Výsledky vyhledávání - "Néstor Balcázar"

Akademický článek

Numerical Simulation of High-Density Ratio Bubble Motion with interIsoFoam

Autor: Simone Siriano, Néstor Balcázar, Alessandro Tassone, Joaquim Rigola, Gianfranco Caruso

Publikováno v: Fluids, Vol 7, Iss 5, p 152 (2022)

The breeding blanket is one of the fundamental components of a nuclear fusion reactor and is responsible for the fuel production, generating tritium through neutronic capture reaction between lithium and neutrons. Lithium is a liquid PbLi alloy and t

Externí odkaz: https://doaj.org/article/071b04c841cb466bb027f8c0ac17d404

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Akademický článek

Factores de riesgo y características de la gestación en la adolescente y su hijo

Autor: Angela Escobar, Néstor Balcázar

Publikováno v: Revista Colombiana de Obstetricia y Ginecología, Vol 46, Iss 2 (1995)

Los riesgos biológicos, sociales y psicológicos de la gestación en adolescentes aumentan la morbilidad y mortalidad maternofetal. Prospectivamente se tomaron 161 adolescentes embarazadas atendidas en el Hospital Infantil Lorencita Villegas de Sant

Externí odkaz: https://doaj.org/article/fcd4457e56a94d5589c67856b2a856ca

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DNS of Mass Transfer in Bi-dispersed Bubble Swarms

Autor: Néstor Balcázar-Arciniega, Joaquim Rigola, Assensi Oliva

Publikováno v: Computational Science – ICCS 2022 ISBN: 9783031087592
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

This work presents Direct Numerical Simulation of mass transfer in a bi-dispersed bubble swarm at high Reynolds number, by using a multiple marker level-set method. Transport equations are discretized by the finite-volume method on 3D collocated unst

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7f482b550cc91e0b653d6d534a29ef3
https://hdl.handle.net/2117/370242

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Numerical study of rising bubbles with path instability using conservative level-set and adaptive mesh refinement

Autor: Oscar Antepara, Assensi Oliva, Néstor Balcázar, Joaquim Rigola

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

This paper focuses on three-dimensional direct numerical simulations of rising bubbles in the wobbling regime, and the study of its dynamical behavior for Eötvös number 1 ≤ Eo ≤ 10 and Morton number 1e−11 ≤ M ≤ 1e−9. The computational m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d0afa68be5d09380df56b6a9abe54fd
https://doi.org/10.1016/j.compfluid.2019.04.013

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A numerical study of liquid atomization regimes by means of conservative level-set simulations

Autor: Eugenio Schillaci, Assensi Oliva, Oscar Antepara, Néstor Balcázar, Joaquim Rigola Serrano

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

In this work, a conservative level-set finite-volume solver for interface-capturing is employed to perform the direct numerical simulation of Liquid Jets discharging into a quiescent air chamber. The scope is to propose a complete break-up regimes ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61d46e0c91904e5d4a17b340d3b6f82a
https://doi.org/10.1016/j.compfluid.2018.10.017

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Tetrahedral adaptive mesh refinement for two-phase flows using conservative level-set method

Autor: Assensi Oliva, Oscar Antepara, Néstor Balcázar

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

In this article, we describe a parallel adaptive mesh refinement strategy for two-phase flows using tetrahedral meshes. The proposed methodology consists of combining a conservative level-set method with tetrahedral adaptive meshes within a finite vo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::773b09d08f1db6a5096b46192f260a06
https://hdl.handle.net/2117/335448

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Unstructured Level-Set Method For Saturated Liquid-Vapor Phase Change

Autor: Néstor Balcázar, Joaquim Rigola, Assensi Oliva

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

A novel conservative level-set method for saturated liquid-vapor phase change on unstruc-tured meshes is introduced. Transport equations are discretized by the finite-volume method on col-located unstructured grids. Mass transfer promoted by thermal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::090bb6747e5a0937282b8dab192310d5
https://hdl.handle.net/2117/362446

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A numerical approach for non-Newtonian two-phase flows using a conservative level-set method

Autor: Ahmad Amani, Joaquim Rigola, Néstor Balcázar, Alireza Naseri

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

A finite-volume based conservative level-set method is presented to numerically solve the non-Newtonian multiphase flow problems. One set of governing equations is written for the whole domain, and different phases are treated with variable material

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d90da1d1ecb49f57ef9bdb309fd5bbd
https://hdl.handle.net/2117/181365

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DNS of Unequal Size Droplets Collision Using a Moving-Mesh/Level-Set Method

Autor: Néstor Balcázar, Assensi Oliva, E. Gutiérrez, Ahmad Amani

Publikováno v: ERCOFTAC Series ISBN: 9783030428211
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

The dynamics of binary droplets collision is of huge importance in different fields, from multiphase reactors (Dudukovic et al in Chem Eng Sci 54:1975–1995, 1999 [11]), raindrop formation, ink-jet printing, spray combustion, emulsion stability, tur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::309c09c7b5193671beaca2abaa6bce48
https://doi.org/10.1007/978-3-030-42822-8_14

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DNS of Drag-Force and Reactive Mass Transfer in Gravity-Driven Bubbly Flows

Autor: Joaquim Rigola, Assensi Oliva, Néstor Balcázar, Oscar Antepara

Publikováno v: ERCOFTAC Series ISBN: 9783030428211
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

Mass transfer processes in bubbly flows are relevant in both nature and industry. Multiple examples arise from the so-called unit operations of the chemical engineering, where bubble columns are used for separation processes, or as chemical and bioch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8afda570bc7438d8c19f2986f4e34c57
https://doi.org/10.1007/978-3-030-42822-8_16

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