bare-hull resistance

简明释义

裸体阻力

英英释义

例句

1.Understanding bare-hull resistance is crucial for naval architects when designing efficient vessels.

理解裸壳阻力对于海军建筑师设计高效船只至关重要。

2.To enhance performance, the team worked on minimizing the bare-hull resistance during testing.

为了提高性能，团队在测试中致力于最小化裸壳阻力。

3.The research focused on how different shapes affect the bare-hull resistance of ships.

研究集中在不同形状如何影响船只的裸壳阻力。

4.By reducing the bare-hull resistance, we can improve fuel efficiency significantly.

通过减少裸壳阻力，我们可以显著提高燃油效率。

5.The engineer calculated the bare-hull resistance to determine the optimal design for the new vessel.

工程师计算了裸壳阻力以确定新船的最佳设计。

作文

The concept of bare-hull resistance is crucial in the field of naval architecture and marine engineering. It refers to the resistance experienced by a ship's hull when it moves through water without any additional equipment or appendages, such as propellers, rudders, or other appendices that could alter its hydrodynamic properties. Understanding bare-hull resistance is essential for designers and engineers as it provides a baseline for evaluating the performance of a vessel. The resistance encountered by a hull is primarily due to two factors: frictional resistance and wave-making resistance. Frictional resistance arises from the interaction between the water and the surface of the hull. As a ship moves, the water molecules in contact with the hull experience shear stress, which creates friction. This type of resistance is influenced by the surface roughness of the hull material and the speed at which the vessel travels. A smoother hull will generally experience less frictional resistance, thus improving fuel efficiency and overall performance. On the other hand, wave-making resistance is generated when a ship moves through water, creating waves around it. This phenomenon occurs because the hull displaces water, resulting in the formation of waves that can increase resistance. The shape and design of the hull play a significant role in determining the magnitude of wave-making resistance. For instance, a well-designed hull that minimizes wave formation will have lower bare-hull resistance, allowing the vessel to travel more efficiently. Calculating bare-hull resistance is a vital step in the design process of any marine vessel. Engineers often use computational fluid dynamics (CFD) simulations and model testing in towing tanks to assess the resistance characteristics of various hull designs. By analyzing how different shapes and materials affect resistance, designers can optimize hull forms to achieve better performance and fuel efficiency. Moreover, understanding bare-hull resistance is not only important for new designs but also for retrofitting existing vessels. By evaluating the resistance of a ship’s hull, engineers can identify opportunities for improvements, such as hull cleaning or modifications to enhance hydrodynamics. This can lead to substantial savings in fuel costs and a reduction in greenhouse gas emissions, making it a critical consideration in the context of sustainable shipping practices. In conclusion, the study of bare-hull resistance is fundamental to the advancement of marine technology. It serves as a key indicator of a vessel's efficiency and performance, impacting everything from design choices to operational costs. As the maritime industry continues to evolve towards greater sustainability and efficiency, the importance of understanding and minimizing bare-hull resistance will only grow. Engineers and designers must remain vigilant in their efforts to innovate and improve hull designs, ensuring that they meet the demands of modern shipping while adhering to environmental standards.

“裸船体阻力”这一概念在海洋建筑和海洋工程领域至关重要。它指的是船体在没有任何附加设备或附属物（如螺旋桨、舵或其他可能改变其流体动力特性的附加装置）时，船体在水中移动所经历的阻力。理解“裸船体阻力”对设计师和工程师来说至关重要，因为它提供了评估船舶性能的基准。船体所遇到的阻力主要由两个因素决定：摩擦阻力和波浪产生阻力。摩擦阻力是由于水与船体表面之间的相互作用而产生的。当船只移动时，与船体接触的水分子会经历剪切应力，从而产生摩擦。这种类型的阻力受到船体材料表面粗糙度和船舶行驶速度的影响。更光滑的船体通常会经历较少的摩擦阻力，从而提高燃油效率和整体性能。另一方面，波浪产生阻力是在船舶通过水时产生的，当船舶移动时，会在周围形成波浪。这种现象发生是因为船体排开水，导致波浪的形成，从而增加阻力。船体的形状和设计在决定波浪产生阻力的大小方面起着重要作用。例如，设计良好的船体能够最小化波浪形成，将具有较低的“裸船体阻力”，从而使船舶能够更高效地航行。计算“裸船体阻力”是任何海洋船舶设计过程中的关键步骤。工程师们通常使用计算流体动力学（CFD）模拟和在拖曳水池中的模型测试来评估各种船体设计的阻力特性。通过分析不同形状和材料对阻力的影响，设计师可以优化船体形状，以实现更好的性能和燃油效率。此外，理解“裸船体阻力”不仅对新设计重要，而且对改造现有船舶也同样重要。通过评估船舶船体的阻力，工程师可以识别改进机会，例如清洁船体或修改以增强流体动力学。这可以显著节省燃料成本并减少温室气体排放，使其在可持续航运实践中成为一个关键考虑因素。总之，研究“裸船体阻力”是海洋技术发展的基础。它作为船舶效率和性能的关键指标，影响着从设计选择到运营成本的方方面面。随着海事行业不断向更大可持续性和效率发展，理解和最小化“裸船体阻力”的重要性只会增加。工程师和设计师必须保持警惕，不断努力创新和改进船体设计，确保他们满足现代航运的需求，同时遵守环境标准。