Computational Flow Analysis of a Cyclone Vacuum Cleaner

Date
2019-04-17
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Abstract

Computational flow analysis of a cyclone vacuum cleaner can provide valuable fluid mechanics information for efficient design and operation. The vacuum cleaner is made of multiple cones, each with a rotational flow field that facilitates the dust collection. Reliable computational analysis requires both accurate representation of the complex geometry and high-resolution representation of the boundary layers near the internal surfaces of the cones. We address these computational challenges with the Space–Time Variational Multiscale (ST-VMS) method and isogeometric discretization, using NURBS basis functions. The ST framework has higher-order accuracy in general, and the VMS feature of the ST-VMS addresses the challenge created by the turbulent nature of the flow. The isogeometric discretization provides a more accurate representation of the geometry and increased accuracy in the flow solution. We conduct our studies for both single-cone and multi-cone configurations, and the comparison of the results from the two helps us discern the reasonableness of using single-cone flow analysis in place of full-machine flow analysis.

Description
Degree
Master of Science
Type
Thesis
Keywords
Fluid Mechanics, Computational Fluid Mechanics,
Citation

Zhang, Yutong. "Computational Flow Analysis of a Cyclone Vacuum Cleaner." (2019) Master’s Thesis, Rice University. https://hdl.handle.net/1911/105402.

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