velocimetry

简明释义

英[vɪˈlɒsɪmɛtri]美[vəˈlɑsəˌmɛtri]

n. [力] 速度测量学

英英释义

单词用法

同义词

反义词

例句

1.A laser Doppler velocimetry system is designed, and its theoretical analysis and computation are made.

本文设计了一套激光多普勒测速系统，并对该系统作了理论分析和计算。

2.Wereley used particle image velocimetry to estimate the amount of spewing from the pipe.

Werley曾经使用粒子图像测速技术去预测从管道中泄漏出的原油总量。

3.In this paper, it is tested that the surface velocity fields of the planar casting water simulation using the Digital Particle Image Velocimetry technology DPIV.

采用粒子图像测速技术对平板类铸件浇注过程水模拟的充型自由表面速度场进行了测试分析。

4.Digital Particle Image Velocimetry (DPIV) is a technology for fast, full field velocity measurement.

粒子图像测速是一种快速全流场测量方法。

5.The particle image velocimetry (PIV) is an effective and non-intrusive technique to measure the planar distribution of velocity in the fluid based on the cross-correlation of flow images.

PIV技术是一种基于流场图像互相关分析的二维流场非接触式测试技术。

6.Methods fetal non-stress test combined with fetal umbilical artery doppler velocimetry were used in 200 late pregnant women.

方法联合应用胎心无负荷试验（NST）及多普勒脐动脉血流速度测定对2 0 0例妊娠晚期孕妇进行观察。

7.The latest advancements in velocimetry technology allow for real-time monitoring of blood flow in medical applications.

最新的速度测量法技术进步使得在医学应用中能够实时监测血流。

8.The use of velocimetry in fluid dynamics helps researchers measure the flow velocity of liquids accurately.

在流体动力学中使用速度测量法可以帮助研究人员准确测量液体的流动速度。

9.In meteorology, velocimetry is essential for tracking wind speeds and patterns during storms.

在气象学中，速度测量法对于追踪风速和暴风雨期间的风向模式至关重要。

10.The aerospace industry relies on velocimetry to assess airflow over aircraft wings during wind tunnel tests.

航空航天工业依赖于速度测量法来评估风洞测试中气流在飞机机翼上的流动情况。

11.Using laser velocimetry, scientists can obtain high-resolution measurements of gas flows in combustion engines.

利用激光速度测量法，科学家可以获得燃烧发动机中气体流动的高分辨率测量值。

作文

In the field of fluid dynamics, understanding the flow of fluids is essential for various applications, from engineering to environmental studies. One crucial technique used to measure and analyze fluid motion is known as velocimetry. This term refers to the methods employed to determine the velocity of fluid particles at different points in a flow field. The concept of velocimetry is not only limited to liquids but can also be applied to gases, making it a versatile tool in both research and industry.The importance of velocimetry can be seen in its applications across multiple disciplines. For instance, in aerospace engineering, measuring the airflow around aircraft is vital for optimizing design and ensuring safety. Engineers utilize velocimetry techniques such as Particle Image Velocimetry (PIV) to visualize and quantify the flow patterns around wings and fuselages. This non-intrusive method allows for real-time analysis of the fluid flow, providing valuable data that can lead to improved aerodynamic performance.In addition to aerospace, velocimetry plays a significant role in environmental science. Researchers often study river currents and oceanic flows to understand sediment transport and pollutant dispersion. By employing velocimetry methods, scientists can gather data on water velocity, which is crucial for developing models that predict ecological impacts. This information helps in managing water resources and protecting aquatic ecosystems.Moreover, the medical field has also benefited from velocimetry. Techniques like Doppler ultrasound use the principles of velocimetry to measure blood flow in patients. By analyzing the frequency shift of sound waves as they bounce off moving red blood cells, healthcare professionals can assess cardiovascular health and diagnose potential issues. This application highlights how velocimetry can bridge the gap between engineering and medicine, showcasing its interdisciplinary relevance.The advancements in technology have significantly enhanced the capabilities of velocimetry. Modern tools and software allow for high-speed data acquisition and complex flow analysis, making it easier for researchers to visualize and interpret fluid dynamics. For example, laser-based velocimetry techniques can provide detailed measurements in turbulent flows, which were previously challenging to capture accurately. This progress has opened new avenues for research and innovation, pushing the boundaries of what is possible in fluid mechanics.Despite its many advantages, velocimetry does come with challenges. The accuracy of measurements can be affected by factors such as seeding particles in PIV or the presence of noise in Doppler systems. Researchers must carefully consider these variables to ensure reliable results. Furthermore, the interpretation of velocimetry data requires a strong understanding of fluid dynamics principles, emphasizing the need for interdisciplinary collaboration among scientists and engineers.In conclusion, velocimetry is a pivotal technique in the study of fluid motion, with applications spanning various fields including aerospace, environmental science, and medicine. Its ability to provide precise measurements of fluid velocity makes it an invaluable tool for researchers and professionals alike. As technology continues to evolve, the methods of velocimetry will undoubtedly advance, leading to new discoveries and innovations that can benefit society as a whole. Understanding and mastering velocimetry is essential for anyone interested in the dynamic behavior of fluids, and its significance will only grow in the future.

