Heat source/sink impact on wave oscillations of thermal and concentration boundary layer along inclined plate under lower gravitational region

Hammad Al-Shammari,Zia Ullah,Asifa Ilyas,Musaad S. Aldhabani, Eman T. Alkathiri, Mohamed E. El-Sayed, Mohammad N. Murshed,Ahmed M. Hassan

CASE STUDIES IN THERMAL ENGINEERING(2024)

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摘要
The force of attraction between two masses increases as gravity increases. Gravity is very important mechanism for mass transfer characteristics across the inclined shape. The significant purpose of current study is to examine amplitude in mass transfer under reduced gravity-driven flow. The impact of heat source/sink on periodic mixed convective gravity-driven flow across the inclined plate has been evaluated. The oscillatory characteristics of heat rate and mass transmission are explored at three inclined angles pi /6, pi /4 and pi /3. The gravity is assumed under maximum temperature difference. The governing dimensional model is transformed into non dimensional equations with appropriate scaling variables. The non-dimensional equations are again reduced in non-oscillatory, real and imaginary parts. For smooth coding, the primitive formulation is used with finite difference method to change non-dimensional forms in algebraic system. The algebraic equations are solved with Gaussian elimination scheme to display velocity field, temperature distribution and rate of concentration numerically. The impact of heat source/ sink +/-delta, reduced gravity Rg, buoyancy variable lambda T, modified buoyancy factor lambda C, Prandtl factor Pr, reduced gravitation factor Rg, and Schmidt variable Sc on the oscillating behavior of shear stress, rate of fluctuating heat transfer, and rate of fluctuating mass transfer is secured. It is found that the amplitude of fluid velocity and temperature increases for each parameter under heat source + delta= 0.4. It can be seen that concentration distribution increases as reduced gravity Rg increases under heat sink delta= 0.3. It can be seen that amplitude of shearing stress and heat transfer increases as heat source +delta increases. It is obtained that oscillation in mass transfer increases as heat source/sink +/-delta increases under reduced gravitation Rg = 1.2.
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关键词
Mass transfer,Oscillatory fluid,Gravity-driven flow,Heat source/sink,Inclined heated plate
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