gross head

简明释义

总压头

英英释义

例句

1.A higher gross head indicates better sales performance in a business.

较高的毛收入表明企业的销售表现更好。

2.When calculating profits, it’s important to understand the difference between net income and gross head.

在计算利润时，了解净收入与毛收入之间的区别是很重要的。

3.The total revenue before any deductions is referred to as the gross head.

在任何扣除之前的总收入被称为毛收入。

4.In financial reports, the gross head provides a clear picture of overall earnings.

在财务报告中，毛收入清晰地展示了整体收益的情况。

5.Investors often look at the gross head to assess a company's performance.

投资者通常会关注毛收入来评估公司的业绩。

作文

In the world of engineering and fluid dynamics, the term gross head is frequently used to describe the total energy available in a fluid system. It is an essential concept for understanding how water flows through pipes, turbines, and other hydraulic systems. Essentially, gross head refers to the total vertical distance that water can fall, which translates into the potential energy it possesses due to gravity. This measurement is crucial for engineers when designing systems that rely on water flow, such as dams, water treatment plants, and hydroelectric power stations.To better understand gross head, we must first consider the components that contribute to it. The total head of a fluid system is made up of several factors: the elevation head, pressure head, and velocity head. The elevation head is the height of the fluid above a reference point, usually measured in meters. The pressure head accounts for the pressure exerted by the fluid, which can be significant in closed systems where pressure builds up. Lastly, the velocity head represents the kinetic energy of the fluid as it moves. When we combine these three components, we arrive at the gross head, which is the sum of all these energies acting on the fluid.The importance of gross head cannot be overstated. For instance, in hydroelectric power generation, the efficiency of the system largely depends on the gross head. A higher gross head means more potential energy is available to be converted into electrical energy. Engineers strive to maximize this measurement to ensure that their designs are effective and economically viable. Additionally, understanding gross head helps in predicting how much water can be transported through a system and at what rate, which is vital for irrigation, municipal water supply, and industrial applications.However, it is essential to differentiate between gross head and net head. While gross head encompasses the total energy available, net head refers to the actual energy that can be utilized for doing work after accounting for losses due to friction, turbulence, and other inefficiencies in the system. Understanding this distinction is crucial for engineers as they design and optimize fluid systems.In conclusion, the term gross head plays a pivotal role in the field of fluid dynamics and engineering. By understanding the components that contribute to it and its significance in various applications, engineers can design more efficient systems that harness the power of water effectively. Whether it’s for generating electricity or supplying water, grasping the concept of gross head is fundamental to the success of any hydraulic project. As we continue to innovate and improve our technologies, the principles surrounding gross head will remain indispensable in our quest for sustainable and efficient solutions to meet the world's growing needs for water and energy.

在工程和流体动力学的世界中，术语gross head常用于描述流体系统中的总能量。它是理解水如何通过管道、涡轮机和其他液压系统流动的一个重要概念。基本上，gross head指的是水可以下落的总垂直距离，这转化为由于重力而拥有的潜在能量。这个测量对于工程师在设计依赖于水流的系统（如大坝、水处理厂和水电站）时至关重要。为了更好地理解gross head，我们必须首先考虑构成它的几个组成部分。流体系统的总水头由几个因素组成：高程水头、压力水头和速度水头。高程水头是指流体相对于参考点的高度，通常以米为单位测量。压力水头则考虑了流体施加的压力，在封闭系统中，压力可能会显著增加。最后，速度水头代表流体移动时的动能。当我们将这三个组成部分结合起来时，就得到了gross head，即作用于流体的所有这些能量的总和。gross head的重要性不容小觑。例如，在水电发电中，系统的效率在很大程度上取决于gross head。更高的gross head意味着可用来转化为电能的潜在能量更多。工程师们努力最大化这一测量，以确保他们的设计有效且经济可行。此外，理解gross head有助于预测通过系统可以运输多少水以及以何种速度，这是灌溉、市政供水和工业应用的关键。然而，区分gross head和净水头是必要的。虽然gross head包含总能量，但净水头是指在考虑摩擦、湍流和系统其他非效率损失后，可以实际用于做功的能量。理解这一区别对于工程师在设计和优化流体系统时至关重要。总之，术语gross head在流体动力学和工程领域中扮演着关键角色。通过理解其组成部分及其在各种应用中的重要性，工程师可以设计出更高效的系统，有效利用水的力量。无论是发电还是供水，掌握gross head的概念对任何液压项目的成功都是基础。随着我们不断创新和改进技术，围绕gross head的原理将在我们寻求可持续和高效解决方案以满足全球日益增长的水和能源需求的过程中保持不可或缺。