Nonlinear Study on Fluid Porous Elastic Half-plane Based on Local Thermal Non-equilibrium
[1]ZHU Yuanyuan,WANG Xiaomei.Nonlinear Study on Fluid Porous Elastic Half-plane Based on Local Thermal Non-equilibrium[J].Journal of Zhengzhou University (Engineering Science),2020,41(06):60-65.[doi:10.13705/j.issn.1671-6833.2020.04.012]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
41卷
Number of periods:
2020 06
Page number:
60-65
Column:
Public date:
2020-12-31
- Title:
- Nonlinear Study on Fluid Porous Elastic Half-plane Based on Local Thermal Non-equilibrium
- Keywords:
- porous media theory(PMT); fluid-saturated porous thermo-elastic half-plane; geometric nonlinearity; local thermal non-equilibrium; differential quadrature method (DQM); thermodynamic characteristics
- CLC:
- -
- DOI:
- 10.13705/j.issn.1671-6833.2020.04.012
- Abstract:
- In the case of geometric nonlinearity and local thermal non-equilibrium, thermodynamic characteristics for an incompressible fluid-saturated porous thermo-elastic half-plane subjected to a surface temperature loading were studied. Firstly, the mathematical model of problem was established based on the Porous Media Theory. Then a synthetical numerical computation method was presented to simulate the numerical results of problem, in which, the differential quadrature method and the second-order backward difference scheme were applied to discretize mathematical model on the spatial and time domain, respectively. The Newton-Raphson iterative method was finally used to solve the nonlinear algebraic equations and to present the numerical results of the problem. The study pointed out that the solution method was effective and reliable. The advantages of the presented method, such as little calculated amount and high accuracy, could be proved. Finally, the thermodynamics characteristics for a fluid-saturated porous thermo-elastic half-plane subjected to the surface temperature loadings were studied, the effects of material parameters and geometric nonlinearity on the dynamic characteristics were considered in detail.
- References:
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Last Update:
2021-02-10