The effects of uniform injection and suction on heat transfer with viscous dissipation through a permeable surface in zero pressure gradient

Turan, Osman; Çuhadaroğlu, Burhan

doi:10.1016/j.icheatmasstransfer.2020.104972

Cited by 8 publications

(2 citation statements)

References 16 publications

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“…For the convectively heated surface, the entropy treatment for heat transfer and flow is investigated by Gangadhar et al 24 Refs. 25–45 revealed the magnetic field's influence on fluid flow, suggesting a fascinating work of interested readers.…”

Section: Introductionmentioning

confidence: 99%

Biconvective transport of magnetized couple stress fluid over a radiative paraboloid of revolution

Gangadhar

Seshakumari

Rao

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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In the present study, the physical features of the bioconvective MHD flow of a couple stress fluid over an upper horizontal surface (i.e. surface shaped like a submarine or any ( uhsp) aerodynamical automobile) is analysed by considering radiation and viscous dissipation effects. In the fluid-saturated domain flow is induced due to the reaction of catalytic surface, double diffusion and stretching fluid layers. In fact, couple stress fluid is electrically conducted because non-uniform magnetic field is imposed. With the assistance of appropriate similarity transformations governing equations of the study are reduced to set of ordinary differential equations. Thereafter, built-in MATLAB solver bvp4c is implemented to solve the system numerically. By means of graphs and tables variations of the velocity, temperature, concentration, friction factor, local heat and mass transfer rates are observed thoroughly by varying the flow controlling parameters. From this analysis, main observations are, for rising values of couple stress and magnetic parameter velocity is decline, whereas temperature rises for the same parameters and increase in the thermal boundary layer is noted for the Brinkman number, whereas reverse trend is noted in the concentration boundary layer. Finally, comparison is done and a good correlation is identified between the present analysis and perversely recorded analysis.

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Section: Introductionmentioning

confidence: 99%

Biconvective transport of magnetized couple stress fluid over a radiative paraboloid of revolution

Gangadhar

Seshakumari

Rao

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…Some results show that velocity profiles and flow structure has been affected by different perforated surfaces and, as a result, wake structures have been reduced considerably. Turan and Çuhadaroğlu (2020) theoretically investigated the effects of uniform injection/suction and viscous dissipation on heat transfer through a perforated surface. They found that the viscous dissipation effect on the heat transfer can be noticeably controlled by using injection/suction through the perforated surface.…”

Section: Introductionmentioning

confidence: 99%

Effects of uniform injection and suction through perforated pentagonal cylinders on the flow and heat transfer

Vakhshouri

Çuhadaroğlu

2021

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Purpose The purpose of this paper is to study the effects of uniform injection and suction through a perforated pentagonal cylinder on the flow field and heat transfer. Design/methodology/approach The finite-volume method has been used to solve the ensemble-averaged Navier-Stokes equations for incompressible flow at moderate Reynolds number (Re = 22,000) with the k-ɛ turbulence model equations. Findings A computational fluid dynamics analysis of turbulent flow past a non-regular pentagonal cylinder with three different aspect ratios aspect ratios has been carried out to investigate the effects of uniform injection/suction through the front and all surfaces of the cylinder. It is found that flow field parameters such as drag coefficient, pressure coefficient and Nusselt number are affected considerably in some cases depend on injection/suction rate (Γ) and perforated wall position. Research limitations/implications To optimize the efficiency of the injection and suction through a perforated surface, both wide-ranging and intensive further studies are required. Using various perforation ratios and injection/suction intensities are some possibilities. Practical implications Control of the vortex shedding and wake region behind bluff bodies is of vital interest in fluid dynamics. Therefore, applying uniform injection and suction from a perforated bluff body into the main flow can be used as a drag reduction mechanism, thermal protection and heat transfer enhancement. Originality/value This study provides unique insights into the active flow control method around pentagonal cylinders that can be useful for researchers in the field of fluid dynamics and aeronautics.

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Variable injection–suction and temperature on Couette–Poiseuille non-Newtonian flow through slippy microchannel: heat transfer and entropy generation

Mondal,

Maiti

2023

J Therm Anal Calorim

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The effects of uniform injection and suction on heat transfer with viscous dissipation through a permeable surface in zero pressure gradient

Cited by 8 publications

References 16 publications

Biconvective transport of magnetized couple stress fluid over a radiative paraboloid of revolution

Biconvective transport of magnetized couple stress fluid over a radiative paraboloid of revolution

Effects of uniform injection and suction through perforated pentagonal cylinders on the flow and heat transfer

Variable injection–suction and temperature on Couette–Poiseuille non-Newtonian flow through slippy microchannel: heat transfer and entropy generation

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