基于决策树的循环冲压喷气机的通风效率模型
Diksha Puri1, Daeho Lee2, Dhananjay Vasant Khankal3
1School of Environmental Science, Shoolini University, Solan 173229, Himachal Pradesh, India.
ACS omega
|October 30, 2023
概括
软计算模型在水文研究中准确地预测了通风效率. M5P模型在使用圆形俯冲喷气机预测通风效率方面表现出卓越的表现.
科学领域:
- 水文学的水文学
- 环境工程 环境工程
- 水资源管理 水资源管理
背景情况:
- 软计算技术在水文研究中越来越多地被使用.
- 透气效率是水质管理中的一个关键参数.
- 预测通风效率对于优化通风系统至关重要.
研究的目的:
- 为了预测使用圆形俯冲喷气机的通风效率 (E20).
- 为了比较减少错误修剪树 (REPTree),随机森林 (RF) 和M5P模型的性能.
- 为此预测任务确定最有效的软计算技术.
主要方法:
- 使用63个实验数据点开发和验证软计算模型.
- 输入变量包括通道倾斜角 (α),喷射数 (J),排放量 (Q),液压半径 (HR) 和弗罗德数 (Fr. 没有).没有.
- 空气效率 (E20) 是输出变量;模型性能使用相关系数 (CC),根-平均-平方误差 (RMSE) 和平均绝对误差 (MAE) 来评估.
主要成果:
- 所有测试的软计算技术 (REPTree,RF,M5P) 显示出良好的预测能力,相关系数> 0.8.8.
- 在预测通风效率方面,M5P模型表现出最高的准确性.
- M5P实现了0.9564的相关系数,低MAE (0.0143) 和RMSE (0.0193) 的相关系数.
结论:
- 软计算模型,特别是M5P,是预测水文系统中通风效率的有效工具.
- M5P模型提供了一种可靠和准确的方法,用于预测圆形跳喷气系统的通风效率.
- 这项研究有助于软计算应用在水资源管理和环境工程方面的进步.
相关概念视频
Free Jet
173
Free jets describe the flow of liquid exiting a reservoir through an opening into the atmosphere without resistance. The velocity (v) of the liquid jet is derived using Bernoulli's principle and expressed as:
173
Design Example: Creating a Hydraulic Model of a Dam Spillway
207
Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.
207
Typical Model Studies
365
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
365
Design Example: Design of an Irrigation Channel
109
Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
109
Turbulent Flow: Problem Solving
142
Carbonation is a process used to dissolve carbon dioxide gas in a liquid, commonly used in the production of carbonated beverages. Achieving efficient carbonation requires careful control of temperature, pressure, and flow conditions. By adjusting these parameters, carbonation efficiency can be maximized, producing a higher concentration of CO2 in the liquid.
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures...
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures...
142
Laminar Flow: Problem Solving
197
Laminar flow occurs when a fluid moves smoothly in parallel layers with minimal mixing and turbulence. In fluid mechanics, ensuring laminar flow within a pipe is essential for precise control of flow characteristics, especially in engineering applications. The key factor in determining whether flow remains laminar is the Reynolds number, a dimensionless quantity that depends on the fluid's velocity, density, viscosity, and the pipe's diameter. A Reynolds number of 2100 or lower...
197


