CFD-predicted rotordynamic characteristics of a high temperature sodium liquid seal
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School of Mechanical and Powder Engineering, Harbin University of Science and Technology, Harbin, China
Chongqing Pump Industry, Chongqing, China
Harbin Engineering University, Harbin, China
Harbin Institute of Technology, Harbin, China
Submission date: 2022-03-18
Final revision date: 2022-05-05
Acceptance date: 2022-05-08
Online publication date: 2022-06-10
Publication date: 2022-07-30
Corresponding author
Pingwei Chen   

School of Mechanical and Powder Engineering, Harbin University of Science and Technology, 150080, Harbin, China
Journal of Theoretical and Applied Mechanics 2022;60(3):347-360
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.
Chen J., Zhang D.L., Song P., Wang X., Wang S., Liang Y., Qiu S.Z., Zhang Y., Wang M., Su G., 2018, CFD investigation on thermal-hydraulic behaviors of a wire-wrapped fuel subassembly for sodium-cooled fast reactor, Annals of Nuclear Energy, 113, 256-269.
Chen Y., Zhu R., Lu Y., Gao Z., Kang J., 2019, Study on flow field and rotor safety characteristics of MSPs based on flow thermo-coupling, Processes, 7, 10, 711.
Childs D., 2013, Turbomachinery Rotordynamics with Case Studies, Minter Spring Publishing, Wellborn, TX.
Dong B.B., 2013, Analysis on vibration characteristics of the primary sodium pump of China experimental fast reactor, Nuclear Science and Engineering, 33, 3, 231-237.
Feng J.T., 2003, Study of the China Experimental Sodium Pump Fault Diagnosis System (in Chinese), China Institute of Atomic Energy.
Huang S., Su X.H., Qiu G.Q., 2015, Transient numerical simulation for solid-liquid flow in a centrifugal pump by DEM-CFD coupling, Engineering Applications of Computational Fluid Mechanics, 9, 1, 411-418.
Iwatsubo T., Sheng B., 1990, Evaluation of dynamic characteristics parallel grooved annular seals by theory and experiment, Procedings of IFToMM Third International Conference on Rotordynamics, Lyon, France, 313-318.
Kim S.H., Ha T.W., 2016, Prediction of leakage and rotordynamic coefficients for the circumferential-groove-pump seal using CFD Analysis, Journal of Mechanical Science and Technology, 30, 5, 2037-2043.
Ko S., Kim Y.T., 2015, Numerical study on the main coolant pump of sodium-cooled fast reactor, Proceedings of ASME/JSME/KSME 2015 Joint Fluids Engineering Conference, Seoul, South Korea, 1A, 2.
Li Z.G., Fang Z., Li J., 2020, A comparison of static and rotordynamic characteristics for two types of liquid annular seals with parallelly grooved stator/rotor, Journal of Engineering for Gas Turbines and Power, 142, 9, 091012.
Marquette O., Childs D., 1996, An extended three-control-volume theory for circumferentially-grooved liquid seals, ASME Journal of Tribology, 118, 2, 276-285.
Moreland J.A., 2016, Influence of pre-swirl and eccentricity in smooth stator/grooved rotor liquid annular seals, static and rotordynamic characteristics, M.S. Thesis, Texas A&M University, College Station, TX.
Moreland J.A., Childs D., Bullock J., 2018, Measured static and rotordynamic characteristics of a smooth-stator/grooved-rotor liquid annular seal, ASME Journal of Fluid Engineering, 140, 10, 101109.
Pei S., Niu H.J., Hong J., 2020, Lubrication characteristics of hybrid bearing in sodium-cooled fast reactor (in Chinese), Journal of Mechanical Engineering, 56, 29-37.
Xia P., Liu Z.S., Yu X., Zhao J., 2018, A transient bulk flow model with circular whirl motion for rotordynamic coefficients of annular seals, Chinese Journal of Aeronautics, 31, 5, 1085-1094.
Xie Z.L., Rao Z.S., Ta N., 2018, Investigation on the lubrication regimes and dynamic characteristics of hydro-hybrid bearing of two-circuit main loop liquid sodium pump system, Annals of Nuclear Energy, 115, 220-232.
Xu M., Yang H.Y., 2016, Safety properties of sodium-cooled fast reactors (in Chinese), Physics, 45, 9, 561-568.
Yang H.Y., Liu Y.Z., Yang Y., et al., 2015, Technical progress of 600MW demonstration fast reactor (CFR600) (in Chinese), Annual Report of China Academy of Atomic Energy, 1, 42-46.
Zhai L.L., Zhu Z.C., Zhang Z.J., Guo J., Cui B.L., 2018, Theoretical solutions for dynamic characteristics of spiral-grooved liquid seals, Tribology Transactions, 62, 1, 22-33.
Zhang M., Wang X.F., Xu S.L., Wang W., 2013, Numerical simulation of the flow field in circumferential grooved liquid seals, Advances in Mechanical Engineering, 5.
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