A Theoretical Exploration of Gravity Effects on Micro-Elongated Thermoelastic Media in Infinite Inviscid Fluids

Document Type : Original Article

Authors

Faculty of Computers and Information System, Egyptian Chinese University, Cairo, Egypt.

10.21608/ecjs.2025.396973.1000

Abstract

This study presents a thorough examination of the dynamic response of a micro-elongated thermoelastic half-space immersed in an unbounded, non-viscous fluid, with particular attention given to the influence of gravity. The investigation is conducted using two distinct thermoelastic frameworks: the Lord-Shulman (L - S) model and the Dual-Phase-Lag ( DPL ) model. The governing equations are meticulously derived according to each theoretical model. An analytical solution is achieved through the use of the normal mode analysis method. Aluminum epoxy is selected as the representative material to demonstrate and compare how gravity affects the interaction between the micro-elongated thermoelastic medium and the surrounding fluid. The findings obtained from the L - S model are directly compared with those from the Dual - Phase - Lag model to reveal variations in material behavior. The analysis clearly shows that gravity significantly impacts all considered physical quantities, including displacement, temperature, micro-elongation, and stress components.

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Egyptian Chinese Journal of Applied Sciences
Volume 1, Issue 1
June 2025
Pages 1-16

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