An acoustic model of a Helmholtz resonator under a grazing turbulent boundary layer
An acoustic model of a Helmholtz resonator under a grazing turbulent boundary layer
复制标题
掠湍流边界层下亥姆霍兹谐振器的声学模型
DOI:
10.1007/s00707-018-2354-5
复制
发表时间:
2019
期刊:
影响因子:
2.7
通讯作者:
Jörn Sesterhenn
中科院分区:
文献类型:
--
作者:
Lewin Stein;Jörn Sesterhenn
Acoustic models of resonant duct systems with turbulent flow depend on fitted constants based on expensive experimental test series. We introduce a new model of a resonant cavity, flush mounted in a duct or flat plate, under grazing turbulent flow. Based on previous work by Goody, Howe and Golliard, we present a more universal model where the constants are replaced by physically significant parameters. This enables the user to understand and to trace back how a modification of design parameters (geometry, fluid condition) will affect acoustic properties. The derivation of the model is supported by a detailed three-dimensional direct numerical simulation as well as an experimental test series. We show that the model is valid for low Mach number flows () and for low frequencies (below higher transverse cavity modes). Hence, within this range, no expensive simulation or experiment is needed any longer to predict the sound spectrum. In principle, the model is applicable to arbitrary geometries: Just the provided definitions need to be applied to update the significant parameters. Utilizing the lumped-element method, the model consists of exchangeable elements and guarantees a flexible use. Even though the model is linear, resonance conditions between acoustic cavity modes and fluid dynamic unstable modes are correctly predicted.
登录
查看更多内容
影响因子:
3.6
作者:
Yantao Yang;D. Rockwell;K. L. Cody;M. Pollack
通讯作者:
Yantao Yang;D. Rockwell;K. L. Cody;M. Pollack
DOI:
10.2514/1.j055295
发表时间:
2016-12
期刊:
--
影响因子:
--
作者:
K. Förner;Jonathan Tournadre;P. Martínez-Lera;W. Polifke
通讯作者:
K. Förner;Jonathan Tournadre;P. Martínez-Lera;W. Polifke
DOI:
10.2514/6.2010-3767
发表时间:
2010
期刊:
The Journal of the Acoustical Society of America
影响因子:
--
作者:
J. Roche;F. Vuillot;L. Leylekian;G. Delattre;E. Piot;F. Simon
通讯作者:
F. Simon
影响因子:
3.7
作者:
J. Eldredge;D. Bodony;M. Shoeybi
通讯作者:
M. Shoeybi
影响因子:
2.6
作者:
P. Hémon;F. Santi;X. Amandolese
通讯作者:
X. Amandolese