的微型发电机的基于人工智能的形状优化:探索曲表面的好处
Hussam Alhussein1, Ahmed S Dalaq2, Mohammed Daqaq3
1Division of Engineering, New York University Abu Dhabi, Abu Dhabi, UAE. haa385@nyu.edu.
Scientific reports
|January 17, 2024
概括
研究人员优化了的车身形状,用于的微型发电机 (GMPGs). 曲的形形状在稳定流动中表现出色,而方形形状最适合波动的条件,确保高效的发电.
科学领域:
- 流体动力学 流体动力学
- 机械工程 机械工程 机械工程
- 可再生能源是可再生的能源.
背景情况:
- 流动微型发电依赖于的不稳定性.
- 优化模糊的车身形状对于狂奔的微型发电机 (GMPGs) 是至关重要的.
- 关键性能指标包括低切入速度,大振荡和快速短暂响应.
研究的目的:
- 为了确定GMPG的最佳模糊的身体形状.
- 为了提高稳态和瞬态性能.
- 为了研究形状的连续性,以便广泛适用.
主要方法:
- 利用计算流体动力学 (CFD) 和机器学习.
- 研究了一种形状连续体,其前/后面面和曲的侧面是可变的.
- 进行风洞实验以验证发现.
主要成果:
- 一个曲的形悬崖体,侧面曲率高,前背比率高,是稳定流动的最佳选择.
- 一个方形的悬崖体,侧面曲率高,为波动的流量提供最短的上升时间.
- 理论预测被实验证实.
结论:
- 形状优化显著影响了GMPG的性能.
- 不同的流量条件需要不同的最佳悬崖体几何形状.
- CFD和ML为空气动力学形状优化提供了强大的工具.
相关概念视频
Maximum Power Transfer
261
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
By substituting the entire circuit with...
261
Ampere-Maxwell's Law: Problem-Solving
631
A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
631
Generator Voltage Control
155
Generator voltage control is crucial for maintaining the stable operation of synchronous generators and wind turbines. In older models, a DC generator driven by the rotor delivers DC power to the rotor's field winding, and the power is transferred through slip rings and brushes. In the latest models, static or brushless exciters are used. Static exciters rectify AC power from the generator terminals and then transfer the DC power directly to the rotor. Brushless exciters, on the other hand,...
155
Power Expended by a Constant Force
7.6K
The relationship between work done and the time taken to do it can be explained using the concept of power. For example, several sprinters in a race may have the same velocity when they reach the finish line, therefore doing the same amount of work, but the winner does it in the least amount of time. Thus, power is defined as the rate of doing work. Since work can vary as a function of time, the average power is defined as the work done during a time interval, divided by the time interval.
7.6K
Hydrostatic Pressure Force on a Curved Surface
1.8K
Hydrostatic pressure on curved surfaces is a fundamental concept in fluid mechanics with broad applications in the civil engineering field. When fluid is in contact with a curved surface, as in a reservoir, dam, or storage tank, it exerts pressure that varies in magnitude and direction along the curved surface. To assess the total hydrostatic force exerted by the fluid on a curved structure, engineers typically isolate the fluid volume adjacent to the surface and analyze the forces acting on...
1.8K
Ampere's Law: Problem-Solving
3.6K
Ampere's law states that for any closed looped path, the line integral of the magnetic field along the path equals the vacuum permeability times the current enclosed in the loop. If the fingers of the right hand curl along the direction of the integration path, the current in the direction of the thumb is considered positive. The current opposite to the thumb direction is considered negative.
Specific steps need to be considered while calculating the symmetric magnetic field distribution...
Specific steps need to be considered while calculating the symmetric magnetic field distribution...
3.6K


