Heat transfer and entropy generation analysis of a protruded surface in presence of a cross-flow jet using Al 2 O 3 -water nanofluid

Mukherjee, Arnab; Rout, Swetapadma; Barik, Ashok K.

doi:10.1016/j.tsep.2018.01.001

Cited by 18 publications

(2 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The natural convection of an inclined surface was analytically investigated by Guha and Pradhan (2017). Mukherjee et al (2018) executed a numerical path to study S gen of a surface with spikes, and demonstrate that both the nozzle and the duct Re significantly affect S gen . However, the slip wall and temperature jump conditions have not been considered in their study; instead, they used nonslip and constant temperature at the wall for analyzing the flow in a nonradiative environment.…”

Section: Introductionmentioning

confidence: 99%

Effects of velocity, thermal and concentration slips on the entropy generation of nanofluid over an inclined sheet

Barik,

Rout,

Senapati

et al. 2024

HFF

Self Cite

View full text Add to dashboard Cite

Purpose This paper aims at studying numerically the entropy generation of nanofluid flowing over an inclined sheet in the presence of external magnetic field, heat source/sink, chemical reaction along with slip boundary conditions imposed on an impermeable wall. Design/methodology/approach A suitable similarity transformation technique has been used to convert the coupled nonlinear partial differential equations to ordinary differential equations (ODEs). The ODEs are then solved simultaneously using the finite difference method implemented through an in-house computer program. The effects of different controlling parameters such as magnetic parameter, radiation parameter, Brownian motion parameter, thermophoresis parameter, chemical reaction parameter, Reynolds number, Brinkmann number, Prandtl number, velocity slip parameter, temperature slip parameter and the concentration slip parameter on the entropy generation and Bejan number have been discussed comprehensively through the relevant physical insights for the first time. Findings The relative strengths of the irreversibilities due to heat transfer, fluid friction and the mass diffusion arising due to the change in each of the controlling variables have been delineated both in the near-wall and far-away-wall regions, which may be helpful for a better understanding of the thermo-fluid dynamics of nanofluid in boundary layer flows. The numerical results obtained from the present study have also been validated with results published in open literature. Originality/value The effects of different controlling parameters such as magnetic parameter, radiation parameter, Brownian motion parameter, thermophoresis parameter, chemical reaction parameter, Reynolds number, Brinkmann number, Prandtl number, velocity slip parameter, temperature slip parameter and the concentration slip parameter on the entropy generation and Bejan number have been discussed comprehensively through the relevant physical insights for the first time.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of velocity, thermal and concentration slips on the entropy generation of nanofluid over an inclined sheet

Barik,

Rout,

Senapati

et al. 2024

HFF

Self Cite

View full text Add to dashboard Cite

show abstract

“…Recently, the authors [26] studied entropy generation in the case of heated surface by impinging nano uid on trapezoidal protrusions using a similar duct. Based on the previous literature, many studies on nano uid have been carried out to use nano uid for heat transfer augmentation in various engineering applications.…”

Section: Introductionmentioning

confidence: 99%

Heat transfer correlation for a cross-flow jet impingement on a protruded surface

Rout¹,

Mukherjee²,

Barik³

2019

Scientia Iranica

Self Cite

View full text Add to dashboard Cite

This study proposed the heat transfer correlation for a surface tted with rectangular ribs by solving the continuity, momentum, energy, and turbulence equations by the nite volume approach. Extensive computations were performed to modify both the duct Reynolds number (Re Dh;duct ) and the nozzle Reynolds number (Re Dh;nz ) in the range of 6,000{20,000. The volume fraction () and the Prandtl number (Pr) of the nano uid varied in the range of 0 to 5% and 7.288 to 9.92, respectively. The number of protrusions (n) varied from 1 to 4. The data collected from numerical experimentation were regressed nonlinearly using Levenberg and Marquest (L-M) method to obtain an empirical correlation for the Nusselt number. The Nusselt number predicted from the correlation was compared with its value obtained from the computations. Close agreement between the predicted and computed Nusselt numbers was observed. In terms of heat transfer augmentation, the duct Reynolds number, the nozzle Reynolds number, and the volume fraction of nano uid were found to be some of the signi cant in uencing parameters in heat transfer.

show abstract

Numerical Study of Turbulent Airflow Structure and Transfer of Heat Having Trapezoidal Baffles Attached on the Walls and Centerline of the Rectangular Channel

Saha¹,

Biswas

Das³

2022

Int. J. Appl. Comput. Math

View full text Add to dashboard Cite

Heat transfer and entropy generation analysis of a protruded surface in presence of a cross-flow jet using Al 2 O 3 -water nanofluid

Cited by 18 publications

References 69 publications

Effects of velocity, thermal and concentration slips on the entropy generation of nanofluid over an inclined sheet

Effects of velocity, thermal and concentration slips on the entropy generation of nanofluid over an inclined sheet

Heat transfer correlation for a cross-flow jet impingement on a protruded surface

Numerical Study of Turbulent Airflow Structure and Transfer of Heat Having Trapezoidal Baffles Attached on the Walls and Centerline of the Rectangular Channel

Contact Info

Product

Resources

About