Search Results - "Oliva Llena, Asensio"

Turbulent flow around a square cylinder at Reynolds number 22,000: A DNS study by Trias, F.X., Gorobets, A., Oliva, A.

“…•DNS results of the turbulent flow around a square cylinder at Re=22,000 are presented.•A significantly larger domain has been used compared with previous…”
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A level-set model for mass transfer in bubbly flows by Balcázar-Arciniega, Néstor, Antepara, Oscar, Rigola, Joaquim, Oliva, Assensi

“…[Display omitted] •A new CLS model for heat transfer or mass transfer at deformable interfaces.•A multiple marker methodology for mass transfer or heat…”
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Numerical study of droplet deformation in shear flow using a conservative level-set method by Amani, Ahmad, Balcázar, Néstor, Castro, Jesús, Oliva, Assensi

“…•The physics of droplet in shear is accurately captured.•Mass of the droplet is fully conserved.•The vorticity magnitude inside of the droplet decreases as…”
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Numerical study of binary droplets collision in the main collision regimes by Amani, Ahmad, Balcázar, Néstor, Gutiérrez, Enrique, Oliva, Assensi

“…[Display omitted] •There are related fluctuations in different energy budgets.•Kinetic energy recovery is maximum for the bouncing regime.•Gas rupture time of…”
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Heat transfer analysis and numerical simulation of a parabolic trough solar collector by Hachicha, A.A., Rodríguez, I., Capdevila, R., Oliva, A.

“…•Heat transfer analysis of the heat collector element is proposed.•The circumferential distribution of the solar flux around the receiver is studied.•The…”
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A coupled volume-of-fluid/level-set method for simulation of two-phase flows on unstructured meshes by Balcázar, Néstor, Lehmkuhl, Oriol, Jofre, Lluís, Rigola, Joaquim, Oliva, Assensi

“…•A VOF/LS method is introduced for simulation of two-phase flows on unstructured meshes.•A VOF-PLIC method is used for interface advection.•Surface tension…”
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Direct numerical simulation of a fully developed turbulent square duct flow up to Reτ=1200 by Zhang, Hao, Trias, F. Xavier, Gorobets, Andrey, Tan, Yuanqiang, Oliva, Assensi

“…[Display omitted] •DNS on turbulent duct flows was conducted up to Reτ=1200.•Cartesian staggered meshes were employed up to 167.8millions.•Both the mean flow…”
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A generalized computational model for the simulation of adsorption packed bed reactors – Parametric study of five reactor geometries for cooling applications by Papakokkinos, Giorgos, Castro, Jesús, López, Joan, Oliva, Assensi

“…•A computational model for adsorption packed bed reactors of any potential geometry.•Parametric study of five reactor geometries for adsorption cooling…”
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On the flow past a circular cylinder from critical to super-critical Reynolds numbers: Wake topology and vortex shedding by Rodríguez, I., Lehmkuhl, O., Chiva, J., Borrell, R., Oliva, A.

“…[Display omitted] •Large-eddy simulations are used to investigate the flow in the critical and super-critical regimes.•Characteristics length scales of the…”
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Thermal and fluid dynamic analysis of Direct Steam Generation Parabolic Trough Collectors by Ferchichi, Souha, Kessentini, Hamdi, Morales-Ruiz, Sergio, Rigola, Joaquim, Bouden, Chiheb, Oliva, Assensi

“…[Display omitted] •The numerical model of Parabolic Trough Collectors for Direct Steam Generation is presented.•The model is based on a step by step finite…”
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A multiple marker level-set method for simulation of deformable fluid particles by Balcázar, Néstor, Lehmkuhl, Oriol, Rigola, Joaquim, Oliva, Assensi

“…[Display omitted] •The algorithm is suitable for simulation of droplet and bubble dynamics without numerical coalescence.•The numerical method is developed in…”
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Fixed-grid numerical modeling of melting and solidification using variable thermo-physical properties – Application to the melting of n-Octadecane inside a spherical capsule by Galione, P A, Lehmkuhl, O, Rigola, J, Oliva, A

“…A fixed-grid enthalpy model for unstructured meshes and explicit time integration schemes (Galione et al., 2014) is here extended for taking into account the…”
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Analysis and design of a drain water heat recovery storage unit based on PCM plates by Morales-Ruiz, S., Rigola, J., Oliet, C., Oliva, A.

“…•A new configuration of a drain water heat recovery unit based on PCM is presented.•Numerical and experimental study is proposed to analyse and design the…”
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Numerical study of rising bubbles with path instability using conservative level-set and adaptive mesh refinement by Antepara, Oscar, Balcázar, Néstor, Rigola, Joaquim, Oliva, Assensi

“…•Numerical study of rising bubbles with path instability.•Combination of CLS and AMR methods.•Bubble path, bubble shape and vortical structures at high…”
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Drain water heat recovery storage-type unit for residential housing by Torras, S., Oliet, C., Rigola, J., Oliva, A.

“…•A DWHR unit performance has been analysed at different flow rates and temperatures.•The DWHR is capable to recover from 34% to 60% of the energy…”
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Multi-layered solid-PCM thermocline thermal storage concept for CSP plants. Numerical analysis and perspectives by Galione, P.A., Pérez-Segarra, C.D., Rodríguez, I., Oliva, A., Rigola, J.

“…•A new thermocline-like concept (MLSPCM) of thermal storage for CSP is presented.•It combines solid and PCM filler materials in a multi-layered…”
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Numerical investigation of the location of maximum erosive wear damage in elbow: Effect of slurry velocity, bend orientation and angle of elbow by Zhang, Hao, Tan, Yuanqiang, Yang, Dongmin, Trias, Francesc Xavier, Jiang, Shengqiang, Sheng, Yong, Oliva, Assensi

“…A numerical simulation of fluid transportation process was carried out focused on the investigation into predicting the location of the puncture point location…”
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Flow over a realistic car model: Wall modeled large eddy simulations assessment and unsteady effects by Aljure, D.E., Calafell, J., Baez, A., Oliva, A.

“…Numerical simulations are carried out on the flow over a realistic generic car geometry, the DrivAer-fastback car model. Pure large eddy simulations (LES) and…”
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A level-set model for thermocapillary motion of deformable fluid particles by Balcázar, Néstor, Rigola, Joaquim, Castro, Jesús, Oliva, Assensi

“…•A new CLS model for thermocapillary flow.•DNS of thermocapillary migration.•Variable surface tension calculation in multiple marker CLS…”
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A numerical study of liquid atomization regimes by means of conservative level-set simulations by Schillaci, Eugenio, Antepara, Oscar, Balcázar, Néstor, Rigola, Joaquim, Oliva, Assensi

“…•Adoption of a CLS-AMR strategy to achieve the DNS of two-phase Liquid Jets.•Validation in the context of 3D atomization by simulating Coaxial Liquid-Air…”
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