通过粒子图像速度计和热线气流计的双层交叉通风模型的室内流量数据集
Data in brief
|December 26, 2023
概括
这项研究在两层建筑模型上的风洞实验中提供了详细的室内空气速度数据. 这些数据集有助于验证自然交叉通风系统的计算流体动力学 (CFD) 模拟.
科学领域:
- 流体动力学 流体动力学
- 建筑物通风的通风方式
- 环境工程环境工程
背景情况:
- 自然交叉通风对于可持续的建筑设计至关重要,特别是在热带气候中.
- 了解多层结构中的室内空气流动力学是复杂的.
- 现有的研究往往缺乏高分辨率,暂时解析的速度场数据.
研究的目的:
- 为室内速度场提供高分辨率,时间和空间分辨率的数据集.
- 支持对交叉通风计算流体动力学 (CFD) 模型的验证.
- 为了促进进一步研究多层通风流的流性质.
主要方法:
- 风洞实验是在两层简化建筑模型上进行的.
- 热线气流测量 (HWA) 和粒子图像速度测量 (PIV) 用于数据采集.
- 测量采集了速度场的瞬间和统计数据 (平均值,方差,共方差).
主要成果:
- 室内速度场的高分辨率数据集被生成为两个不同的打开配置.
- 确定了空气速度的可靠统计数据,包括平均值,差异和共差.
- 为详细的流量分析提供了即时速度组件数据集.
结论:
- 生成的数据集为交叉通风研究中的CFD模型验证提供了宝贵的资源.
- 这些数据可以进一步了解多层建筑通风中的流特性.
- 这项工作支持开发更有效和可持续的自然通风策略.
相关概念视频
Laminar and Turbulent Flow
8.5K
Fluid dynamics is the study of fluids in motion. Velocity vectors are often used to illustrate fluid motion in applications like meteorology. For example, wind—the fluid motion of air in the atmosphere—can be represented by vectors indicating the speed and direction of the wind at any given point on a map. Another method for representing fluid motion is a streamline. A streamline represents the path of a small volume of fluid as it flows. When the flow pattern changes with time, the...
8.5K
Eulerian and Lagrangian Flow Descriptions
1.4K
Fluid flow analysis is critical in many scientific and engineering disciplines, and two principal approaches are used to describe this flow: the Eulerian and Lagrangian methods. These methods offer different perspectives on monitoring and analyzing the motion of fluids, each with distinct advantages depending on the scenario.
The Eulerian method focuses on fixed points in space where fluid properties, such as velocity, pressure, and temperature, are observed as the fluid moves between these...
The Eulerian method focuses on fixed points in space where fluid properties, such as velocity, pressure, and temperature, are observed as the fluid moves between these...
1.4K
Couette Flow
282
Couette flow represents the flow of fluid between two parallel plates, with one plate fixed and the other moving with a constant velocity. This configuration allows for a simplified analysis using the Navier-Stokes equations, which govern fluid motion under conditions of viscosity and incompressibility. For Couette flow, the assumptions include a steady, laminar, incompressible flow with a zero-pressure gradient in the flow direction. This flow type is beneficial for understanding shear-driven...
282
Plane Potential Flows
394
Plane potential flows simplify fluid motion by assuming the fluid to be irrotational and incompressible. These characteristics allow these flows to be described by a velocity potential function, ϕ, representing the flow speed in a given direction, and a stream function, ψ, that visualizes the flow path, both governed by Laplace's equation. These parameters help in estimating flow patterns, velocity distributions, and pressure fields around various hydraulic structures.
Uniform...
Uniform...
394


