Study on the Impact of Drainage Noise in Residential Bathrooms Based on Finite Element Simulation
DOI:
https://doi.org/10.24425/aoa.2024.148799Keywords:
residential building, bathroom drainage noise, numerical simulation, sound field distributionAbstract
Residential bathroom drainage noise is a primary source of indoor noise that directly affects quality of life and physical and mental health. Therefore, based on the acoustic theory and the finite element simulation technology, this paper proposes a method to simulate the drainage noise characteristics and its impact range jointly using the flow and acoustic fields. The pressure at the pipe wall caused by the internal flow field of the bathroom drainage pipe is calculated by the Fluent software. Simulations are carried out with the Virtual Lab software to predict the drainage noise characteristics and spatial distribution and to analyse the influence of factors such as the door position, riser position, and the partition wall material on the noise distribution. The results show that drainage noise has prominent high-frequency characteristics, the position of the bathroom drainage pipes and doors affects the spatial noise distribution, and the sound insulation performance of a partition wall with ordinary fired bricks in the bathroom is slightly better than that of ordinary concrete bricks, lightweight aggregate concrete blocks or fly ash blocks. This paper provides a theoretical basis and practical reference for reducing the impact of residential drainage noise and creating a healthy and comfortable indoor acoustic environment.References
Cao Y., Ke H., Lin Y., Zeng M., Wang Q. (2017), Investigation on the flow noise propagation mechanism in pipes of shell-and-tube heat exchangers based on synergy principle of flow and sound fields, Applied Thermal Engineering, 122: 339–349, doi: 10.1016/j.applthermaleng.2017.04.057.
Curle N. (1955), The influence of solid boundaries upon aerodynamic sound, Proceedings of the Royal Society of London, Series A. Mathematical and Physical Sciences, 231(1187): 505–514, doi: 10.1098/rspa.1955.0191.
Ffowcs Williams J.E., Hawkings D.L. (1969), Sound generation by turbulence and surfaces in arbitrary motion, Philosophical Transactions of the Royal Society of London, Series A, Mathematical and Physical Sciences, 264(1151): 321–342, doi: 10.1098/rsta.1969.0031.
Fuchs H.V. (1983), Generation and control of noise in water supply installations: Part 1: Fundamental aspects, Applied Acoustics, 16(5): 325–346, doi: 10.1016/0003-682x(83)90025-7.
Fuchs H.V. (1993a), Generation and control of noise in water supply installations. Part 2: Sound source mechanisms, Applied Acoustics, 38(1): 59–85, doi: 10.1016/0003-682x(93)90041-4.
Fuchs H.V. (1993b), Generation and control of noise in water supply installations. Part 3: Rating and abating procedures, Applied Acoustics, 39(3): 165–190, doi: 10.1016/0003-682x(93)90002-N.
Han T. et al. (2020), Flow-induced noise analysis for natural gas manifolds using LES and FW-H hybrid method, Applied Acoustics, 159: 107101, doi: 10.1016/j.apacoust.2019.107101.
Jeon J.Y., Jo H.I., Kim S.M., Yang H.S. (2019), Subjective and objective evaluation of water-supply and drainage noises in apartment buildings by using a head-mounted display, Applied Acoustics, 148: 289–299, doi: 10.1016/j.apacoust.2018.12.037.
Jeong A., Kim K., Shin H., Yang K. (2017), Characteristics of reducing the water-drainage noise of toilet-bowl according to the composition of water drainage piping materials of the bathrooms of apartment housing [in Korean], Transactions of the Korean Society for Noise and Vibration Engineering, 27(1): 114–120, doi: 10.5050/ksnve.2017.27.1.114.
Jiang X., Wu B. (2019), Design and exploration of drainage system based on pressure pipe in buildings, [in:] IOP Conference Series: Earth and Environmental Science, IOP Publishing, 300(2): 022016, doi: 10.1088/1755-1315/300/2/022016.
Jung H.Y., Sung S.H., Jung H.J. (2012), Drainage noise reduction system using a vacuum double pipe elbow, [in:] Proceedings of the Korean Society for Noise and Vibration Engineering Conference, pp. 817–818.
Lau S.K., Powell E.A. (2018), Effects of absorption placement on sound field of a rectangular room: A statistical approach, Journal of Low Frequency Noise, Vibration and Active Control, 37(2): 394–406, doi: 10.1177/1461348418780027.
Liang Z., Zhou G., Zhang Y., Li Z., Lin S. (2006), Vibration analysis and sound field characteristics of a tubular ultrasonic radiator, Ultrasonics, 45(1–4): 146–151, doi: 10.1016/j.ultras.2006.07.022.
