Vortex pulsation simulation of a piping noise dampener

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Abstract

This paper presents a research on dynamic characteristics of an internal pipe noise dampener. The study covers an investigation of vortex pulsations within a pipe system after the dampener. For this purpose, the numerical technique of estimation of hydrodynamic noise after the dampener diffuser has been developed. This technique is based on LES turbulence model. The obtained numerical data illustrates the inherent hydrodynamic noise level in the dampener diffuser. This noise level allows us to estimate background noise condition of the piping in which dampeners are used. The numerical results are verified by experimental data which confirm the adequacy of the developed model at the low frequency range.

About the authors

Kirill Romanov

Samara National Research University

Author for correspondence.
Email: romanov.kirill.94@mail.ru

Laboratory assistant of the scientific and educational center no. 402 (REC-402)

Russian Federation

Georgy Makaryants

Samara National Research University

Email: georgy.makaryants@gmail.com

Doctor of technical sciences, professor of the Department of Power Plant Automatic Systems

Russian Federation

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Copyright (c) 2018 Кирилл Андреевич Романов, Георгий Михайлович Макарьянц

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Journal of Dynamics and Vibroacoustics

ISSN 2409-4579 (Online)

Publisher and Founder: Samara National Research University, 34, Moskovskoye shosse, Samara, 443086, Russian Federation.

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