CFD-PREDICTED ROTORDYNAMIC CHARACTERISTICS OF A HIGH TEMPERATURE SODIUM LIQUID SEAL

Tong Wang; Pingwei Chen; Wensheng Ma; Guangbin Yu

doi:10.15632/JTAM-PL/150588

CFD-PREDICTED ROTORDYNAMIC CHARACTERISTICS OF A HIGH TEMPERATURE SODIUM LIQUID SEAL

Tong Wang
, Pingwei Chen^*
, Wensheng Ma
, Guangbin Yu

^*Corresponding author for this work

School of Mechatronics Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Rotordynamic characteristics of a high temperature sodium liquid (HTSL) seal were studied in this paper by using CFD software. Compared with the water liquid seal, the HTSL seal has a larger leakage flow rate and a lower drag power loss. The HTSL seal has a larger direct stiffness coefficient and the effective stiffness coefficient K_eff is also larger than the water liquid seal, which means the HTSL seal has a better stiffness capacity. The HTSL seal possesses a positive effective damping coefficient C_eff in the whole whirling frequency range, which means better stability for the rotor system especially in high rotor speeds.

Original language	English
Pages (from-to)	347-360
Number of pages	14
Journal	Journal of Theoretical and Applied Mechanics
Volume	60
Issue number	3
DOIs	https://doi.org/10.15632/JTAM-PL/150588
State	Published - 2022

Keywords

CFD
multi-frequency whirling model
rotordynamic characteristics
sodium liquid seal

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10.15632/JTAM-PL/150588

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title = "CFD-PREDICTED ROTORDYNAMIC CHARACTERISTICS OF A HIGH TEMPERATURE SODIUM LIQUID SEAL",

abstract = "Rotordynamic characteristics of a high temperature sodium liquid (HTSL) seal were studied in this paper by using CFD software. Compared with the water liquid seal, the HTSL seal has a larger leakage flow rate and a lower drag power loss. The HTSL seal has a larger direct stiffness coefficient and the effective stiffness coefficient Keff is also larger than the water liquid seal, which means the HTSL seal has a better stiffness capacity. The HTSL seal possesses a positive effective damping coefficient Ceff in the whole whirling frequency range, which means better stability for the rotor system especially in high rotor speeds.",

keywords = "CFD, multi-frequency whirling model, rotordynamic characteristics, sodium liquid seal",

author = "Tong Wang and Pingwei Chen and Wensheng Ma and Guangbin Yu",

year = "2022",

doi = "10.15632/JTAM-PL/150588",

language = "英语",

volume = "60",

pages = "347--360",

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issn = "1429-2955",

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TY - JOUR

T1 - CFD-PREDICTED ROTORDYNAMIC CHARACTERISTICS OF A HIGH TEMPERATURE SODIUM LIQUID SEAL

AU - Wang, Tong

AU - Chen, Pingwei

AU - Ma, Wensheng

AU - Yu, Guangbin

PY - 2022

Y1 - 2022

N2 - Rotordynamic characteristics of a high temperature sodium liquid (HTSL) seal were studied in this paper by using CFD software. Compared with the water liquid seal, the HTSL seal has a larger leakage flow rate and a lower drag power loss. The HTSL seal has a larger direct stiffness coefficient and the effective stiffness coefficient Keff is also larger than the water liquid seal, which means the HTSL seal has a better stiffness capacity. The HTSL seal possesses a positive effective damping coefficient Ceff in the whole whirling frequency range, which means better stability for the rotor system especially in high rotor speeds.

AB - Rotordynamic characteristics of a high temperature sodium liquid (HTSL) seal were studied in this paper by using CFD software. Compared with the water liquid seal, the HTSL seal has a larger leakage flow rate and a lower drag power loss. The HTSL seal has a larger direct stiffness coefficient and the effective stiffness coefficient Keff is also larger than the water liquid seal, which means the HTSL seal has a better stiffness capacity. The HTSL seal possesses a positive effective damping coefficient Ceff in the whole whirling frequency range, which means better stability for the rotor system especially in high rotor speeds.

KW - CFD

KW - multi-frequency whirling model

KW - rotordynamic characteristics

KW - sodium liquid seal

UR - https://www.scopus.com/pages/publications/85152483141

U2 - 10.15632/JTAM-PL/150588

DO - 10.15632/JTAM-PL/150588

M3 - 文章

AN - SCOPUS:85152483141

SN - 1429-2955

VL - 60

SP - 347

EP - 360

JO - Journal of Theoretical and Applied Mechanics

JF - Journal of Theoretical and Applied Mechanics

IS - 3

ER -

CFD-PREDICTED ROTORDYNAMIC CHARACTERISTICS OF A HIGH TEMPERATURE SODIUM LIQUID SEAL

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Keywords

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