A computational fluid dynamic-based method for analyzing the nonlinear relationship between windage loss and pressure in a geotechnical centrifuge

Autor: Yi-Nan Guo, Yi Yang, Jun-Xiang Yu, De Ding, Ya-Lin Wang
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: SN Applied Sciences, Vol 3, Iss 10, Pp 1-16 (2021)
Druh dokumentu: article
ISSN: 2523-3963
2523-3971
89207939
DOI: 10.1007/s42452-021-04775-2
Popis: Abstract Temperature control is an important limitation to further increase in geotechnical centrifuge power. Although vacuum pumps can reduce windage loss, they also negatively affect heat transfer performance. Therefore, in this study, we aim to accurately determine the rate at which windage loss decreases with pressure to help assess whether reducing pressure is beneficial to temperature control. A computational fluid dynamic method based on the multi-reference model and k–ω shear-stress transport turbulence model is used to simulate the ZJU400gt geotechnical centrifuge. The windage loss and temperature of ZJU400 at 0–150 gravity acceleration under normal pressure conditions are simulated. Compared with the experimental data, the error is
Databáze: Directory of Open Access Journals
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