |
dc.date.issued | 2018 |
dc.identifier.citation | Antepara, O. [et al.]. Direct numerical simulation of rising bubble with path instability. A: International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements. "The 12th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements 26-28 September 2018, Montpellier, France : conference proceedings". 2018, p. 1-6. |
dc.identifier.uri | http://hdl.handle.net/2117/130415 |
dc.description.abstract | Present research is focused on combining High- Performance Computing (HPC) and Direct Numerical Simulation (DNS) of two-phase flows, to study the dy- namic behavior of rising bubble whit path instabilities with moderate/high Reynolds numbers ( Re > 1000 ). The Navier-Stokes equations are discretized us- ing the finite-volume approach; the pressure-velocity coupling is solved using a fractional-step projec- tion method, whereas the conservative level-set (LS) methodology is used for interface capturing. Thus, mass conservation issue that is known to affect stan- dard LS methods is circumvented. Moreover, the spa- tial discretization of the computational domain em- ploys an Adaptive Mesh Refinement (AMR) strategy for the reduction of computational resources. In this work, buoyancy bubbles rising in the wob- bling regime are researched at Re = 1200 , where the characteristics of the path, bubble shape, and vortical structures in the wake are reported. |
dc.format.extent | 6 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids |
dc.subject.lcsh | Two-phase flow |
dc.subject.lcsh | Bubbles--Dynamics |
dc.title | Direct numerical simulation of rising bubble with path instability |
dc.type | Conference report |
dc.subject.lemac | Flux bifàsic |
dc.subject.lemac | Bombolles -- Dinàmica |
dc.contributor.group | Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 23937929 |
dc.description.version | Postprint (published version) |
dc.relation.projectid | info:eu-repo/grantAgreement/MINECO//ENE2015-70672-P/ES/MODELIZACION MULTIESCALA Y SIMULACION NUMERICA DIRECTA DE FLUJOS MULTIFASICOS GAS LIQUIDO EN BURBUJAS, PELICULAS Y ESPRAYS./ |
dc.date.lift | 10000-01-01 |
local.citation.author | Antepara, O.; Balcázar, N.; Rigola, J.; Oliva, A. |
local.citation.contributor | International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements |
local.citation.publicationName | The 12th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements 26-28 September 2018, Montpellier, France : conference proceedings |
local.citation.startingPage | 1 |
local.citation.endingPage | 6 |