Spunbond capacity and uses continue to grow worldwide. The spunbond process is filled with fluid and gas flow operations. Affordable Computational Fluid Dynamics (CFD) software which runs on an ordinary PC has become an essential tool for the developers, designers, and users of spunbond machinery. CFD can substantially reduce "cut and try" experimentation, and difficult measurements. With CFD, one can quickly visualize what is happening, and can change and optimize component design before cutting metal. This paper provides several examples of CFD application, with emphasis on the compressed-air powered aspirator, a widely-used device for stretching the melt-spun filaments and forming the continuous fabric.
展开▼
