forced convection

简明释义

强制对流

英英释义

例句

1.The cooling of electronic devices often relies on forced convection to prevent overheating.

电子设备的冷却通常依赖于强制对流来防止过热。

2.In many heating systems, forced convection is used to distribute warm air throughout the building.

在许多供暖系统中，强制对流用于将温暖的空气分布到整个建筑中。

3.In a car radiator, forced convection helps to dissipate heat from the engine effectively.

在汽车散热器中，强制对流有助于有效地散发发动机的热量。

4.Industrial ovens utilize forced convection to ensure even baking of food products.

工业烤箱利用强制对流确保食品产品均匀烘烤。

5.In HVAC systems, forced convection is essential for maintaining indoor air quality.

在暖通空调系统中，强制对流对于维持室内空气质量至关重要。

作文

In the study of thermodynamics and fluid mechanics, one often encounters the term forced convection. This phenomenon refers to the process of heat transfer that occurs when a fluid is forced to flow over a surface or through a medium by an external force, such as a pump or a fan. Unlike natural convection, where the fluid motion is caused by buoyancy differences due to temperature variations, forced convection relies on mechanical means to enhance the movement of the fluid. Understanding this concept is crucial for various applications in engineering, environmental science, and even everyday life.The significance of forced convection can be observed in numerous industrial processes. For instance, in heating, ventilation, and air conditioning (HVAC) systems, forced convection plays a vital role in regulating indoor temperatures. By using fans to circulate air, these systems ensure that warm or cool air reaches all corners of a room efficiently. This not only improves comfort but also enhances energy efficiency, as it allows for more uniform temperature distribution.Another area where forced convection is essential is in cooling systems for electronic devices. As electronic components generate heat during operation, effective heat dissipation is necessary to prevent overheating and ensure optimal performance. Here, forced convection is employed to move air across heat sinks or cooling fins, thereby increasing the rate of heat transfer away from the components. Fans or blowers are commonly used in these applications to facilitate the flow of air, demonstrating how forced convection is integral to modern technology.Moreover, forced convection is also relevant in the food industry, particularly in cooking processes. When baking or roasting food, the use of convection ovens utilizes forced convection to circulate hot air around the food. This results in more even cooking and browning, as well as reduced cooking times compared to traditional methods. The concept exemplifies how forced convection not only improves efficiency but also enhances the quality of the final product.Understanding the principles behind forced convection involves recognizing several key factors that influence its effectiveness. The rate of heat transfer in forced convection is affected by the velocity of the fluid, the properties of the fluid itself (such as viscosity and thermal conductivity), and the characteristics of the surface over which the fluid flows. Engineers and scientists often use empirical correlations and computational fluid dynamics (CFD) simulations to predict the behavior of forced convection in various scenarios, allowing for optimized designs in systems ranging from industrial reactors to residential heating systems.In conclusion, forced convection is a fundamental concept in the field of heat transfer that has far-reaching implications across multiple disciplines. Its applications in HVAC systems, electronic cooling, and culinary practices highlight its importance in enhancing efficiency and performance. By grasping the principles of forced convection, one can appreciate the intricate relationships between fluid dynamics and thermal management, paving the way for innovations that improve our daily lives and technological advancements. As we continue to explore and understand these principles, the potential for new applications and improvements in existing technologies remains vast and exciting.

在热力学和流体力学的研究中，人们经常会遇到“强制对流”这个术语。这个现象是指当流体由于外部力量（如泵或风扇）被迫在表面或介质上流动时发生的热传递过程。与自然对流不同，后者是由于温度变化引起的浮力差异导致的流体运动，“强制对流”则依赖机械手段来增强流体的运动。理解这一概念对于工程、环境科学甚至日常生活中的各种应用至关重要。“强制对流”的重要性可以在许多工业过程中观察到。例如，在供暖、通风和空调（HVAC）系统中，“强制对流”在调节室内温度方面发挥着至关重要的作用。通过使用风扇来循环空气，这些系统确保温暖或凉爽的空气有效地到达房间的每个角落。这不仅提高了舒适度，还增强了能效，因为它允许更均匀的温度分布。“强制对流”另一个重要领域是在电子设备的冷却系统中。随着电子元件在运行过程中产生热量，有效的散热是防止过热并确保最佳性能所必需的。在这里，“强制对流”被用来使空气流过散热器或冷却鳍片，从而增加从组件中转移热量的速率。风扇或鼓风机在这些应用中常被使用，展示了“强制对流”在现代技术中的重要性。此外，“强制对流”在食品工业中也相关，特别是在烹饪过程中。当烘焙或烤制食物时，使用对流烤箱利用“强制对流”在食物周围循环热空气。这导致比传统方法更均匀的烹饪和上色，以及缩短的烹饪时间。这个概念例证了“强制对流”不仅提高了效率，还增强了最终产品的质量。理解“强制对流”背后的原理涉及认识几个影响其有效性的关键因素。“强制对流”中的热传递速率受流体速度、流体本身的性质（如粘度和导热性）以及流体流过的表面的特征的影响。工程师和科学家通常使用经验关系和计算流体动力学（CFD）模拟来预测“强制对流”在各种场景中的行为，从而优化工业反应器到住宅供暖系统的设计。总之，“强制对流”是热传递领域的一个基本概念，在多个学科中具有深远的影响。它在HVAC系统、电子冷却和烹饪实践中的应用突显了它在提高效率和性能方面的重要性。通过掌握“强制对流”的原理，人们可以欣赏流体动力学与热管理之间的复杂关系，为改善我们日常生活和技术进步的创新铺平道路。随着我们继续探索和理解这些原理，新的应用和改善现有技术的潜力仍然广阔而令人兴奋。