Lighthill M.J. (1952), On sound generated aerodynamically. I. General theory, Proceedings of the Royal Society of London, Series A. Mathematical and Physical Sciences, 211(1107): 564–587, doi: 10.1098/rspa.1952.0060.
Liu E., Yan S., Peng S., Huang L., Jiang Y. (2016), Noise silencing technology for manifold flow noise based on ANSYS fluent, Journal of Natural Gas Science and Engineering, 29: 322–328, doi: 10.1016/j.jngse.2016.01.021.
Mao Q., Pietrzko S. (2013), Control of noise and structural vibration, Springer, London, pp. 3–4, doi: 10.1007/978-1-4471-5091-6.
Marburg S., Nolte B. [Eds.] (2008), Computational Acoustics of Noise Propagation in Fluids: Finite and Boundary Element Methods, Springer, Berlin, doi: 10.1007/978-3-540-77448-8.
Ministry of Housing and Urban-Rural Development of China (2019), Standard for design of building water supply and drainage (GB 50015-2019) [in Chinese], China Planning Press, Beijing, China.
Mori M., Masumoto T., Ishihara K. (2017), Study on acoustic, vibration and flow induced noise characteristics of T-shaped pipe with a square cross-section, Applied Acoustics, 120: 137–147, doi: 10.1016/j.apacoust.2017.01.022.
Norton M.P., Bull M.K. (1984), Mechanisms of the generation of external acoustic radiation from pipes due to internal flow disturbances, Journal of Sound and Vibration, 94(1): 105–146, doi: 10.1016/s0022-460x(84)80008-5.
Norton M.P., Karczub D.G. (2003a), Pipe flow noise and vibration: a case study, [in:] Fundamentals of Noise and Vibration Analysis for Engineers, Cambridge University Press, Cambridge, pp. 441–487, doi: 10.1017/cbo9781139163927.009.
Norton M.P., Karczub D.G. (2003b), Mechanical vibrations: a review of some fundamentals, [in:] Fundamentals of Noise and Vibration Analysis for Engineers, Cambridge University Press, Cambridge, pp. 1–127, doi: 10.1017/cbo9781139163927.003.
Park S.H., Lee P.J., Jeong J.H. (2018), Effects of noise sensitivity on psychophysiological responses to building noise, Building and Environment, 136: 302–311, doi: 10.1016/j.buildenv.2018.03.061.
Pujol S. et al. (2014), Indoor noise exposure at home: a field study in the family of urban schoolchildren, Indoor Air, 24(5): 511–520, doi: 10.1111/ina.12094.
Ryu J., Song H. (2019), Comparison between single-number quantities for rating noises from sanitary installations in residential buildings by objective and subjective methods, Building and Environment, 164: 106378, doi: 10.1016/j.buildenv.2019.106378.
Sun L., Zhe C., Guo C., Cheng S., He S., Gao M. (2021), Numerical simulation regarding flow-induced noise in variable cross-section pipes based on large eddy simulations and Ffowcs Williams–Hawkings methods, AIP Advances, 11(6): 065118, doi: 10.1063/5.0052148.
Standardization Administration of the P.R.C. (2008), Functions and dimensions series of bathrooms in housing (GB 11977-2008) [in Chinese], China Quality and Standards Publishing and Media Co., Ltd., China.
Villot M. (2000), Characterization of building equipment, Applied Acoustics, 61(3): 273–283, doi: 10.1016/S0003-682X(00)00034-7.
Xu N., Zhang C., Ma L. (2014), Residential building sound pollution and control measures, Advanced Materials Research, 945: 711–716, doi: 10.4028/www.scientific.net/amr.945-949.711.
Yang H.S., Cho H.M., Kim M.J. (2016), Field measurements of water supply and drainage noise in the bathrooms of Korea’s multi-residential buildings, Applied Acoustics, 6(11): 372, doi: 10.3390/app6110372.
Yeon J.O., Kim K.W., Yang K.S., Lee B.K. (2014), Evaluation of noise characteristics of drainage and water supply systems in apartment bathrooms, Advanced Materials Research, 1025: 987–990, doi: 10.4028/www.scientific.net/amr.1025-1026.987.
Zhang N., Xie H., Xing W., Wu B. (2016), Computation of vortical flow and flow induced noise by large eddy simulation with FW-H acoustic analogy and Powell vortex sound theory, Journal of Hydrodynamics, 28(2): 255–266, doi: 10.1016/s1001-6058(16)60627-3.
Published
Issue
Section
License
Copyright © The Author(s).
This work is licensed under the Creative Commons Attribution 4.0 International CC BY 4.0.
How to Cite
