Articles techniques et présentations

高分子囊泡是一类由薄膜包裹液体而形成的“软粒子”，其在生物医药、化妆品以及食品等领域具有广泛的应用，是材料领域最富有意义的研究内容之一。与一般微纳米粒子相比，高分子囊泡在外场作用下极易发生形变，因而研究高分子囊泡在微流道中穿过受限孔洞的动力学行为对其在药物输运、细胞筛选、薄膜性能表征等应用领域具有重要的意义。 由于流体（高分子囊泡内部和外部流体）和固体（高分子囊泡膜）强烈地耦合在一起，再加上流体与膜边界的移动和变形，使得高分子囊泡实际的过孔图像十分复杂。本工作借助COMSOL Multiphysics流固耦合（FSIs）接口，运用任意拉格朗日-欧拉（ALE）算法 ... En savoir plus

This paper is focused on topology optimization of heat transfer and fluid flow systems for multiphysics objectives. Specifically, COMSOL Multiphysics software is coupled with a method of moving asymptotes optimizer in a custom COMSOL / MATLAB script. Various physical process including ... En savoir plus

Metal Additive Manufacturing (AM) can be used to create topologically complex designs that would otherwise be difficult or impossible to produce using traditional methods. However, non-destructive inspection and testing of these structures is made difficult by the presence of internal or ... En savoir plus

We discuss the use of COMSOL Multiphysics 3.4 in the aerodynamic optimization process of the UNLV solarpowered UAV. We also address the use of COMSOL’s Multiphysics ability and how it was used within the scope of the project. In particular we highlight the development of wingtip devices, ... En savoir plus

There is an increasing demand for aerosol devices from E-cigarettes to drug delivery devices with precise dosage. [1][2] The aim of this article is to investigate a Poly-Si micro heater in a vapor generator device. In order to calculate the amount of vapor production, temperature ... En savoir plus

Focused ultrasounds are used in many medical applications as a treatment: it is important to evaluate the induced effects of such a procedure to achieve a high accuracy while keeping the untargeted surrounding areas safe. In the present paper, COMSOL Multiphysics®, a simulation software ... En savoir plus

It is possible to control the motion of magnetic beads using a combination of hydrodynamic and electromagnetic forces. In this work, we investigate the possibility to manipulate the motion of beads with different magnetic moments in a special microfluidic structure so as to separate ... En savoir plus

Electrokinetic transport of fluids has been investigated both experimentally and numerically due to its various applications in microfluidic devices [1-5]. These devices offer the advantage of transporting fluids or particles to specific locations without the aid of mechanical ... En savoir plus

In this work, the fluid flow over a 2D backward-facing step is analyzed in order to provide a case study for the use of different models for the blood dynamic viscosity in COMSOL Multiphysics. Three non-Newtonian models, as well as the Newtonian model are used to study the shear stresses ... En savoir plus

COMSOL Multiphysics provides a powerful numerical platform where various models for microchemical process technology components can be readily created for both education and research. This modeling tool allows chemical engineering students to focus on understanding the effects of various ... En savoir plus