注塑成型中填充阶段的数值建模和模拟方法:一篇评论
Markus Baum1, Denis Anders1, Tamara Reinicke2
1Group for Computational Mechanics and Fluid Dynamics, Cologne University of Applied Sciences (TH Köln), Steinmüllerallee 1, 51643 Gummersbach, Germany.
Polymers
|November 14, 2023
概括
本综述系统地对模拟注塑成型填充阶段的数值方法进行了分类. 它强调了学模型及其取决于温度的粘度,这对于准确的聚合物加工预测至关重要.
科学领域:
- 材料科学与工程 材料科学与工程
- 计算流体动力学的流体动力学.
- 聚合物加工 聚合物加工
背景情况:
- 注塑模拟对于预测产品质量至关重要.
- 填充阶段是复杂的,涉及多相流和非牛顿流体动力学.
- 对聚合物进行精确的学表征对于模拟准确性至关重要.
研究的目的:
- 系统地对模拟注塑成型填充阶段的数值方法进行分类.
- 提供用于聚合物流量模拟的风学模型的综合总结.
- 为了突出几何参数和温度依赖粘度的重要性.
主要方法:
- 对注射成型填充模拟现有文献的审查和综合.
- 探索各种风湿学模型,包括权力法,赫舍尔-布克利,卡罗和克罗斯模型.
- 分析模型扩展,考虑温度依赖的粘度.
主要成果:
- 注塑成型填充模拟的数值方法的系统分类.
- 详细检查多个风学模型及其温度依赖的扩展.
- 强调几何参数和填充动态之间的相互作用.
结论:
- 注塑成型填充阶段的精确模拟在很大程度上依赖于强大的类风学模型.
- 该分类有助于理解和选择适合学术和工业应用的模型.
- 这项工作有助于改善注塑成型过程的预测和优化.
相关概念视频
Typical Model Studies
363
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.
363
Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving
57
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
57
Modeling and Similitude
270
Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
270


