weissenberg effect

简明释义

韦森堡效应

英英释义

The Weissenberg effect is a phenomenon observed in non-Newtonian fluids where, under certain conditions, the fluid's viscosity decreases with an increase in shear rate, leading to unexpected behavior such as the fluid climbing up the walls of a container.

Weissenberg效应是观察到的一种现象,发生在非牛顿流体中,在某些条件下,流体的粘度随着剪切速率的增加而减少,导致流体出现意外行为,例如流体沿着容器的壁爬升。

例句

1.The weissenberg effect is crucial in the design of equipment used for mixing and pumping viscous fluids.

在设计用于混合和泵送粘性流体的设备时,魏森伯效应至关重要。

2.During the experiment, the scientists noted the weissenberg effect as the liquid formed a stable jet instead of breaking up.

在实验过程中,科学家们注意到液体形成了一个稳定的喷流,而不是破裂,这就是魏森伯效应

3.The weissenberg effect can be observed when a fluid flows through a narrow channel, causing it to form filaments.

当流体通过狭窄通道时,可以观察到魏森伯效应,导致其形成细丝。

4.In polymer processing, engineers often encounter the weissenberg effect, which refers to the tendency of certain fluids to stretch and align under shear stress.

在聚合物加工中,工程师经常遇到魏森伯效应,指的是某些流体在剪切应力下伸展和排列的趋势。

5.Researchers studying non-Newtonian fluids focus on the weissenberg effect to understand how these materials behave under different flow conditions.

研究非牛顿流体的研究人员关注魏森伯效应,以理解这些材料在不同流动条件下的行为。

作文

The Weissenberg effect is a fascinating phenomenon observed in the field of rheology, which is the study of the flow of matter. This effect occurs when a non-Newtonian fluid, such as a polymer solution or a colloidal suspension, is subjected to shear stress. Unlike Newtonian fluids, which have a constant viscosity regardless of the applied stress, non-Newtonian fluids display a variable viscosity that can change depending on the conditions they are under. The Weissenberg effect specifically refers to the tendency of some non-Newtonian fluids to exhibit an increase in viscosity when subjected to high shear rates, leading to unexpected behaviors during processing and handling.Understanding the Weissenberg effect is crucial for industries that rely on the manipulation of complex fluids. For instance, in the food industry, the texture and consistency of products such as sauces and dressings depend heavily on the rheological properties of the ingredients used. If manufacturers do not account for the Weissenberg effect, they may encounter issues such as undesired thickening or thinning of their products, resulting in inconsistencies that can affect consumer satisfaction.In the field of materials science, the Weissenberg effect plays an essential role in the development of new materials. Researchers often study how different polymers behave under various shear conditions to create materials with specific properties. For example, in the production of paints and coatings, understanding the Weissenberg effect can help formulators design products that are easy to apply while still providing the desired finish and durability.Moreover, the Weissenberg effect is not limited to industrial applications; it also has implications in biological systems. Many biological fluids, such as blood, exhibit non-Newtonian behavior. The viscosity of blood can change under different flow conditions, which is critical for understanding circulation dynamics and the behavior of blood in medical scenarios. By studying the Weissenberg effect, scientists can gain insights into various medical conditions, such as thrombosis, where abnormal blood viscosity can lead to serious health risks.In conclusion, the Weissenberg effect serves as a reminder of the complexity of fluid behavior and its significance across multiple disciplines. Whether in manufacturing, materials science, or medicine, recognizing and understanding this effect enables professionals to optimize processes and improve product quality. As research continues to advance, the implications of the Weissenberg effect will undoubtedly expand, paving the way for innovations that harness the unique properties of non-Newtonian fluids to benefit society in various ways.

Weissenberg效应是流变学领域观察到的一种迷人现象,流变学是研究物质流动的科学。该效应发生在非牛顿流体(如聚合物溶液或胶体悬浮液)受到剪切应力时。与牛顿流体不同,牛顿流体的粘度在施加应力时保持不变,而非牛顿流体则表现出可变的粘度,具体取决于所处的条件。Weissenberg效应特别指的是某些非牛顿流体在高剪切速率下表现出粘度增加的倾向,导致在加工和处理过程中出现意想不到的行为。理解Weissenberg效应对于依赖复杂流体操作的行业至关重要。例如,在食品行业,酱料和调味品等产品的质地和一致性在很大程度上依赖于所用成分的流变特性。如果制造商不考虑Weissenberg效应,他们可能会遇到产品不必要的增稠或变稀的问题,从而导致消费者满意度下降。在材料科学领域,Weissenberg效应在新材料开发中发挥着重要作用。研究人员通常研究不同聚合物在各种剪切条件下的行为,以创建具有特定属性的材料。例如,在涂料和涂层的生产中,理解Weissenberg效应可以帮助配方师设计易于施用同时提供所需外观和耐久性的产品。此外,Weissenberg效应不仅限于工业应用;它在生物系统中也有影响。许多生物流体,如血液,表现出非牛顿行为。血液的粘度可以在不同流动条件下变化,这对理解循环动力学和医学场景中血液的行为至关重要。通过研究Weissenberg效应,科学家可以深入了解各种医学状况,例如血栓形成,其中异常的血液粘度可能导致严重的健康风险。总之,Weissenberg效应提醒我们流体行为的复杂性及其在多个学科中的重要性。无论是在制造、材料科学还是医学中,认识和理解这一效应使专业人士能够优化流程并提高产品质量。随着研究的不断进展,Weissenberg效应的影响无疑将扩大,为利用非牛顿流体的独特性质为社会带来各种益处铺平道路。