hull resistance

简明释义

船身阻力

英英释义

例句

1.In rough seas, increased hull resistance can lead to higher fuel consumption.

在波涛汹涌的海面上，增加的水阻力可能导致更高的燃料消耗。

2.To improve fuel efficiency, engineers focus on reducing hull resistance during the vessel's construction.

为了提高燃油效率，工程师们在船只建造过程中专注于减少水阻力。

3.The design of the ship's hull significantly affects its hull resistance, which is the force opposing its movement through water.

船体的设计显著影响其水阻力，这是反对其在水中运动的力量。

4.The hull resistance can be minimized by optimizing the shape of the hull.

通过优化船体的形状，可以最小化水阻力。

5.Hydrodynamic modeling helps predict the hull resistance of new ship designs.

水动力模型可以帮助预测新船设计的水阻力。

作文

In the field of naval architecture and marine engineering, the term hull resistance refers to the resistance encountered by a ship's hull as it moves through water. This resistance is a critical factor in determining the efficiency and performance of a vessel. Understanding hull resistance is essential for designers and engineers as they strive to create ships that are not only fast but also fuel-efficient and environmentally friendly.The concept of hull resistance can be broken down into several components, including frictional resistance, wave-making resistance, and residual resistance. Frictional resistance arises due to the viscosity of the water and the surface roughness of the hull. As the ship moves, water flows over its surface, creating friction that opposes its motion. Wave-making resistance occurs when the hull generates waves in the water, which requires energy and contributes to the overall resistance faced by the ship. Residual resistance is a combination of both frictional and wave-making resistance and is particularly significant at higher speeds.One of the primary goals in ship design is to minimize hull resistance. This can be achieved through various means, such as optimizing the shape of the hull, using advanced materials, and applying coatings that reduce friction. For instance, a streamlined hull shape can significantly reduce wave-making resistance, allowing the vessel to glide more smoothly through the water. Additionally, the use of lightweight materials can decrease the overall weight of the ship, further enhancing its speed and efficiency.The importance of minimizing hull resistance extends beyond just performance; it also has economic and environmental implications. Ships that experience lower resistance require less power to maintain their speed, which translates to reduced fuel consumption. This not only lowers operating costs for shipping companies but also decreases greenhouse gas emissions, contributing to a more sustainable maritime industry.Moreover, advancements in technology have enabled engineers to use computational fluid dynamics (CFD) to simulate and analyze hull resistance. CFD allows for detailed examination of how water interacts with the hull, providing valuable insights that can inform design choices. By utilizing these simulations, designers can experiment with different hull shapes and configurations without the need for extensive physical testing, saving both time and resources.In conclusion, hull resistance plays a pivotal role in the design and operation of marine vessels. A thorough understanding of this concept allows engineers to create ships that are faster, more efficient, and environmentally friendly. As the maritime industry continues to evolve, the focus on reducing hull resistance will remain paramount, driving innovation and sustainability in ship design and operation.

在海军建筑和海洋工程领域，短语hull resistance指的是船体在水中移动时遇到的阻力。这种阻力是决定船舶效率和性能的关键因素。理解hull resistance对于设计师和工程师至关重要，因为他们努力创造出不仅快速而且燃料高效、环保的船只。hull resistance的概念可以分解为几个组成部分，包括摩擦阻力、波浪产生阻力和残余阻力。摩擦阻力是由于水的粘度和船体表面的粗糙度引起的。当船舶移动时，水流过其表面，产生与运动相对的摩擦。波浪产生阻力发生在船体产生水面波浪时，这需要能量并增加船舶面临的总体阻力。残余阻力是摩擦阻力和波浪产生阻力的组合，在高速行驶时尤其显著。船舶设计的主要目标之一是最小化hull resistance。这可以通过多种方式实现，例如优化船体形状、使用先进材料和应用减少摩擦的涂层。例如，流线型的船体形状可以显著减少波浪产生阻力，使船舶更平稳地滑过水面。此外，使用轻质材料可以降低船舶的整体重量，进一步提高其速度和效率。减少hull resistance的重要性不仅限于性能；它还具有经济和环境影响。经历较低阻力的船只需要更少的动力来维持速度，这意味着减少燃料消耗。这不仅降低了航运公司的运营成本，而且减少了温室气体排放，为更加可持续的海事产业做出了贡献。此外，技术的进步使得工程师能够使用计算流体动力学（CFD）来模拟和分析hull resistance。CFD允许详细检查水如何与船体相互作用，提供有价值的见解以指导设计选择。通过利用这些模拟，设计师可以在不需要大量物理测试的情况下实验不同的船体形状和配置，从而节省时间和资源。总之，hull resistance在海洋船舶的设计和操作中发挥着关键作用。对这一概念的透彻理解使工程师能够创造出更快、更高效和环保的船舶。随着海事行业的不断发展，减少hull resistance的关注将继续是首要任务，推动船舶设计和操作的创新与可持续发展。