通过子域分区方法在2D矩形容器中进行液体排放的等效分析模型,具有多个垂直分离器
Ying Sun1, Xun Meng2, Zhong Zhang1
1School of Transportation and Civil Engineering, Nantong University, Nantong, China.
Scientific reports
|June 5, 2024
概括
这项研究提出了一种同等的分析模型,用于在混容器中的液体排放. 该模型简化了复杂的流体动力学,使得在各种条件下能够高效地分析水行为.
科学领域:
- 流体动力学 流体动力学
- 机械工程 机械工程
- 结构分析 结构分析
背景情况:
- 液体在容器中的流可以诱导显著的动力力.
- 混通常用于抑制流失,但其分析是复杂的.
- 现有的模型可能无法完全捕捉困惑系统的行为.
研究的目的:
- 开发一种同等的分析模型,用于在具有多个垂直波段的2D刚性矩形容器中进行冲压.
- 建立一个简化的质量弹模型,复制原始系统的水力动力切割和翻转时刻.
- 为了研究波形参数和液体高度对流行为的影响.
主要方法:
- 子域分区方法来划分液体域.
- 分离变量来解决子域中的速度潜力.
- 连续性和自由表面条件的应用,以确定泥的特性.
- 模式直角性来导出在水平激发下控制运动方程.
- 通过匹配水力动力切削和翻转矩来开发一个相当的质量弹模型.
主要成果:
- 成功建立了一种类似的分析模型,用于在混容器中进行液体排放.
- 该模型通过匹配关键的水力动力学参数来准确地表示动态行为.
- 比较调查验证了开发方法的可行性和准确性.
- 这项研究提供了关于形位置,高度和液体水平如何影响流的见解.
结论:
- 拟议的同等分析模型提供了一种简化但准确的方法,用于分析混容器中的液体污水.
- 这种模型有助于有效地研究泥动态和几何参数的影响.
- 这些发现有助于改进容器和流体管理系统的设计,在这些情况下,缓解污染至关重要.
相关概念视频
Steady, Laminar Flow Between Parallel Plates
172
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.
172
Control Volume and System Representations
1.2K
Two key frameworks are employed to analyze mass, energy, and momentum transfer: the control volume approach and the system approach. These frameworks offer different perspectives, depending on whether the focus is on a specific region in space (control volume approach) or a defined mass of fluid (system approach).
The control volume approach considers a stationary region in space through which fluid flows. This region is bounded by a control surface. For instance, in the case of water...
The control volume approach considers a stationary region in space through which fluid flows. This region is bounded by a control surface. For instance, in the case of water...
1.2K
Typical Model Studies
354
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.
354
Accelerating Fluids
1.0K
When a fluid is in constant acceleration, the pressure and buoyant force equations are modified. Suppose a beaker is placed in an elevator accelerating upward with a constant acceleration, a. In the beaker, assume there is a thin cylinder of height h with an infinitesimal cross-sectional area, ΔS.
The motion of the liquid within this infinitesimal cylinder is considered to obtain the pressure difference. Three vertical forces act on this liquid:
The motion of the liquid within this infinitesimal cylinder is considered to obtain the pressure difference. Three vertical forces act on this liquid:
1.0K
Design Example: Creating a Hydraulic Model of a Dam Spillway
159
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.
159
Couette Flow
244
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...
244


