EFFECTS OF TEMPERATURE GRADIENT ON THE PROPAGATION OF AN ACOUSTIC SOLITARY WAVE IN AN AIR-FILLED TUBE

机译：温度梯度对气管内声孤波传播的影响

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This paper examines effects of temperature gradient on the propagation of an acoustic solitary wave in an air-filled tube with an array of Helmholtz resonators. With neglect of viscosity and heat conduction, interest is focused on the effects due to axial nonuniformity of the temperature and density of air in undisturbed state. On the basis of the nonlinear wave equations for unidirectional propagation of plane waves, evolutions of the acoustic solitary wave are sought numerically in two cases where the temperature increases or decreases linearly along the tube. Discussions are given by comparing the present problem with the one of propagation of a shallow-water soliton over variable topography.

机译：本文研究了温度梯度对带有亥姆霍兹谐振器阵列的充气管中声孤立波传播的影响。在忽略粘度和导热的情况下，人们将注意力集中在温度的轴向不均匀性和未扰动状态下的空气密度带来的影响上。基于平面波单向传播的非线性波动方程，在两种情况下，沿着温度线性增加或降低温度，从数值上寻找声孤立波的演化。通过将当前问题与浅水孤子在可变地形上的传播问题进行比较，进行了讨论。

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《IUTAM Symposium on Diffraction and Scattering in Fluid Mechanics and Elasticity Jul 16-20, 2000 Manchester, United Kingdom》|2000年|p.189-198|共10页
会议地点 Manchester(GB)
作者
N. Sugirnoto; K. Tsujimoto;
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作者单位

Department of Mechanical Science Graduate School of Engineering Science University of Osaka, Osaka 560-8531, Japan;

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原文格式 PDF
正文语种 eng
中图分类力学;
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EFFECTS OF TEMPERATURE GRADIENT ON THE PROPAGATION OF AN ACOUSTIC SOLITARY WAVE IN AN AIR-FILLED TUBE

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