pressure ratio

简明释义

压力比

英英释义

例句

1.To optimize performance, we need to increase the pressure ratio 压力比 of the turbocharger.

为了优化性能，我们需要提高涡轮增压器的压力比 pressure ratio。

2.In gas turbines, the pressure ratio 压力比 is a key parameter for performance assessment.

在燃气涡轮中，压力比 pressure ratio 是性能评估的关键参数。

3.The pressure ratio 压力比 in this system affects the overall thermal efficiency.

该系统中的压力比 pressure ratio 影响整体热效率。

4.A higher pressure ratio 压力比 can lead to more power output from the compressor.

更高的压力比 pressure ratio 可以使压缩机输出更多的功率。

5.The engine's pressure ratio 压力比 is crucial for determining its efficiency.

发动机的压力比 pressure ratio 对于确定其效率至关重要。

作文

The concept of pressure ratio is fundamental in various fields of engineering, particularly in thermodynamics and fluid mechanics. The pressure ratio is defined as the ratio of the pressure at one point in a system to the pressure at another point. This ratio is crucial for understanding how fluids behave under different conditions, especially when they are compressed or expanded. In simple terms, it helps engineers determine how much pressure change occurs as a fluid moves through a system, such as a gas turbine or a compressor.For instance, in the case of a jet engine, the pressure ratio between the inlet and outlet of the compressor stage plays a significant role in determining the engine's efficiency and thrust. A higher pressure ratio typically indicates that the engine can produce more thrust with less fuel, which is a desirable characteristic in aerospace applications. Engineers strive to optimize this pressure ratio to enhance performance while minimizing environmental impact.Moreover, the pressure ratio is not only relevant in aerospace but also in HVAC (heating, ventilation, and air conditioning) systems. In these systems, maintaining an optimal pressure ratio is essential for ensuring efficient airflow and temperature control. If the pressure ratio is too low, it can lead to insufficient cooling or heating, whereas a pressure ratio that is too high may cause unnecessary strain on the system components.Understanding the pressure ratio also aids in the design of various equipment, such as pumps and fans. Engineers use this ratio to predict performance characteristics and to select appropriate materials that can withstand the pressures involved. For example, in centrifugal pumps, the pressure ratio helps in determining the pump's ability to lift fluids against gravitational forces, which is critical in applications ranging from water supply to chemical processing.In addition to practical applications, the pressure ratio has theoretical implications in the study of compressible flow. When analyzing the behavior of gases at high speeds, the pressure ratio becomes a key parameter in predicting shock waves and expansion fans. These phenomena are vital in supersonic flight and influence the design of high-speed vehicles.In conclusion, the pressure ratio is a pivotal concept in engineering that impacts various applications across multiple industries. By understanding and optimizing the pressure ratio, engineers can design more efficient systems that save energy and resources while improving performance. As technology continues to advance, the importance of mastering the pressure ratio will only grow, making it an essential topic for students and professionals alike. Ultimately, whether in aerospace, HVAC, or fluid dynamics, the pressure ratio remains a key factor in driving innovation and efficiency in engineering solutions.

“压力比”这一概念在工程的多个领域中是基础性的，尤其是在热力学和流体力学中。“压力比”定义为系统中某一点的压力与另一点的压力之比。这个比率对于理解流体在不同条件下的行为至关重要，特别是在流体被压缩或膨胀时。简单来说，它帮助工程师确定当流体在系统中移动时，压力变化的程度，例如在燃气涡轮机或压缩机中。例如，在喷气发动机的情况下，压缩机阶段入口和出口之间的“压力比”在确定发动机的效率和推力方面起着重要作用。较高的“压力比”通常表明发动机可以以更少的燃料产生更多的推力，这是航空航天应用中的一种理想特性。工程师努力优化这个“压力比”，以提高性能，同时最小化对环境的影响。此外，“压力比”不仅在航空航天中相关，在HVAC（供暖、通风和空调）系统中也同样重要。在这些系统中，保持最佳的“压力比”对于确保有效的气流和温度控制至关重要。如果“压力比”过低，可能导致制冷或制热不足，而如果“压力比”过高，则可能对系统组件造成不必要的压力。理解“压力比”还有助于各种设备的设计，例如泵和风扇。工程师利用这一比率来预测性能特征，并选择能够承受所涉及压力的合适材料。例如，在离心泵中，“压力比”有助于确定泵提升流体克服重力的能力，这在从供水到化工处理的应用中都是关键的。除了实际应用外，“压力比”在可压缩流动研究中的理论意义也很重要。当分析高速气体的行为时，“压力比”成为预测冲击波和膨胀波的关键参数。这些现象在超音速飞行中至关重要，并影响高速车辆的设计。总之，“压力比”是工程中一个关键的概念，影响着多个行业的各种应用。通过理解和优化“压力比”，工程师可以设计出更高效的系统，从而节省能源和资源，同时提高性能。随着技术的不断进步，掌握“压力比”的重要性只会增加，使其成为学生和专业人士必不可少的主题。最终，无论是在航空航天、HVAC还是流体动力学中，“压力比”仍然是推动工程解决方案创新和效率的关键因素。