Experimental study of the effect of inserts on Flow-Induced Pulsations at T-joints in ducts

摘要

In this paper, an experimental investigation of the effect of inserts in Tee connect ions on Flow-Induced Pulsations is presented. The choice of the double side-branch resonator reproduces a worst-case pnlsating gas transport pipe system and enables reproducible measurements. The results show a large effect of the geometry of the inserts, as some geometries hardly affect the amplitude of the pulsations while the most efficient reduces the amplitude of the pulsations by a factor 4. None of the tested inserts act nally destroyed the coherence of the vortex structures and removed the source of pulsations. The elleet seems to be due for a large part to the additional damping introduced in the Tee connection.