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首页> 外文会议>Annual technical conference and exposition of the American Filtration and Separations Society >Computational Flow Modeling In Filtration Industry: From Polymer Flows to Nonwoven Fabrics Making to Filtration Performance Analysis
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Computational Flow Modeling In Filtration Industry: From Polymer Flows to Nonwoven Fabrics Making to Filtration Performance Analysis

机译：过滤行业中的计算流量建模：从聚合物流到无纺布的过滤性能分析

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摘要

Performance of a filtration system depends greatly on placement of filters and filter fabrics quality. The latter aspect in turn depends on the upstream nonwoven production processes and equipment performance such as polymer mixing and flows in dies, air systems and fiber laydown. Computational Fluid Dynamics (CFD) provides a significant time and cost saving option for evaluating these upstream processes and equipment as well as the effect of filter placement and overall filtration performance. Application of CFD includes product design, process optimization, scale-up as well as troubleshooting. This is a technical review paper rendering the current status and successes of modeling in analyzing various processes and equipment from the nonwoven fabrics making to filtration performance. The focus is on the fluid flow aspects, including air, polymer and the fibers. We also report a series of airflow analyses that illustrates how computational approaches let the engineers explore various equipment designs and what-if scenarios without physical prototyping. These approaches also provide simulated field data in details beyond the reach of standard experimental techniques. The commercial CFD software packages FLUENT and POLYFLOW by Fluent Incorporated are used for the analysis in this paper.
机译：过滤系统的性能大大依赖于放置过滤器和过滤织物质量。后一种方面又取决于上游的非织造生产方法和设备性能，例如聚合物混合和模具，空气系统和纤维衰减的流动。计算流体动力学（CFD）为评估这些上游工艺和设备以及过滤器放置和整体过滤性能的影响提供了大量时间和成本节省的选择。 CFD的应用包括产品设计，过程优化，缩放以及故障排除。这是一种技术审查纸，介绍了在从非织造织物的各种工艺和设备分析到过滤性能的各种工艺和设备时建模的现状和成功。重点是流体流动方面，包括空气，聚合物和纤维。我们还报告了一系列气流分析，说明了计算方法如何让工程师探索各种设备设计以及没有物理原型的场景。这些方法还提供了超出标准实验技术范围的详细信息的模拟现场数据。通过流利的CFD软件包流畅和多流放的流畅掺入本文用于分析。

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