Rayleigh-type wave in thermo-poroelastic media with dual-phase-lag heat conduction

IF 4 3区工程技术 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS

International Journal of Numerical Methods for Heat & Fluid Flow Pub Date : 2025-01-15 DOI:10.1108/hff-11-2024-0853

Manjeet Kumar, Priyanka Lather, Li-Yun Fu, Neelam Kumari, Pradeep Kaswan, Li Nianqi, Manjeet Kumari

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引用次数: 0

Abstract

Purpose

The purpose of this paper is to investigate the propagation of Rayleigh-type surface wave in a porothermoelastic half-space. This study addresses the impact of surface pores characteristics, specific heat, temperature, porosity, wave frequency, types of rock frame and types of pore fluids on the propagation characteristics of Rayleigh-type wave.

Design/methodology/approach

A secular equation is derived, based on the potential functions for both sealed and open surface pores boundary conditions at the stress-free insulated surface of the porothermoelastic medium.

Findings

Propagation characteristics (velocity, attenuation and particle motions) of Rayleigh wave are significantly influenced by boundary conditions (opened or sealed surface pores) and thermal characteristics of materials. Furthermore, the path of particles throughout the propagation of Rayleigh-type waves is identified as elliptical.

Originality/value

A numerical example is considered to examine the effect of thermal characteristics of materials on the existing Rayleigh wave’s propagation characteristics. Graphical analysis is used to evaluate the behavior of particle motion (such as elliptical) at both open and sealed surface of the porothermoelastic medium.

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热传导双相滞后热孔弹性介质中的瑞利波

目的研究瑞利型表面波在孔热弹性半空间中的传播。研究了表面孔隙特征、比热、温度、孔隙度、波频、岩架类型和孔隙流体类型对瑞利型波传播特性的影响。设计/方法/方法基于孔隙热弹性介质无应力绝热表面上密封表面和开放表面孔隙边界条件的势函数，导出了一个长期方程。瑞利波的传播特性（速度、衰减和粒子运动）受边界条件（表面孔隙打开或封闭）和材料热特性的显著影响。此外，粒子在瑞利型波传播过程中的路径被识别为椭圆。通过数值算例分析了材料的热特性对现有瑞利波传播特性的影响。用图形分析方法评价了孔隙热弹性介质开表面和密封表面上粒子运动（如椭圆运动）的行为。

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来源期刊

International Journal of Numerical Methods for Heat & Fluid Flow 工程技术-力学

CiteScore

9.50

自引率

11.90%

发文量

100

审稿时长

6-12 weeks

期刊介绍： The main objective of this international journal is to provide applied mathematicians, engineers and scientists engaged in computer-aided design and research in computational heat transfer and fluid dynamics, whether in academic institutions of industry, with timely and accessible information on the development, refinement and application of computer-based numerical techniques for solving problems in heat and fluid flow. - See more at: http://emeraldgrouppublishing.com/products/journals/journals.htm?id=hff#sthash.Kf80GRt8.dpuf