相关实验视频
Updated: May 6, 2026

08:01
The Diffusion of Passive Tracers in Laminar Shear Flow
Published on: May 1, 2018
8.5K
双孔度依赖时间的Darcy-Brinkman/Darcy合的多尺度均化及其对淋巴结的应用
A Girelli1, G Giantesio1,2, A Musesti1
1Dipartimento di Matematica e Fisica 'N. Tartaglia', Università Cattolica del Sacro Cuore, Brescia, Italy.
Royal Society open science
|July 18, 2024
概括
这项研究使用加的达西方程和达西-布林克曼方程在多孔介质中模拟流体流动. 它揭示了流体动力学中的记忆效应,这对于理解淋巴结流体运动等过程至关重要.
科学领域:
- 多物理学流体动力学 流体动力学
- 多孔的流媒体流动的媒介.
- 数学建模的数学建模
背景情况:
- 了解复杂的多孔介质中的流体动力学对于各种科学和工程应用至关重要.
- 通过相互连接的断裂和多孔矩阵特征的双孔系统,呈现独特的流动挑战.
研究的目的:
- 为了研究时间依赖的达西-布林克曼和达西方程之间的微尺度合.
- 在不均的条件下,为双孔性问题开发同质化的管理方程.
- 分析时间依赖效应和记忆现象在流体运输中的作用.
主要方法:
- 用于推导宏观方程的非对称均质化技术.
- 达西和达西-布林克曼方程的数学公式.
- 在模型验证的简化设置中的数值解决方案.
主要成果:
- 衍生的同质化方程揭示了两个达西方程之间的合.
- 在一个达西方程中鉴定了由于时间依赖的达西-布林克曼项而导致的记忆效应.
- 在双孔系统中,在流体相之间证明了质量交换.
结论:
- 开发的模型准确地描述了血管化的淋巴结中的流体运动.
- 时间依赖的效应和记忆现象在多孔介质中显著影响流体运输.
- 该研究为分析生物和工程系统中复杂流体流动提供了强大的框架.
更多相关视频
13:07Optical Coherence Tomography Based Biomechanical Fluid-Structure Interaction Analysis of Coronary Atherosclerosis Progression
Published on: January 15, 2022
3.9K
10:23Author Spotlight: Computing the Effects of a Local Radiofrequency Hyperthermia Intervention on Tumor Biomechanics
Published on: December 1, 2023
401
相关概念视频
Lymphatic Vessels and Lymph Transport
13.6K
Lymphatic vessels, known as lymphatics, are crucial in transporting lymph from peripheral tissues to our venous system. This process begins with lymph entering through tiny capillaries that branch through tissues. These capillaries have unique features such as larger diameters, thinner walls, and a distinctive one-way valve system formed by overlapping endothelial cells.
This one-way system allows fluids, solutes, and even pathogens to enter but prevents their return to the intercellular...
This one-way system allows fluids, solutes, and even pathogens to enter but prevents their return to the intercellular...
13.6K
Development of the Lymphatic System
2.9K
The development of lymphatic tissues and vessels in embryonic life begins around the fifth week. These structures originate from the mesoderm layer, with lymph sacs emerging from developing veins.
The first lymph sacs to form are the paired jugular lymph sacs located at the junction of the internal jugular and subclavian veins. From these sacs, lymphatic capillary plexuses extend to the thorax, upper limbs, neck, and head, eventually forming lymphatic vessels. Each jugular lymph sac maintains a...
The first lymph sacs to form are the paired jugular lymph sacs located at the junction of the internal jugular and subclavian veins. From these sacs, lymphatic capillary plexuses extend to the thorax, upper limbs, neck, and head, eventually forming lymphatic vessels. Each jugular lymph sac maintains a...
2.9K