Insight into the dynamics of fluid conveying tiny particles over a rotating surface subject to Cattaneo–Christov heat transfer, Coriolis force, and Arrhenius activation energy

This study features the entropy generation analysis on a steady two-dimensional flow of an incompressible Casson fluid with heat and mass transfer over a heated linearly stretching surface is investigated using a modified Arrhenius activation energy. The appropriate model governing the physical phenomenon is converted into a dimensionless equation with the aid of appropriate transformation and are numerically solved using the spectral collocation method. The present research model is concerned to study the stagnation point slippery flow, heat, and mass transfer analysis of a Casson fluid flow past an elastic surface with the impact of a magnetic field. The study focuses on the influences of Arrhenius activation energy, melting heat transfer, and heat source on heat and mass transfer behavior posed by Casson fluid. The magnitude of skin becomes lesser for larger values of slip parameter while the rate of mass transfer is enhanced via greater values of the destructive chemical reaction. Also, an excellent agreement is shown with previous studies for the limiting case.

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The Influence of Coriolis Force on Boiling Crisis and Heat Transfer in a Rotating Cryostat at High Overloads

Proceeding of International Symposium on Heat and Mass Transfer in Refrigeration and Cryogenics ◽

10.1615/ichmt.1986.intsymphmtinrefcryo.410 ◽

1986 ◽

Author(s):

M. O. Lutset ◽

Samson Semenovich Kutateladze

Keyword(s):

Heat Transfer ◽

Coriolis Force ◽

Boiling Crisis ◽

Rotating Cryostat

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Impact of Binary Chemical Reaction and Activation Energy on Heat and Mass Transfer of Marangoni Driven Boundary Layer Flow of a Non-Newtonian Nanofluid

Processes ◽

10.3390/pr9040702 ◽

2021 ◽

Vol 9 (4) ◽

pp. 702

Author(s):

Ramanahalli Jayadevamurthy Punith Gowda ◽

Rangaswamy Naveen Kumar ◽

Anigere Marikempaiah Jyothi ◽

Ballajja Chandrappa Prasannakumara ◽

Ioannis E. Sarris

Keyword(s):

Heat Transfer ◽

Activation Energy ◽

Boundary Layer ◽

Mass Transfer ◽

Heat And Mass Transfer ◽

Velocity Gradient ◽

Boundary Layer Flow ◽

Biological Fluids ◽

Porosity Parameter ◽

Layer Flow

The flow and heat transfer of non-Newtonian nanofluids has an extensive range of applications in oceanography, the cooling of metallic plates, melt-spinning, the movement of biological fluids, heat exchangers technology, coating and suspensions. In view of these applications, we studied the steady Marangoni driven boundary layer flow, heat and mass transfer characteristics of a nanofluid. A non-Newtonian second-grade liquid model is used to deliberate the effect of activation energy on the chemically reactive non-Newtonian nanofluid. By applying suitable similarity transformations, the system of governing equations is transformed into a set of ordinary differential equations. These reduced equations are tackled numerically using the Runge–Kutta–Fehlberg fourth-fifth order (RKF-45) method. The velocity, concentration, thermal fields and rate of heat transfer are explored for the embedded non-dimensional parameters graphically. Our results revealed that the escalating values of the Marangoni number improve the velocity gradient and reduce the heat transfer. As the values of the porosity parameter increase, the velocity gradient is reduced and the heat transfer is improved. Finally, the Nusselt number is found to decline as the porosity parameter increases.

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