التفاصيل البيبلوغرافية
| العنوان: |
Inhomogeneous waves propagation in double-porosity thermoelastic media. |
| المؤلفون: |
Kumar, Manjeet1 (AUTHOR) manjit.msc@gmail.com, Bhagwan, Jai2 (AUTHOR) jaipuchd@gmail.com, Kaswan, Pradeep3 (AUTHOR) pradeepkaswan222@gmail.com, Liu, Xu4 (AUTHOR) xu.liu108@gmail.com, Kumari, Manjeet5 (AUTHOR) manjeet.aryan17@gmail.com |
| المصدر: |
International Journal of Numerical Methods for Heat & Fluid Flow. 2023, Vol. 33 Issue 8, p2927-2962. 36p. |
| مصطلحات موضوعية: |
*THEORY of wave motion, *ELASTIC wave propagation, *PLANE wavefronts, *SHEAR waves, *ATTENUATION coefficients, *THERMOELASTICITY, *ELASTIC waves |
| مستخلص: |
Purpose: The purpose of this study is to investigate the reflection of plane waves in a double-porosity (DP) thermoelastic medium. Design/methodology/approach: To derive the theoretical formulas for elastic wave propagation velocities through the potential decomposition of wave-governing equations. The boundary conditions have been designed to incorporate the unique characteristics of the surface pores, whether they are open or sealed. This approach provides a more accurate and realistic mathematical interpretation of the situation that would be encountered in the field. The reflection coefficients are obtained through a linear system of equations, which is solved using the Gauss elimination method. Findings: The solutions obtained from the governing equations reveal the presence of five inhomogeneous plane waves, consisting of four coupled longitudinal waves and a single transverse wave. The energy ratios of reflected waves are determined for both open and sealed pores on the stress-free, the thermally insulated surface of DP thermoelastic medium. In addition, the energy ratios are compared for the cases of a DP medium and a DP thermoelastic medium. Originality/value: A numerical example is considered to investigate the effect of fluid type in inclusions, temperature and inhomogeneity on phase velocities and attenuation coefficients as a function of frequency. Finally, a sensitivity analysis is performed graphically to observe the effect of the various parameters on propagation characteristics, such as propagation/attenuation directions, phase shifts and energy ratios as a function of incident direction in double-porosity thermoelasticity medium. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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