The Corrected Expressions for the Four-Pole Transmission Matrix for a Duct with a Linear Temperature Gradient and an Exponential Temperature Profile

• 作者: Carl Q. Howard
• 来源期刊: 声学期刊(英文)
• 学科: 医学
• 关键词: DUCT Transmission Matrix Four-Pole Temperature GRADIENT Finite Element Analysis
• 年，卷（期）: 2013,（3）
• 页码范围: 62-66
• 页数: 5页
• 分类号: R73

摘要

The purpose of this letter is to present the corrected expressions for the four-pole transmission matrix for a duct with a linear temperature gradient and an exponential temperature profile, described in Sujith [1]. The corrected equations are used in the analyses of a duct that is driven by a piston at one end and a rigid termination at the other end and the gas has a linear and exponential temperature gradients. The acoustic pressure and particle velocity along the duct are calculated and the theoretical results are compared with predictions using finite element analysis.