相关实验视频
Updated: Jun 26, 2026
14:25
Determining 3D Flow Fields via Multi-camera Light Field Imaging
Published on: March 6, 2013
提出了一种新方法,用于分析负压隔离室中的空气流动力学,使用粒子图像速度计
Min Jae Oh1, Jung Min Moon1, Seung Cheol Ko2
1AI &Energy Research Center, Korea Photonics Technology Institute, Gwangju 61007, Republic of Korea.
Bioengineering (Basel, Switzerland)
|March 28, 2025
概括
一个新的负压隔离室在气溶生成过程 (AGP) 中有效地含有气溶. 这种便携式盖帽设计可以防止外部滴水分散,提高医疗机构的安全性.
科学领域:
- 医疗工程 医学工程
- 传染病控制和控制传染病
- 气溶科学 气溶科学
背景情况:
- 气溶生成程序 (AGPs) 在COVID-19等大流行期间具有重大感染风险.
- 现有的隔离系统可能缺乏灵活性和可移植性,以适应各种医疗保健场景.
研究的目的:
- 开发和评估一个负压隔离室,用于含有来自AGP的气溶.
- 评估室在防止外部滴滴分散方面的有效性.
主要方法:
- 粒子图像速度测量 (PIV) 技术用于分析气溶的运动和制.
- 在负压和非负压条件下对气溶分散的比较.
- 使用传感器测量颗粒度,以验证封装.
主要成果:
- 如果没有负压,水滴将广泛分散 (26.9°34.2°的扩散角),有可能外泄.
- 负压缩小了扩散角度 (20.0°35.1°),并将空气流向内,防止分散.
- 传感器证实了在负压下<10微米颗粒的完全制.
结论:
- 开发的负压室有效地抑制了外部气溶泄漏.
- 与传统系统相比,该室提供了卓越的灵活性和便携性.
- 非常适合应急响应,移动医疗保健和疫情管理.
相关概念视频
01:17Steady, Laminar Flow Between Parallel Plates
Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
01:23Steady, Laminar Flow in Circular Tubes
Hagen-Poiseuille flow describes a viscous fluid's steady, incompressible flow through a cylindrical tube with a constant radius R. This flow profile is often applied to understand fluid transport in narrow channels, such as capillaries. It serves as a foundational example of laminar flow. In this model, cylindrical coordinates (r,θ,z) are used to describe the radial (r), angular (θ), and axial (z) dimensions within the tube. For Hagen-Poiseuille flow, the velocity profile is purely axial,...