Four-Poles Parameter of an Elliptical Cavity Having the Outlet on the Body

Yuya Nishimura and Sohei Nishimura
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Yuya Nishimura: National Institute of Technology, Kumamoto College Department of Control and Information Systems Engineering, Japan
Sohei Nishimura: National Institute of Technology, (KOSEN), Kumamoto College, Japan

European Journal of Engineering and Technology Research, 2020, vol. 5, issue 7, 763-766

Abstract: This paper deals with the computation of the four-poles parameter of a thin elliptic cylinder in which the output is fitted to the side that is perpendicular to the input side. The four-poles parameter is based on the sound pressure calculated by solving the wave equations, with the assumption that the loss can be ignored. The four-poles parameter is widely used to estimate the noise characteristic for the acoustic system which are composed of several elements of various cross-sectional areas, various shape connected in series.

Keywords: Four-Poles Parameter; Higher-Order Mode; Wave Equation; Mathieu Function (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:epw:ejeng0:v:5:y:2020:i:7:id:61998

DOI: 10.24018/ejeng.2020.5.7.1998

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