Onset of triply diffusive convection in a Maxwell fluid saturated porous layer |
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Institution: | 1. Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, Shandong, PR China;2. Department of Engineering Mechanics, School of Civil Engineering, Shandong University, Jinan 250061, Shandong, PR China |
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Abstract: | The linear stability of triply diffusive convection in a binary Maxwell fluid saturated porous layer is investigated. Applying the normal mode method theory, the criterion for the onset of stationary and oscillatory convection is obtained. The modified Darcy–Maxwell model is used as the analysis model, this allows us to make a thorough investigation of the processes of viscoelasticity and diffusions that causes the convection to set in through oscillatory rather than stationary. The effects of Vadasz number, normalized porosity parameter, relaxation parameter, Lewis number and solute Rayleigh number on the system are presented numerically and graphically. |
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Keywords: | Triply diffusive convection Linear stability The normal model Maxwell fluid Relaxation time |
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