Browsing by Author "Chiva Segura, Jorge"
Now showing items 1-20 of 26
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Advanced CFD&HT numerical modeling of solar tower receivers
(Elsevier, 2013)
Conference report
Open AccessThis paper presents an advanced methodology for the detailed modeling of the heat transfer and fluid dynamics phenomena in solar tower receivers. It has been carried out in the framework of a more ambitious enterprise which ... -
An enhanced finite volume based solver for thermoelastic materials in fluid-structure coupled problems
(2018)
Conference report
Restricted access - publisher's policy -
Characteristics of the near wake region behind a cylinder at critical and super-critical Reynolds numbers
(Begell House, 2015)
Conference report
Restricted access - publisher's policyLarge-eddy simulations (LES) of the flow past a circular cylinder are used to investigate the characteristics of the near wake region at Reynolds numbers Re = 2.5 × 105 - 8.5 × 105. This range encompasses both the critical ... -
Coherent structures in a flow past a circular cylinder at critical and super-critical Reynolds numbers
(Springer, 2015)
Conference report
Restricted access - publisher's policyIt is well known that the wake topology in the flow past a circular cylinder remains almost unchanged up to Reynolds number ~105 Williamson (Annu Rev Fluid Mech 28(1), 477–539 (1996)) [1]. Then, at Re~2×105 major changes ... -
Detailed numerical model for the receiver of a solar power tower plant
(2012)
Memorandum / Journal
Restricted access - publisher's policyIn this paper, a numerical model for the simulation of the receiver of a solar power tower plant is presented. This global model is composed of 4 specific sub-models (heat conduction, two-phase, thermal radiation and natural ... -
Development of a high accurate numerical platform for the thermal and optical optimization of linear Fresnel receivers
(International Solar Energy Society, 2017)
Conference lecture
Restricted access - publisher's policyThis paper represents an advanced methodology for the detailed modeling of the heat transfer and fluids dynamics phenomena in Linear Fresnel receivers. The present work aims at modeling Linear Fresnel elements (e.g. ... -
Direct numerical simulation of the turbulent natural convection flow in an open cavity of aspect ratio 4
(Begell House, 2012)
Conference report
Open AccessIn this paper, three-dimensional turbulent natural convection heat transfer in an open cavity with an isothermal wall facing the overture has been studied. The aspect ratio chosen for the cavity has been 4 to complement the ... -
Direct numerical simulations and symmetry preserving regularization simulations of the flow over a circular cylinder at Reynolds number 3900
(2009-09-14)
Conference lecture
Restricted access - publisher's policyFlow around cylindrical structures is of relevance for many practical applications. Knowledge of flow-related unsteady loading of such structures is crucial for hydro - and aerodynamic control and design. Recenty, the ... -
DNS of falling droplets in a vertical channel
(WIT Press, 2018-02-01)
Article
Open AccessThis paper presents Direct Numerical Simulation (DNS) of the falling motion of single and multiple deformable drops in a vertical channel. A systematic study of the wall effect on the motion of single drop is performed for ... -
Energy simulation of a single family dwelling with a modular object-oriented tool
(2015)
Conference report
Restricted access - publisher's policy -
Experimental evaluation of a pre-industrial air-cooled LiBr-H2O small capacity absorption machine
(2011)
Conference lecture
Open AccessThe paper studies thermal design and describes the experimental set-up of a domestic-scale prototype experimental cooling system based on a 7kW of nominal capacity single-stage small LiBr-H2O air-cooled absorption machine. ... -
LES-based study of the roughness effects on the wake of a circular cylinder from subcritical to transcritical Reynolds numbers
(2017-10-27)
Article
Open AccessThis paper investigates the effects of surface roughness on the flow past a circular cylinder at subcritical to transcritical Reynolds numbers. Large eddy simulations of the flow for sand grain roughness of size k/D = 0.02 ... -
Low Mach Navier-Stokes equations on unstructured meshes
(2012)
Conference report
Restricted access - publisher's policyNumerical methods for fluxes with strong density variations but with speeds much lower than the sound speed, known as low Mach flows, present some particularities with respect to incompressible formulations. Despite ... -
Modelization of heat transfer and fluid dynamics in solar power towers
(2011)
Conference lecture
Open Access -
Modelization of the Low-Mach Navier Stokes equations in unstructured meshes
(2011)
Conference lecture
Restricted access - publisher's policyIn this paper a Low-Mach number approximation of the Navier Stokes Equations in unstructured meshes is presented. Both staggered and collocated formulations for unstructured grids will be used.The aim is to develop a ... -
Numerical analysis of conservative unstructured discretisations for low Mach flows
(2016-12-01)
Article
Open AccessUnstructured meshes allow easily representing complex geometries and to refine in regions of interest without adding control volumes in unnecessary regions. However, numerical schemes used on unstructured grids have to ... -
Numerical simulation of roughness effects on the flow past a circular cylinder
(Institute of Physics (IOP), 2016)
Conference report
Open AccessIn the present work large eddy simulations of the flow past a rough cylinder are performed at a Reynolds number of Re = 4.2 × 105 and an equivalent sand-grain surface roughness height ks = 0.02D. In order to determine the ... -
On the flow past a circular cylinder from critical to super-critical Reynolds numbers: Wake topology and vortex shedding
(2015-05-13)
Article
Open AccessLarge-eddy simulations (LES) of the flow past a circular cylinder are used to investigate the flow topology and the vortex shedding process at Reynolds numbers Re=2.5×105-8.5×105Re=2.5×105-8.5×105. This range encompasses ... -
On the flow past a circular cylinder from critical to super-critical Reynolds numbers: wake topology and vortex shedding
(2014)
Conference report
Open Access -
On the large-eddy simulations of the flow past a cylinder at critical Reynolds numbers
(Springer, 2013)
Conference report
Restricted access - publisher's policy
