结构和流场的特点在自制同流化喷水喷嘴口中
Chenhao Guo1, Xing Dong2, Haorong Song2
1School of Safety Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China.
Materials (Basel, Switzerland)
|January 11, 2025
概括
这项研究引入了一种新的双喷嘴系统,用于增强化喷水清洁. 创新的设计实现了超过95%的蒸汽体积,证明了可持续涂层去除的有效性.
科学领域:
- 工程 工程师 工程师 工程师
- 流体动力学 流体动力学
- 材料科学 材料科学 材料科学
背景情况:
- 洞化喷水技术为清洁和涂层去除提供了一种可持续的方法.
- 喷嘴设计对于优化大气条件下的空洞化性能至关重要.
- 现有的方法需要改进以提高效率.
研究的目的:
- 设计和评估一种新的双喷嘴同流化喷水喷嘴.
- 为了研究入口压力对流场特征和空洞化的影响.
- 分析化云的动态行为,以改善清洁应用.
主要方法:
- 采用了剪流化,器官管共振和喷气原理来设计喷嘴.
- 运用计算机流体动力学 (CFD) 与ANSYS流动用于模拟.
- 应用伪色成像技术来分析空洞化云的动态.
主要成果:
- 设计的喷嘴在各种进气压力下实现了超过95%的最大蒸汽体积百分比.
- 分析显示了洞穴形成的不同阶段:开始,发展,脱落和崩.
- 洞化云的动态变化周期被确定为1.5毫秒.
结论:
- 开发的同流化喷水喷嘴证明了有效的化生成.
- 这些发现支持了这种设计在有效和可持续的清洁和涂层去除方面的潜力.
- 进一步的研究可以为特定的工业应用优化喷嘴几何.
相关概念视频
Free Jet
121
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:
121
Couette Flow
202
Couette flow represents the flow of fluid between two parallel plates, with one plate fixed and the other moving with a constant velocity. This configuration allows for a simplified analysis using the Navier-Stokes equations, which govern fluid motion under conditions of viscosity and incompressibility. For Couette flow, the assumptions include a steady, laminar, incompressible flow with a zero-pressure gradient in the flow direction. This flow type is beneficial for understanding shear-driven...
202
General External Flow Characteristics
96
The study of external flow is essential for creating structures and objects that interact efficiently and safely with moving fluids, such as air or water. When a body is immersed in a flowing fluid, it experiences two primary forces: drag, which opposes motion along the flow direction, and lift, which acts perpendicular to the flow. The shape, size, and orientation of the object influence these forces.Streamlined and Blunt Bodies in External FlowObjects in fluid flow are classified as...
96
Steady, Laminar Flow Between Parallel Plates
130
Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
130
Steady, Laminar Flow in Circular Tubes
145
Hagen-Poiseuille flow describes a viscous fluid's steady, incompressible flow through a cylindrical tube with a constant radius R. This flow profile is often applied to understand fluid transport in narrow channels, such as capillaries. It serves as a foundational example of laminar flow. In this model, cylindrical coordinates (r,θ,z) are used to describe the radial (r), angular (θ), and axial (z) dimensions within the tube. For Hagen-Poiseuille flow, the velocity profile is...
145
General Characteristics of Pipe Flow I
702
Pipe flow refers to the movement of fluids within fully enclosed conduits, typically cylindrical in shape, such as water pipes or hydraulic hoses. These conduits are designed to withstand high-pressure gradients that drive fluid movement, contrasting with open-channel flows, where gravity is the primary driving force. Rectangular conduits, like air conditioning and heating ducts, generally operate at lower pressures and are less suited for high-pressure applications.
The classification of fluid...
The classification of fluid...
702


