Closure to “Discussion on â€کDamping and Inertia Coefficients for Two End Sealed Squeeze Film Dampers With a Central Groove: Measurements and Predictions,’â€‌ (2013, ASME Paper No. GT2013 94273).

Abstract

As per the question, “how can the magnitude of the groove effective depth be objectively selected knowing that the flow field is so complex?â€‌ the authors concur with Dr. Arghir's judgment, that is, one cannot ascertain the effective groove depth from simple knowledge of fluid mechanics. The effective depth depends not only on the geometry of the groove and adjacent film land but also on the lubricant properties and the operating conditions. That is, as stated in the original development analyses of Refs. [19,20] from the discussion, the effective groove depth is an empirical parameter to be determined from matching experimental results to predictions or extracted from a careful assessment of numerical predictions obtained from complete CFD simulations.