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Fluid Pressure over Flat Plate of Variable Width01:02

Fluid Pressure over Flat Plate of Variable Width

1.8K
When a flat plate is submerged in a fluid, the fluid exerts pressure on the plate. This pressure can lead to many different phenomena, including drag and buoyancy. To understand the behavior of the fluid over a flat plate of variable width, it is essential to analyze the distribution of the pressure exerted.
The pressure distribution on the plate can be calculated by determining the force that acts on a differential area strip of the plate. Thus, the magnitude of the force is equal to the...
1.8K
Fluid Pressure over Flat Plate of Constant Width01:05

Fluid Pressure over Flat Plate of Constant Width

2.2K
When a body is submerged in water, it experiences fluid pressure acting normal on its surface and distributed over its area. For better design structures, it is crucial to determine the magnitude and location of the resultant force acting on the surface. In the case of a rectangular plate of constant width submerged in water, the pressure increases with depth, resulting in a linearly varying trapezoidal pressure distribution from the upper to the lower edge of the plate.
The resultant force...
2.2K
Fluid Pressure over Curved Plate of Constant Width01:12

Fluid Pressure over Curved Plate of Constant Width

1.7K
When a curved plate of constant width is submerged in a liquid, the pressure acting normal to the plate varies continuously both in magnitude and direction. Calculating the magnitude and location of the resultant force at a point is often challenging for such cases. One of the methods to determine the resultant force and its location involves separately calculating the horizontal and vertical components of the resultant force. This complex calculation can be simplified by representing the...
1.7K
Steady, Laminar Flow Between Parallel Plates01:17

Steady, Laminar Flow Between Parallel Plates

349
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.
349
Ampere-Maxwell's Law: Problem-Solving01:17

Ampere-Maxwell's Law: Problem-Solving

771
A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
771
Two-Dimensional Force System: Problem Solving01:29

Two-Dimensional Force System: Problem Solving

683
Solving problems related to two-dimensional force systems is an essential aspect of mechanics and engineering. By applying the principles of vector analysis and force equilibrium, one can determine the effect of multiple forces acting on an object in a two-dimensional space.
The first step to solving a two-dimensional force system problem is to draw a free-body diagram of the object under consideration. This diagram helps identify all the external forces acting on the object, including their...
683

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相关实验视频

Updated: Sep 18, 2025

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
08:54

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

Published on: February 13, 2018

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基于电容器的平行板可变风压传感器:封闭式解决方案和数值设计和校准.

Xiao-Ting He1,2,3, Jun-Song Ran1, Jing-Miao Yin1

  • 1School of Civil Engineering, Chongqing University, Chongqing 400045, China.

Sensors (Basel, Switzerland)
|June 27, 2025
PubMed
概括

这项研究引入了一种新的电容风压传感器. 它通过检测风变形膜的电容变化来准确测量风压,为风传感应用提供了新的设计.

关键词:
电容传感器是一种传感器.封闭形式的溶液.数字校准的数字校准.数字设计数字设计.平行板变量电容的平行板变量电容测量风压的方法

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Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
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Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions

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The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe
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The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe

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相关实验视频

Last Updated: Sep 18, 2025

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
08:54

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

Published on: February 13, 2018

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Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
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Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions

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The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe
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The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe

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科学领域:

  • 机械工程 机械工程
  • 传感器技术 传感器技术
  • 流体动力学 流体动力学

背景情况:

  • 风压测量对于各种应用至关重要.
  • 现有的传感器在准确性或设计上可能存在局限性.
  • 研究一种使用电容传感的新方法.

研究的目的:

  • 提出并分析基于平行板变电容的风压传感器.
  • 为传感器的性能开发一种分析解决方案.
  • 调查设计参数对传感器输出的影响.

主要方法:

  • 使用风驱动的圆膜作为压力敏感元件.
  • 采用弹重置平行板可变电容器作为传感元件.
  • 在没有小旋转角假设的情况下,分析地解决弹性接触问题.

主要成果:

  • 为弹性接触问题得出了一个封闭式的解决方案.
  • 在输入压力和输出电容之间建立了分析关系.
  • 解决方案的有效性及其在设计和校准中的应用得到了证明.

结论:

  • 拟议的电容风压传感器为风压检测提供了一种可行的方法.
  • 由此衍生出的分析模型有助于传感器的设计和校准.
  • 了解参数效应可以优化传感器性能.