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RISDiscussion of “Non-Axisymmetric Flows and Rotordynamic Forces in an Eccentric Shrouded Centrifugal Compressor—Part 1: Measurement” (Song, J., Kim, S., Park, T. C., Cha, B.-J., Lim, D. H., Hong, J. S., Lee, T. W., and Song, S. J., ASME J. Eng. Gas Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: My commendations to the authors for this long-awaited (and greatly needed) contribution regarding measured direct and cross-coupled stiffness (Kxy) coefficients of a centrifugal–compressor impeller. As noted by the authors, ...
Discussion of “Non-Axisymmetric Flows and Rotordynamic Forces in an Eccentric Shrouded Centrifugal Compressor—Part 2: Analysis” (Song, J., and Song S. J., ASME J. Eng. Gas Turbines Power, 141(11), p. 111015)
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: By comparisons to measurements, the bulk-flow model for flow in the impeller annulus appears to work well. Baskharone and Hensel [1] presented CFD predictions for flow in the leakage annulus of a pump impeller based on a ...
Behaviors of a Hole-Pattern Seal With Wet-Gas
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Hole-pattern (HP) seals are widely used in centrifugal compressors to control leakage. This paper investigates the behaviors of an HP with wet-gas mixtures. The mixture consists of oil and air with inlet liquid volume ...
Effects of Increased Tooth Clearance on the Performance of a Labyrinth Seal With Oil-Rich Bubbly Laminar Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In recent years, multiphase pumps have become more and more popular because of the capability to simplify the process, reduce the footprint, and lower the cost. To compensate for the axial thrust force, an annular seal is ...
A Study for Rotordynamic and Leakage Characteristics of a Long-Honeycomb Seal With Two-Phase, Mainly Air Mixtures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper investigates the impact of the oil (silicone oil PSF-5cSt) presence in the air on the leakage and rotordynamic characteristics of a long-honeycomb seal with length-to-diameter ratio L/D = 0.748 and diameter ...
Experimental Study on the Performance of a See-Through Labyrinth Seal With Two-Phase, Mainly-Liquid Mixtures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: With the increasing demand of the oil and gas industry, many pump companies are developing multiphase pumps, which can handle liquid–gas flow directly without separating the liquid from a mixed flow. The see-through labyrinth ...
Static and Rotordynamic Characteristics for a New Hole Pattern Annular Gas Seal Design Incorporating Larger Diameter Holes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To reduce manufacturing cost and time, a new largerdiameter holepattern seal incorporating hole diameters of 12.27 mm, versus prior hole diameters of 3.175 mm has been proposed. The 12.27 mm holediameter seal had ...
Comments on a Newly Identified Destabilizing Rotordynamic Mechanism Arising in Vertical Hydraulic Turbines and the Back Shrouds of Centrifugal Impellers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In three 2010 papers, Tsujimoto et al. (2010, “Moment Whirl Due to Leakage Flow in the Back Shroud Clearance of a Rotor,†Int. J. Fluid Mach. Syst., 3(3), pp. 235–244), Song et al. (2010, “Rotordynamic Instability ...
An Experimental Investigation of the Dynamic Performance of a Vertical Application Three Lobe Bearing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Dynamic performance test results are provided for a verticalapplication threelobe bearing, geometrically similar to a threelobe bearing tested by Leader et al. (2010, “Evaluating and Correcting Subsynchronous Vibration ...
An Experimental Study of the Load Orientation Sensitivity of Three Lobe Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Static and dynamic performance test results are provided for a threelobe bearing evaluated over the following range of radial staticload orientations (taken from the leading edge of the loaded pad): 0 deg, 20 deg, ...