non scouring velocity

简明释义

不冲刷临

英英释义

例句

1.Engineers calculated the non scouring velocity 非侵蚀流速 to ensure that the bridge foundations would not be undermined.

工程师计算了非侵蚀流速以确保桥梁基础不会被削弱。

2.A non scouring velocity 非侵蚀流速 is essential for protecting aquatic habitats from excessive erosion.

保持非侵蚀流速对保护水生栖息地免受过度侵蚀至关重要。

3.The design of the dam included features to ensure a non scouring velocity 非侵蚀流速 downstream.

大坝的设计包括确保下游有非侵蚀流速的特征。

4.In river engineering, it is crucial to maintain a non scouring velocity 非侵蚀流速 to prevent sediment erosion.

在河流工程中，保持非侵蚀流速是至关重要的，以防止沉积物侵蚀。

5.Monitoring the non scouring velocity 非侵蚀流速 helps in maintaining the ecological balance of the river.

监测非侵蚀流速有助于维持河流的生态平衡。

作文

In the field of hydraulic engineering, understanding the concept of non scouring velocity is crucial for maintaining the integrity of riverbanks and other water bodies. The term non scouring velocity refers to the flow velocity of water that is insufficient to dislodge sediment particles from the bed of a river or stream. This velocity is significant because it helps engineers determine the safe limits of water flow that will not cause erosion or sediment transport. Erosion can lead to various environmental problems, including habitat destruction, increased turbidity, and the loss of valuable land. Therefore, knowing the non scouring velocity is essential for designing effective flood control measures and preserving aquatic ecosystems.To better understand the implications of non scouring velocity, we must consider its relationship with sediment transport. When water flows over a surface, it exerts a shear stress on the sediment particles. If this shear stress exceeds a certain threshold, known as the critical shear stress, the particles will begin to move, leading to erosion. Conversely, if the flow velocity remains below the non scouring velocity, the sediment will remain in place, contributing to the stability of the riverbed.Engineers often use mathematical models to calculate the non scouring velocity for different types of sediment and flow conditions. These calculations take into account factors such as the size and shape of the sediment particles, the density of the water, and the characteristics of the riverbed. By accurately determining the non scouring velocity, engineers can design structures like levees and dams that minimize the risk of erosion.In addition to its importance in engineering, the concept of non scouring velocity also has implications for environmental science and ecology. For instance, maintaining flow velocities below this threshold can help preserve habitats for various aquatic species, including fish and invertebrates. Excessive erosion can lead to the destruction of spawning grounds and other critical habitats, ultimately threatening biodiversity.Moreover, understanding non scouring velocity can aid in the management of sediment in reservoirs and lakes. Sediment accumulation can reduce the capacity of these water bodies, impacting water quality and storage. By managing flow velocities to stay within the non scouring velocity range, water resource managers can help mitigate sedimentation issues, ensuring the longevity and functionality of these vital resources.In conclusion, the concept of non scouring velocity is integral to both hydraulic engineering and environmental management. By understanding and applying this principle, engineers and scientists can work together to protect our waterways from erosion, promote healthy ecosystems, and ensure the sustainable use of our natural resources. As we continue to face challenges related to climate change and human activity, the need for effective management strategies that incorporate the understanding of non scouring velocity will only become more pressing. It is essential for us to prioritize research and education in this area to safeguard our rivers and streams for future generations.

在水利工程领域，理解“非冲刷流速”的概念对于维护河岸和其他水体的完整性至关重要。术语“非冲刷流速”指的是水流速度不足以将沉积物颗粒从河流或溪流的床面上移走的流速。这个速度是重要的，因为它帮助工程师确定水流的安全限度，这些水流不会导致侵蚀或沉积物运输。侵蚀会导致各种环境问题，包括栖息地破坏、浑浊度增加和宝贵土地的丧失。因此，了解“非冲刷流速”对于设计有效的洪水控制措施和保护水生生态系统至关重要。为了更好地理解“非冲刷流速”的影响，我们必须考虑其与沉积物运输的关系。当水流过表面时，它对沉积物颗粒施加剪切应力。如果这种剪切应力超过某个阈值，即临界剪切应力，颗粒将开始移动，导致侵蚀。相反，如果流速保持在“非冲刷流速”以下，沉积物将保持在原位，从而有助于河床的稳定。工程师通常使用数学模型来计算不同类型沉积物和流动条件下的“非冲刷流速”。这些计算考虑了诸如沉积物颗粒的大小和形状、水的密度以及河床特征等因素。通过准确确定“非冲刷流速”，工程师可以设计出能够最大限度减少侵蚀风险的堤坝和大坝等结构。除了在工程中的重要性外，“非冲刷流速”的概念在环境科学和生态学中也有重要意义。例如，保持流速低于这一阈值可以帮助保护各种水生物种的栖息地，包括鱼类和无脊椎动物。过度侵蚀可能导致产卵场和其他关键栖息地的破坏，最终威胁到生物多样性。此外，了解“非冲刷流速”还可以帮助管理水库和湖泊中的沉积物。沉积物的积累会减少这些水体的容量，影响水质和储存。通过管理流速保持在“非冲刷流速”范围内，水资源管理者可以帮助减轻沉积问题，确保这些重要资源的持久性和功能性。总之，“非冲刷流速”的概念对于水利工程和环境管理都是不可或缺的。通过理解和应用这一原则，工程师和科学家可以共同努力保护我们的水道免受侵蚀，促进健康的生态系统，并确保我们自然资源的可持续利用。随着我们继续面临与气候变化和人类活动相关的挑战，融入对“非冲刷流速”理解的有效管理策略的需求将变得更加紧迫。我们必须优先进行这方面的研究和教育，以保护我们的河流和溪流，为子孙后代提供保障。