... flow rate by about 40% but barely changes the test seal's rotordynamic coefficients, i.e., the increased tooth clearance would not change the pump vibration performance. Subscripts g = gas component l = liquid component X, Y = X, and Y directions of the coordinate system...

... will also be presented to compare with test results under different flow conditions. e-mail:  hitzhangmin@gmail.com e-mail:  dchilds@tamu.edu 08 07 2021 09 07 2021 27 09 2021 smooth seal multiphase pump flow regime rotordynamic coefficients leakage Smooth annular...

... dynamic stiffness, the bulk-flow model of San Andrés (2012, “Rotordynamic Force Coefficients of Bubbly Mixture Annular Pressure Seals,” ASME J. Eng. Gas Turbines Power, 134(2), p. 022503) predicts decently the tendencies and magnitudes of the rotordynamic coefficients. Predictions show an insignificant...

... on the performance (leakage and rotordynamic coefficients) of a see-through labyrinth seal under mainly gas conditions. This paper continues Zhang and Childs (2019) (Zhang, M., and Childs, D., 2019, “A Study on the Leakage and Rotordynamic Performance of a Long Labyrinth Seal Under Mainly-Air Conditions,” ASME J...

... leakage and therefore increase the machine efficiency. However, reducing C r can also introduce undesired effects on the machine's vibration behaviors. This paper experimentally studies the impact of reducing C r on the leakage and rotordynamic coefficients of a 16-tooth see-through labyrinth seal under...

...–331) is used to calculate the rotordynamic coefficients developed by the labyrinth seals in the compressor stage and also provides a boundary condition for the shroud calculations. Comparisons between the measured shroud moment coefficients by Yoshida et al. (1996, Proceedings of the 6th International...

... (stoppers) rotordynamic coefficients rotor stability impeller-shroud forces magnetic-bearing exciter Reinjection compressors, used to inject natural gas into oil wells at pressures ranging from 100 to 700 bar, have traditionally created rotordynamic challenges due to high pressure...