Rotordynamic-Coefficient and Leakage Characteristics for Hole-Pattern-Stator Annular Gas SealsMeasurements Versus Predictions Academic Article

abstract

• Selected test results are presented for an annular gas seal using a smooth rotor and a hole-pattern-roughness stator for a supply pressure of 70 bar, three pressure ratios, three speeds up to 20,000 rpm, two clearances, and three preswirl ratios. Dynamic data include frequency-dependent direct and cross-coupled stiffness and damping coefficients. Static data include leakage and upstream and downstream pressures and temperatures. Very good agreements are found between measurements and predictions from a two-control-volume bulk-flow model.

authors

• Childs, Dara

published proceedings

• Journal of Tribology

altmetric score

• 3

author list (cited authors)

• Childs, D. W., & Wade, J.

citation count

• 53

complete list of authors

• Childs, Dara W||Wade, Jonathan

publication date

• April 2004

publisher

• ASME International  Publisher

published in

• Journal of Tribology  Journal

Digital Object Identifier (DOI)

• 10.1115/1.1611502

start page

• 326

end page

• 333

volume

• 126

issue

• 2

URL

• http://dx.doi.org/10.1115/1.1611502