在流体动力学领域，理解流体的流动对于各种应用至关重要，从工程到环境研究。用于测量和分析流体运动的一种关键技术被称为速度测量法。这个术语指的是用于确定流场中不同点的流体粒子速度的方法。速度测量法的概念不仅限于液体，还可以应用于气体，使其成为研究和工业中一种多功能的工具。速度测量法的重要性可以在其跨多个学科的应用中看到。例如，在航空航天工程中，测量飞机周围的气流对于优化设计和确保安全至关重要。工程师利用如粒子图像速度测量法（PIV）等速度测量法技术来可视化和量化机翼和机身周围的流动模式。这种非侵入性方法允许对流体流动进行实时分析，提供有价值的数据，可以导致提高空气动力学性能。除了航空航天之外，速度测量法在环境科学中也发挥着重要作用。研究人员经常研究河流和海洋流动，以了解沉积物运输和污染物扩散。通过采用速度测量法方法，科学家可以收集水流速度的数据，这对于开发预测生态影响的模型至关重要。这些信息有助于管理水资源和保护水生生态系统。此外，医疗领域也从速度测量法中受益。多普勒超声等技术利用速度测量法的原理来测量患者的血流。通过分析声波在移动红细胞上反弹时的频率变化，医疗专业人员可以评估心血管健康并诊断潜在问题。这一应用强调了速度测量法如何弥合工程与医学之间的差距，展示了其跨学科的相关性。科技的进步显著增强了速度测量法的能力。现代工具和软件允许高速数据采集和复杂的流动分析，使研究人员更容易可视化和解释流体动力学。例如，基于激光的速度测量法技术可以提供湍流中的详细测量，而这些测量以前很难准确捕捉。这一进展为研究和创新开辟了新的途径，推动了流体力学的可能性。尽管有许多优点，但速度测量法确实面临挑战。测量的准确性可能会受到如PIV中的种子颗粒或多普勒系统中噪声存在等因素的影响。研究人员必须仔细考虑这些变量，以确保可靠的结果。此外，速度测量法数据的解释需要对流体动力学原理有深入的理解，强调了科学家和工程师之间跨学科合作的必要性。总之，速度测量法是研究流体运动的关键技术，应用于航空航天、环境科学和医学等多个领域。它提供精确的流体速度测量，使其成为研究人员和专业人士不可或缺的工具。随着技术的不断发展，速度测量法的方法无疑会进步，导致新的发现和创新，造福整个社会。理解和掌握速度测量法对于任何对流体动态行为感兴趣的人来说至关重要，其重要性在未来只会增加。