基于欧勒-PBM合的高硫天然气收集管道的曲处硫颗粒聚合的数值模拟
Jingyi Huang1, Gang Liu2, Shishui Fan1
1College of Safety Engineering, Chongqing University of Science & Technology, Chongqing, 401331, China.
Scientific reports
|August 19, 2024
概括
天然气管道中的硫沉积导致流动不稳定. 这项研究揭示了管道曲中的硫颗粒聚合,确定了影响沉积的关键因素,以预测和减轻管道问题.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 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:
- 硫沉积加厚高硫天然气管道壁,导致流动不稳定.
- 了解硫颗粒聚合对于预测沉积位置和数量至关重要.
研究的目的:
- 建立气体固体双相流的数值模拟模型,在管道曲处聚合硫颗粒.
- 为了研究粒子体积分数,管道倾斜和流速对聚合物的行为的影响.
主要方法:
- 利用欧勒-欧勒和人口平衡模型 (PBM) 合用于数值模拟.
- 分析了气体固体双相流动力学和管道曲处的硫颗粒聚合.
主要成果:
- 大量的硫颗粒聚合发生在管道曲处,主要发生在顶壁附近.
- 增加的硫颗粒体积分数和管道倾斜增加了聚合,使颗粒尺寸分布扩大到187.56微米.
- 较高的入口流速削弱了聚合物,减少了最大颗粒大小.
结论:
- 该研究提供了关于天然气管道中的硫颗粒聚合动态的见解.
- 发现有助于预测和管理硫沉积,以确保管道的运行稳定性.
相关概念视频
Bending of Material: Problem Solving
173
In this lesson, determine the ratio of the maximum bending moments applied to two metal pipes, given that both pipes can withstand a maximum stress of 100 MPa. Both pipes have an outer radius of 1.8 cm. Pipe A has an inner radius of 1.5 cm, and Pipe B has an inner radius of 1 cm. The ratio of the maximum bending moment applied to two metallic pipes, each with a different inner and outer radius, is determined by considering their dimensions. The inner radius of the first pipe is 1.5 cm, and for...
173
Typical Model Studies
352
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.
352
Design Example: Flow of Oil Through Circular Pipes
114
Understanding fluid flow behavior through pipes is critical in fluid mechanics, especially in applications like oil transportation through pipelines. Hagen-Poiseuille's law provides an exact solution derived from the Navier-Stokes equations for steady, incompressible, and laminar flow within a circular pipe. Hagen-Poiseuille's law helps determine the necessary pressure drop across a pipeline section by determining parameters like pipe length, radius, oil viscosity, and the desired...
114
Application of the Linear Momentum Equation
72
The application of the linear momentum equation can be used to analyze the forces needed to hold a 180-degree pipe bend in place with flowing water. In this case, water flows through the bend with a constant cross-sectional area of 0.01 square meters and a flow velocity of 15 meters per second. The pressure at the entrance is 0.2 Megapascals and the pressure at the exit is 0.16 Megapascals.
The goal is to determine the force components in the x and y directions to hold the pipe in place. Since...
The goal is to determine the force components in the x and y directions to hold the pipe in place. Since...
72
Euler's Formula for Pin-Ended Columns
301
In structural engineering, the stability of columns under compressive axial loads is a critical consideration, described as buckling. A typical example involves a column PQ, which is pin-connected at both ends and subjected to a centric axial load F applied at one end, with a reaction force of F' = -F at the other end. Here, it is crucial to understand that when an applied load exceeds the critical load, buckling occurs as the system becomes unstable.
To calculate the critical load,...
To calculate the critical load,...
301
The Buckingham Pi Theorem
578
The Buckingham Pi theorem provides a structured method to simplify fluid dynamics problems by reducing complex systems of variables to dimensionless terms.
578


