TY - JOUR AB - A numerical matching technique known as point collocation is used to model mathematically large dissipative splitter silencers of a type commonly found in HVAC ducts. Transmission loss predictions obtained using point collocation are compared with exact analytic mode matching predictions in the absence of mean flow. Over the frequency range in which analytic mode matching predictions are available, excellent agreement with point collocation transmission loss predictions is observed for a range of large splitter silencers. The validity of using point collocation to tackle large dissipative silencers is established, as is the computational efficiency of the method and its suitability for tackling dissipative silencers of arbitrary, but axially uniform, cross-sections. © 2004 Elsevier Ltd. All rights reserved. AU - Kirby, R AU - Lawrie, JB DA - 2005/08/23 DO - 10.1016/j.jsv.2004.10.016 EP - 339 JO - Journal of Sound and Vibration PY - 2005/08/23 SP - 313 TI - A point collocation approach to modelling large dissipative silencers VL - 286 Y1 - 2005/08/23 Y2 - 2024/03/28 ER -