Articles techniques et présentations

Soil sedimentation and consolidation, whether they are naturally or anthropically driven processes, are closely interconnected. While theoretical models are available to separately describe the behaviour of either ‘fluid’ suspensions or ‘solid’ soil, no well-established unified theory ... En savoir plus

In nanofluid delivery, backflow along the needle is a major hurdle to deliver drug-carrying nanofluid to the entire tumor. In theory, any approaches to decrease the overall flow resistance in tumors would facilitate drug delivery. The objective of this study is to develop a theoretical ... En savoir plus

Temperature homogeneity is a critical issue for high temperature vacuum furnaces for heat treatment, as small temperature variations in the load volume can significantly influence the heat treatment result. It is generally defined by the so-called Temperature Uniformity Survey (TUS) ... En savoir plus

A key challenge in the design of medical devices that interface with blood is to minimize the likelihood of blood damage. Simulating blood flow through a medical device and estimating the likelihood of blood damage is a key step to improving performance and safety, thereby expediting ... En savoir plus

The goal of this study is to exploit the phase change in vanadium dioxide (VO₂) for optical sensing. Infrared (IR) sensing is of paramount interest for next-generation Internet of Things (IoT) devices. Phase change materials (PCMs) are expected to enable low-energy consumption sensors, ... En savoir plus

This research proposed a novel battery thermal management system that utilized the heat pipe coupling composite fin (HPCF) which consisted of aluminum fin, phase change material and liquid cooling tube. By using battery module, heat transfer module and CFD module of COMSOL, the ... En savoir plus

This article reports the design of a high-power ultrasound system, capable of emitting acoustic radiation at 20kHz with SPL peaks up to 160dB at a distance of up to 1m. The main problem of high power airborne ultrasonic systems lies in the acoustic impedance mismatch between the radiator ... En savoir plus

High temperature variations inside a tent can be a problem for campers’ thermal comfort. To increase user comfort, Decathlon has tents called "Fresh & Black (F&B)". The main improvement of this equipment lies in the textile technology, regulating the temperature inside and ... En savoir plus

锂离子电池的安全长寿命运行离不开高效的热管理系统，其中浸没式液冷热管理系统的散热功率较大同时能实现电池组较高的温度一致性，是目前极具发展潜力的热管理方式。本研究利用COMSOL Multiphysics软件中的固体与流体传热模块和电池中的集总电池模块，并结合非等温流动和电化学热两个热多物理场，建立了浸没式液冷热管理系统的仿真模型，综合比较了三种浸没式液冷方式的散热能力，进一步通过COMSOL中的参数化扫描等功能研究探究了出入口位置、电池间距、冷却液热特性对浸没式液冷散热特性的影响。结果分析中采用了COMSOL丰富的后处理功能 ... En savoir plus

FT wind sensors measure wind speed and direction using an acoustic field superimposed on a flow field in an acoustic resonator equipped with three piezoelectric transducers. The study proposed here focuses on the acoustic resonance technology of a simplified wind sensor geometry, and how ... En savoir plus