non-scouring velocity

简明释义

不冲涮流速

英英释义

例句

1.In designing the dam, we must consider the non-scouring velocity to prevent erosion.

在设计大坝时，我们必须考虑非冲刷速度以防止侵蚀。

2.The river's non-scouring velocity was determined to protect the fish spawning areas.

河流的非冲刷速度被确定为保护鱼类产卵区。

3.The engineering team calculated the non-scouring velocity to ensure sediment stability in the riverbed.

工程团队计算了非冲刷速度以确保河床的沉积物稳定性。

4.Engineers must ensure that the non-scouring velocity is maintained during floods.

工程师必须确保在洪水期间保持非冲刷速度。

5.Monitoring the non-scouring velocity helps maintain aquatic habitats.

监测非冲刷速度有助于维护水生栖息地。

作文

In the field of fluid mechanics and sediment transport, the term non-scouring velocity refers to the minimum flow velocity required to prevent sediment particles from being entrained into the water column. Understanding this concept is crucial for engineers and environmental scientists who design waterways, manage river systems, and maintain aquatic habitats. When the flow velocity exceeds this threshold, sediment begins to move, which can lead to erosion and changes in the riverbed structure. Conversely, if the flow velocity falls below the non-scouring velocity (即非冲刷流速), sediment remains settled on the bottom, allowing for the development of stable habitats for various aquatic organisms.The implications of non-scouring velocity are significant in many practical applications. For instance, in the construction of dams and levees, engineers must consider this velocity to ensure that sediment does not accumulate excessively in certain areas, which could compromise the structure's integrity. Similarly, in the context of river restoration projects, understanding the non-scouring velocity can help in designing channels that promote healthy ecosystems while preventing excessive erosion.Moreover, the concept is also essential in the management of reservoirs. When water is released from a dam, it is vital to maintain a flow rate that respects the non-scouring velocity to protect the downstream environment. If the flow is too strong, it can lead to scouring of the riverbed, which may displace fish populations and destroy habitats. On the other hand, a flow that is too weak may result in sedimentation, which can reduce the reservoir's capacity and affect water quality.Research has shown that different sediment types have varying non-scouring velocities (即非冲刷流速). For example, fine sediments like silt and clay require lower velocities to remain settled compared to coarse sands. This variability highlights the importance of conducting site-specific studies to determine the appropriate flow conditions for maintaining ecological balance.Furthermore, climate change poses additional challenges in managing non-scouring velocity. As precipitation patterns shift and extreme weather events become more frequent, rivers may experience fluctuations in flow that can exceed or fall below the non-scouring velocity. These changes can disrupt established ecosystems and lead to increased erosion or sedimentation, necessitating adaptive management strategies.In conclusion, the concept of non-scouring velocity plays a vital role in the fields of hydrology and environmental science. It serves as a guiding principle for sustainable waterway design, sediment management, and habitat conservation. By understanding and applying this concept, we can better protect our aquatic ecosystems and ensure the longevity of our water resources for future generations.

在流体力学和沉积物运输领域，术语非冲刷流速指的是防止沉积物颗粒被卷入水柱所需的最低流速。理解这一概念对于设计水道、管理河流系统和维护水生栖息地的工程师和环境科学家至关重要。当流速超过这个阈值时，沉积物开始移动，这可能导致侵蚀和河床结构的变化。相反，如果流速低于非冲刷流速（即非冲刷流速），沉积物将保持在底部，从而允许各种水生生物的稳定栖息地的发展。非冲刷流速的影响在许多实际应用中是显著的。例如，在大坝和堤坝的建设中，工程师必须考虑这一流速，以确保沉积物不会在某些区域过度积累，从而危及结构的完整性。同样，在河流恢复项目的背景下，理解非冲刷流速可以帮助设计促进健康生态系统并防止过度侵蚀的水道。此外，该概念在水库管理中也至关重要。当从大坝释放水时，保持一个尊重非冲刷流速的流量以保护下游环境是至关重要的。如果流量过强，可能会导致河床冲刷，从而可能使鱼类种群迁移并破坏栖息地。另一方面，流量如果过弱，则可能导致沉积，从而减少水库的容量并影响水质。研究表明，不同类型的沉积物具有不同的非冲刷流速（即非冲刷流速）。例如，细沉积物如淤泥和粘土需要较低的流速才能保持沉降，而粗砂则需要更高的流速。这种变异性突显了进行特定地点研究以确定适当流动条件以维持生态平衡的重要性。此外，气候变化给管理非冲刷流速带来了额外挑战。随着降水模式的变化和极端天气事件的频率增加，河流可能经历流量波动，可能超过或低于非冲刷流速。这些变化可能会破坏既定的生态系统，导致侵蚀或沉积的增加，从而需要适应性管理策略。总之，非冲刷流速的概念在水文学和环境科学领域发挥着重要作用。它作为可持续水道设计、沉积物管理和栖息地保护的指导原则。通过理解和应用这一概念，我们可以更好地保护我们的水生生态系统，并确保我们的水资源在未来几代人中的可持续性。