全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:... C. Oliet , J. Rigola , C.D. Pérez-Segarra
来源:[J].International Journal of Refrigeration(IF 1.793), 2018Elsevier
摘要:Abstract(#br)Determination of the optimal insulation thickness is of great relevance in many thermal engineering applications. In this paper, a simple optimization strategy based on the Lagrange multipliers is presented. The optimal set of thicknesses is analytically found for di...
作者:... L. Jofre , O. Lehmkuhl , C.D. Pérez-Segarra
来源:[J].Computers and Fluids(IF 1.467), 2019, Vol.190, pp.308-321Elsevier
摘要:Abstract(#br)The development and assessment of an efficient parallelization method for the evaluation of reaction rates in combustion simulations is presented. Combustion simulations where the finite-rate chemistry model is employed are computationally expensive. In such simulati...
作者:... J. López , J. Rigola , C.D. Pérez-Segarra
来源:[J].Tribology International(IF 1.536), 2017, Vol.105, pp.1-14Elsevier
摘要:Abstract(#br)A complete numerical dynamic analysis of reciprocating compressor mechanism is presented, coupling the instantaneous pressure in the compression chamber, the electric motor torque and the hydrodynamic reactions, which arise from the piston and crankshaft secondary mo...
作者:... O. Lehmkuhl , F.X. Trias , C.D. Pérez-Segarra
来源:[J].Journal of Computational Physics(IF 2.138), 2016, Vol.326, pp.474-498Elsevier
摘要:Abstract(#br)The spatial filtering of variables in the context of Computational Fluid Dynamics (CFD) is a common practice. Most of the discrete filters used in CFD simulations are locally accurate models of continuous operators. However, when filters are adaptative, i.e. the filt...
作者:... J. Castro , C.D. Pérez-Segarra , A. Oliva
来源:[J].International Journal of Thermal Sciences(IF 2.47), 2008, Vol.48 (4), pp.708-721Elsevier
摘要:Abstract(#br)The transient cooling of a fluid initially at rest inside a vertical cylinder submitted to heat losses through the walls is studied. The study is restricted to laminar flow conditions. In order to identify the relevant non-dimensional groups that define the unsteady ...
作者:C.D. Pérez-Segarra , I. Rodríguez ...
来源:[J].Applied Energy(IF 4.781), 2015, Vol.142, pp.337-351Elsevier
摘要:Abstract(#br)Thermocline storage concept has been considered for more than a decade as a possible solution to reduce the huge cost of the storage system in concentrated solar power (CSP) plants. However, one of the drawbacks of this concept is the decrease in its performance thro...
作者:... O. Lehmkuhl , C.D. Pérez-Segarra , A. Oliva
来源:[J].International Journal of Heat and Fluid Flow(IF 1.581), 2015, Vol.55, pp.76-90Elsevier
摘要:Abstract(#br)The influence of the rotation ratio on the forces acting on a circular cylinder at Re = 5000 has been investigated by means of direct numerical simulations (DNS). Spin ratios in the range 0 ⩽ α = U T / U ref ⩽ 5 have been considered. The results showed that...
作者:C.D. Pérez-Segarra , J. Castro
来源:[J].International Journal of Thermal Sciences(IF 2.47), 2009, Vol.49 (4), pp.692-701Elsevier
摘要:Abstract(#br)This paper is devoted to the presentation of a new model for fin-and-tube evaporators, focusing on the solid core simulation and its integration with a quasi-homogeneous two-phase flow model for the in-tube refrigerant flow. Special attention is given to separated in...
作者:C.D. Pérez-Segarra , I. Rodríguez ...
来源:[J].Solar Energy(IF 2.952), 2015, Vol.119, pp.134-150Elsevier
摘要:Abstract(#br)Thermocline storage concept is considered as a possible solution to reduce the cost of thermal storage in concentrated solar power (CSP) plants. Recently, a multi-layered solid-PCM (MLSPCM) concept—consisting of a thermocline-like tank combining layers of solid ...
作者:... O. Lehmkuhl , F.X. Trias , C.D. Pérez-Segarra
来源:[J].Journal of Computational Physics(IF 2.138), 2016, Vol.326, pp.474-498Elsevier
摘要:Abstract(#br)The spatial filtering of variables in the context of Computational Fluid Dynamics (CFD) is a common practice. Most of the discrete filters used in CFD simulations are locally accurate models of continuous operators. However, when filters are adaptative, i.e. the filt...

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