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COMSOL Conference 2024 論文集を見る
A model for coupled heat and mass transfer in porous, capillary-active materials is validated against experimental data obtained by drying calcium silicate specimens. The accuracy of the numerical solution is qualitatively investigated by considering mass conservation for a set of ... 詳細を見る
In this paper, the "Morton Effect" is analyzed. This phenomenon is a particular kind of rotor instability due to non-uniform journal bearing heating. In this paper, an overview of the previous works has been done. After this preliminary study, a specific approach suggested by the ... 詳細を見る
An app built with the COMSOL Multiphysics® software allows both expert and beginner users to carry out parametric simulations thanks to flexible and user-friendly customized interfaces. Many people, with or without expertise in numerical analysis, can now access, exploit and share ... 詳細を見る
Radiant heating generally addresses all heat emission systems having a share of radiant heat emission greater than 50%, compared to a convector or fan coil where the heat is transferred mainly by means of convection. Recently, so-called infrared-heating systems are discussed as a cost ... 詳細を見る
Standard measuring techniques for thermal conductivity cannot be readily applied to determine the load-dependent thermal conductivity of porous adsorbents, because the local ad- and desorption inside the specimen and the thickness of the specimen are not considered. Hence, in this work a ... 詳細を見る
During the last decades, mid-IR (3-12µm) laser sources have attracted attention due to their potential applications in different fields like infrared counter-measures (e.g: missile jamming) and remote chemical sensing. In this context, Onera has been working on the development of non ... 詳細を見る
Benchmarks are important tools to verify computational models. In the research area of building physics, the so-called HAMSTAD (Heat, Air and Moisture STAnDardization) project is a very well known benchmark for the testing of simulation tools. In this paper we revisit this benchmark by ... 詳細を見る
定量分析生物颗粒形态的变化可以为疾病诊断提供依据。例如血红细胞形态的变化常常会伴随有相应的血液疾病[1]，细胞的癌变常常伴随有细胞核形态的变化[2]等等。无标记的光学显微成像技术已经可以对生物颗粒的尺度和形状进行直接测量。光声显微成像技术 (PAM) 利用生物颗粒固有的吸光本领，已经可以对单个生物颗粒（如细胞和细胞器）进行成像[3]。 最近，光声流式仪(the photoacoustic flow-cytometry)已经实现了对单个生物颗粒进行连续检测[4]。然而，为了在大量的生物颗粒中快速检测生物颗粒的形貌，最好的方法是并非对其进行直接成像，而是采用高频光声显微技术 ... 詳細を見る
引言：激光诱导间质肿瘤热疗法是一种可使生物组织局部地方凝结坏死的肿瘤疾病治疗方法，目前已经用于肝、脑等各部位的肿瘤治疗[1-2]。为了更好地进行肿瘤疾病的治疗，需要实时地对组织的温度和热损伤进行监控，而检测技术很难实现对肿瘤治疗过程的实时监测，故数值计算成为研究光热疗法的有力工具[2-6]。本模型将生物组织光传输的物理场与热传输的物理场相耦合，考虑组织光热参数随温度变化的情况，研究了肿瘤周围含有大动脉的情况时组织的温度分布随时间的变化情况，研究结果对指导临床医学肿瘤治疗有重要意义。 COMSOL Multiphysics® 的软件使用： 几何模型：如图1所示 ... 詳細を見る
本作品通过研究微波炉矩形金属璧的单向移动，实现腔体内电场分布的变化，从而达到调节作用腔体内各点的电场分布的目的。图表1为仿真几何模型示意图，除了腔体内部的小块土豆，其余的腔体材料均为理想导体铜，腔体内为标准大气压下的空气。图表1中300mm30mm350mm矩形块的设计是为了更便捷地计算移动后的网格。本次仿真沿x轴正方向向外移动2的外侧面金属壁来实现腔体的移动。端口激励源为TE10模、频率2.45GHz、功率700W、相位为0的微波。图表2为金属壁移动示意图，通过软件的移动网格接口实现移动金属壁的仿真。仿真结果良好 ... 詳細を見る