stagnation temperature

简明释义

驻点温度

英英释义

例句

1.The aircraft's performance is significantly affected by the stagnation temperature (滞止温度) during ascent.

在爬升过程中，飞机的性能受到滞止温度（滞止温度）的显著影响。

2.In supersonic flows, the stagnation temperature (滞止温度) can be much higher than the static temperature.

在超音速流动中，滞止温度（滞止温度）可能远高于静态温度。

3.Engine efficiency can be optimized by monitoring the stagnation temperature (滞止温度) in the combustion chamber.

通过监测燃烧室中的滞止温度（滞止温度），可以优化发动机效率。

4.To calculate the aerodynamic heating, engineers must consider the stagnation temperature (滞止温度) at the leading edge.

为了计算空气动力加热，工程师必须考虑前缘的滞止温度（滞止温度）。

5.The stagnation temperature (滞止温度) is crucial for understanding the thermodynamic properties of the flow.

了解流动的热力学特性时，滞止温度（滞止温度）至关重要。

作文

In the field of fluid dynamics and thermodynamics, the concept of stagnation temperature plays a crucial role in understanding how fluids behave under various conditions. The stagnation temperature is defined as the temperature a fluid would reach if it were brought to rest adiabatically, meaning without any heat exchange with the surroundings. This concept is essential in applications such as aerospace engineering, where understanding the behavior of air around an aircraft at high speeds is vital.When an aircraft flies at high velocities, the air compresses and heats up due to the kinetic energy of the moving fluid. At this point, the stagnation temperature becomes significant because it represents the maximum temperature that can be achieved by the air if it were decelerated to zero velocity without losing any energy to the environment. This principle is derived from the conservation of energy, specifically the first law of thermodynamics.The stagnation temperature can be calculated using the equation:T0 = T + (V^2 / (2 * Cp))where T0 is the stagnation temperature, T is the static temperature of the fluid, V is the flow velocity, and Cp is the specific heat capacity at constant pressure. This equation illustrates how the kinetic energy of the fluid contributes to its thermal energy when the fluid is brought to rest. Understanding stagnation temperature is not only important for aircraft design but also for various other engineering applications, including rocket propulsion and HVAC systems. In rocket engines, for instance, the stagnation temperature helps engineers determine the performance and efficiency of the engine by analyzing the combustion gases' behavior as they expand and accelerate through the nozzle.Moreover, in HVAC systems, knowing the stagnation temperature can assist in designing more efficient systems by predicting how air behaves at different velocities and temperatures. This knowledge allows engineers to optimize airflow and temperature control in buildings, leading to improved comfort and energy efficiency.In conclusion, the stagnation temperature is a fundamental concept in fluid dynamics that provides valuable insights into the behavior of fluids under varying conditions. Its applications span across multiple fields, from aerospace to mechanical engineering, highlighting its importance in both theoretical studies and practical applications. By mastering the concept of stagnation temperature, engineers and scientists can better predict and control fluid behavior, ultimately leading to advancements in technology and efficiency in various industries.

在流体动力学和热力学领域，停滞温度的概念在理解流体在各种条件下的行为中起着至关重要的作用。停滞温度被定义为如果流体在绝热条件下停止运动（即与周围环境没有热交换），它所达到的温度。这个概念在航空工程等应用中至关重要，因为理解高速飞行中空气的行为是非常重要的。当飞机以高速飞行时，空气由于流体的动能而被压缩并加热。在这一点上，停滞温度变得重要，因为它代表了空气在没有向环境失去任何能量的情况下，如果减速到零速度时可以达到的最高温度。这个原理源于能量守恒，特别是热力学第一定律。停滞温度可以通过以下公式计算：T0 = T + (V^2 / (2 * Cp))其中 T0 是停滞温度，T 是流体的静态温度，V 是流动速度，Cp 是在恒压下的比热容。这个公式说明了流体的动能如何在流体停止时转化为其热能。理解停滞温度不仅对飞机设计重要，对火箭推进和暖通空调系统等各种其他工程应用也同样重要。例如，在火箭发动机中，停滞温度帮助工程师通过分析燃烧气体在喷嘴中膨胀和加速的行为来确定发动机的性能和效率。此外，在暖通空调系统中，了解停滞温度可以通过预测空气在不同速度和温度下的行为来帮助设计更高效的系统。这种知识使工程师能够优化建筑中的气流和温控，从而提高舒适性和能源效率。总之，停滞温度是流体动力学中的一个基本概念，为流体在不同条件下的行为提供了宝贵的见解。它的应用跨越多个领域，从航空航天到机械工程，突显了其在理论研究和实际应用中的重要性。通过掌握停滞温度的概念，工程师和科学家可以更好地预测和控制流体行为，最终推动各个行业技术和效率的进步。