Testing of turbulent seals for rotordynamic coefficients. Academic Article uri icon


  • A facility has been developed for dynamic testing of straight and convergent tapered seals with the capability of measuring the radial and tangential force components which result from a circular centred orbit. The heat apparatus causes the seal journal to execute small eccentricity centred circular orbits within its clearance circle. Dynamic measurements are made and recorded of the seal displacement vector components, and of the pressure field. The pressure field is integrated to yield seal tangential and radial reaction force components. Representative test data are provided and discussed for straight seals. (A)

author list (cited authors)

  • Childs, D. W., & Dressman, J. B.

publication date

  • January 1982