Consultez les proceedings de la Conference COMSOL 2020
摘要 微通道换热器是一种高效换热设备,与普通换热器相比,微型换热器体积小,传热系数高,具有广泛的应用前景。微型换热器的实验研究存在较大的难度,而数值模拟则是深入研究微型换热器的重要方法。本文采用通用商用软件 comsol模拟了微型错流式换热器(MCHE)。 与传统换热器不同,微型换热器固体材料内部沿流体流动方向的热传导会显著地影响换热性能,而以往针对这方面研究是非常有限的。在本文中,通过数值模拟的方法研究了流速对MCHE温度场、压力场、换热系数、局部努塞尔数分布等的影响。 关键词:微型错流换热器,轴向导热,数值研究,总传热系数 En savoir plus
Prediction of freezing temperature field close to the segment is very important in artificial ground freezing project. Because of the effect of convection and heat conduction, there are a lot of factors in numerical simulation for these problems. If the length of freezing wall close to ... En savoir plus
Design of Blood warmer medical device Rajesh Kapuganti1, Sivakumar A2, HCL Technologies, Chennai Email: rajesh-kapuganti@hcl.com1 sivakumara@hcl.com2 Abstract Multiphysics simulations were performed for designing the blood warmer accessory of a dialysis machine. As part of the design ... En savoir plus
Radiofrequency (RF) ablation is a treatment modality that kills unwanted tissue by heat. RF ablation is now the treatment of choice for certain types of cardiac arrhythmia. During RF ablation, an electrode is inserted into, or steered intravascularly to the target tissue region under ... En savoir plus
Magnesium hydride (MgH2) has been one of the most promising hydrogen storage methods that can be applied to commercial hydrogen energy systems due to magnesium’s safety, low cost, and excellent storage capacity for hydrogen, compared to other reversible metal hydrides. But hydrogen ... En savoir plus
Extensive research efforts have been dedicated recently to developing and characterizing metamaterials that improve the performance of common thermoelectric materials and the electric contacts within a thermoelectric generator (TEG). With increasing demand for clean energy and climate ... En savoir plus
The emerging technologies related to AI and Quantum Computing are shifting the nano-bio-info paradigm, reconsidering the presently assumed bioenergetic processes of the living cells. Thus, a key process as ATPase can be considered through a model governed by quantum field theory (QFT) ... En savoir plus
Fiber-reinforced composite materials are widely used for building lightweight parts in several application fields like aviation or naval industry. Here the longitudinal fibers, which take the main mechanical loads of the component, are embedded in a shape giving resinous matrix. The ... En savoir plus
The advantages of carbon based materials at high temperature applications are their lightweight high-temperature stability, chemical resistance combined with good thermally and electrically conducting properties. In such applications, typically materials like graphite and carbon fiber ... En savoir plus
Gaseous fluorine plays a major role in the nuclear industry since it is used to produce uranium hexafluoride, whose physical properties are the key to classical uranium enrichment processes. The fluorine production process is based on the electrolysis of an anhydrous HF-composed molten ... En savoir plus