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相关概念视频

Modeling and Similitude01:12

Modeling and Similitude

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Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
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Design Example: Creating a Hydraulic Model of a Dam Spillway01:21

Design Example: Creating a Hydraulic Model of a Dam Spillway

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Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.
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Typical Model Studies01:30

Typical Model Studies

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Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
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GIS Software, Hardware, and Sources of GIS Data01:23

GIS Software, Hardware, and Sources of GIS Data

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A Geographic Information System (GIS) combines specialized software and hardware to effectively manage, analyze, and present spatial and related data. GIS software includes critical functionalities such as a user interface for easy navigation, database management tools for handling spatial and attribute data, and data retrieval features for efficient access. Analytical tools transform raw data into insights, while display functions produce maps and reports in various formats for effective...
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Plane Potential Flows01:23

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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...
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Laminar and Turbulent Flow01:07

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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...
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相关实验视频

Updated: Jul 12, 2025

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment
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一个基于GIS的开放3D模拟软件,用于预测冷却塔漂移扩散.

Xuan Wang1, Minghua Lv2, Shuhuan Liu1

  • 1School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.

Scientific reports
|October 24, 2023
PubMed
概括
此摘要是机器生成的。

一个新的模拟软件,XJCT-3D,改进了冷却塔湿分散模型. 它准确地预测颗粒沉积,帮助环境影响评估和缓解策略.

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科学领域:

  • 环境工程 环境工程
  • 计算流体动力学的流体动力学.
  • 地理信息系统 (GIS) 是一个地理信息系统.

背景情况:

  • 传统的计算流体动力学 (CFD) 软件在冷却塔湿分散方面面临着挑战,包括低效率和不充分的视觉表示.
  • 准确的湿分散模型对于评估环境影响和制定减缓策略至关重要.

研究的目的:

  • 开发XJCT-3D,一种用于增强冷却塔湿分散分析的新型模拟软件.
  • 整合地理空间可视化功能,以更好地了解分散模式.
  • 用实验数据验证软件的准确性.

主要方法:

  • 开发 XJCT-3D 模拟软件.
  • 将XJCT-3D与Dotspatial开放GIS组件相结合,用于地理空间可视化.
  • 模拟结果的验证使用来自ChalkPoint发电厂的追踪器实验数据.

主要成果:

  • XJCT-3D在模拟冷却塔的湿沉积过程中表现出高准确度.
  • 在610m附近观察到6.9E-07 kg/m2s的最大湿沉积值.
  • 该研究确定了冷却塔排放中的显著颗粒/液滴负载,沉积发生在特定的高度.

结论:

  • XJCT-3D为冷却塔羽毛散射提供了一个比传统的CFD软件更有效,更具视觉信息性的替代方案.
  • 研究结果提供了关于冷却塔排放对环境和健康的潜在影响的关键见解.
  • 结果支持制定有针对性的缓解策略,以尽量减少周边地区沉积风险.