A rotordynamic analysis of an annular honeycomb seal using a two-control volume model Academic Article uri icon


  • Basic equations are derived for an annular honeycomb gas seal based on a two-control volume model. The two-control volume model includes additionally a transient radial velocity component at a porous honeycomb stator surface while a conventional one-control volume model takes only the axial and the circumferential velocity components in a seal. By using a perturbation analysis and a numerical integration method, the basic equations are solved to yield the force and the corresponding dynamic coefficients developed by the seal. The two-control volume model analysis is compared to both the one-control volume model and experimental results. The comparisons show that the two-control volume analysis generally improves the predictions of rotordynamic coefficients, especially, for direct damping. © 1996 The Korean Society of Mechanical Engineers (KSME).

author list (cited authors)

  • Ha, T. W., & Childs, D. W.

citation count

  • 2

publication date

  • September 1996