Structural optimization and flow field analysis of turbomolecular pump based on a new performance prediction algorithm-Reference-Cited by-同舟云学术

Structural optimization and flow field analysis of turbomolecular pump based on a new performance prediction algorithm

Published:2024-06-03 Issue:1 Volume:14 Page:
ISSN:2045-2322
Container-title:Scientific Reports
language:en
Short-container-title:Sci Rep

Author:

Sun Kun,Deng Haishun,Wang Cheng,Zhang Shiwei

Abstract

AbstractIn the present study, a new turbomolecular pump (TMP) performance prediction algorithm is proposed according to the variable surface combined blade row (VSCBR) geometric model. The simulation calculation program is designed to perform structural optimization and flow field analysis. Research on the pumping performance of the traditional straight blade row (TSBR) indicates that when the blade velocity ratio is greater than 1, the increase in the pumping speed and compression ratio of the TMP gradually tends to stabilize. Response surface methodology is used to optimize the structural parameters of the first four stages of the combined blade row. The optimized VSCBR increases the pumping speed by 18.2% compared to that of the TSBR. The flow field analysis based on the optimized VSCBR shows that gas molecules reaching the rear blades are likely to approach the outlet, and the proportion of gas molecules in this region exceeds 50%. Therefore, the blades we designed should be conducive to additional gas molecules reaching the outlet.

Funder

National Natural Science Foundation of China

Natural Science Research Project of Anhui Educational Committee

Start-up Fund for the High-level Introduced Talents of Anhui University of Science and Technology

the Excellent Research and Innovation Team of Anhui Province

Publisher

Springer Science and Business Media LLC

Link

https://www.nature.com/articles/s41598-024-63690-9.pdf

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