Open Journal of Acoustics, 2021, 11, 1-16 https://www.scirp.org/journal/oja ISSN Online: 2162-5794 ISSN Print: 2162-5786 DOI: 10.4236/oja.2021.111001 Mar. 28, 2021 1 Open Journal of Acoustics CFD Simulation of Air Flow Behaviour at Different Flow Rates in a Turkish Woodwind Instrument (Turkish Treble Recorder) H. Kursat Celik 1* , Ali Bedel 2 , Sevilay Gok 2 , Allan E. W. Rennie 3 1 Department of Agricultural Machinery and Technology Engineering, Akdeniz University, Antalya, Turkey 2 Turkish Folk Music Department, Antalya State Conservatory, Akdeniz University, Antalya, Turkey 3 Engineering Department, Lancaster University, Lancaster, UK Abstract In musical instruments, the geometric design and material features of the in- strument are the most important factors that determine the sound characte- ristics of the instrument. Traditional replication and experiment-based handcrafting methods are predominant in the production of Turkish Folk Music wind instruments. The instrument manufacturing and standardization approaches, which include the relevant rules of physics and engineering prac- tices, are limited purely to prototype studies for scientific research purposes. It is almost impossible to find studies on Turkish Folk Music wind instru- ment design and production involving computer aided design and engineer- ing applications. In this study, an example Turkish woodwind instrument, the Turkish Treble Recorder (dilli kaval) is considered, and the air flow beha- viour and acoustic (sound) power magnitudes that occur at different air flow rates are simulated in a computer environment using a Computational Fluid Dynamics (CFD) simulation technique. In the study, numerical and visual outputs related to air behaviour at different air flow rates that may be used in the instrument manufacturing phases were obtained. Acoustic power level was also measured experimentally. Simulation outputs (the acoustic power level) were compared to experimental results in order to validate the simula- tion results. The comparison revealed that the highest relative difference was calculated as 13.32(%). This value indicated that the simulation results were reasonably consistent with the results of the experimental measurement. Addi- tionally, this study was constructed as a case study that may provide reference for future research studies in this field. Keywords Woodwind Instrument, Turkish Treble Recorder (Dilli Kaval), Computation How to cite this paper: Celik, H.K., Bedel, A., Gok, S. and Rennie, A.E.W. (2021) CFD Simulation of Air Flow Behaviour at Differ- ent Flow Rates in a Turkish Woodwind Instrument (Turkish Treble Recorder). Open Journal of Acoustics, 11, 1-16. https://doi.org/10.4236/oja.2021.111001 Received: January 6, 2021 Accepted: March 25, 2021 Published: March 28, 2021 Copyright © 2021 by author(s) and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution-NonCommercial International License (CC BY-NC 4.0). http://creativecommons.org/licenses/by-nc/4.0/ Open Access