Entropy generation on magneto-convective flow of copper–water nanofluid in a cavity with chamfers

Marzougui, Souad; Mebarek‐Oudina, Fateh; Assia, A.; Magherbi, Mourad; Shah, Zahir; Ramesh, K.

doi:10.1007/s10973-020-09662-3

Cited by 123 publications

(43 citation statements)

References 39 publications

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“…Alternatively, thermodynamics second law was employed to minimalize the entropy optimization in engineering systems by Bejan [ 30 , 31 ]. Using different geometrical configurations, the authors of [ 32 , 33 , 34 , 35 , 36 ] have calculated the entropy generation. Chen et al [ 37 ] and Liu and Lo [ 38 ] analyzed the entropy optimization in convective flow with viscous dissipation influence.…”

Section: Introductionmentioning

confidence: 99%

Hall Effect on Radiative Casson Fluid Flow with Chemical Reaction on a Rotating Cone through Entropy Optimization

Deebani

Tassaddiq

Shah

et al. 2020

Entropy

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Magnetohydrodynamic (MHD) flow with Hall current has numerous applications in industrial areas such as Hall current accelerators, MHD power generators, planetary dynamics, Hall current sensors, etc. In this paper, the analysis of an unsteady MHD Casson fluid with chemical reaction over a rotating cone is presented. The impacts of Hall current, joule heating, thermal radiation, and viscous dissipation are analyzed. Entropy optimization is also considered in the present analysis. The system of coupled equations is tackled with homotopy analysis method (HAM). The convergence of HAM is also shown through figures. Deviations in the flow due to dimensionless parameters are shown graphically. Similarly, the variation in skin friction, Nusselt number, and Sherwood number are deliberated through Tables. A justification of the current consequences is presented.

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Section: Introductionmentioning

confidence: 99%

Hall Effect on Radiative Casson Fluid Flow with Chemical Reaction on a Rotating Cone through Entropy Optimization

Deebani

Tassaddiq

Shah

et al. 2020

Entropy

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“…Several researchers have used this method by applying fundamental vibration measurement tools using an experimental process for determining the resounding observations [51,54,55] As shown in Figure 1, the cantilever beam prototype was modeled by using the ANSYS program version 15 for the whole model. Due to the efficiency of solving these types of software, we can use them in several technological and industrial fields [56][57][58]. e dynamic analysis was used to present the fixed support at the left side and a unit force of the beam.…”

Section: Methodsologymentioning

confidence: 99%

Simulation and Analysis with Wavelet Transform Technique and the Vibration Characteristics for Early Revealing of Cracks in Structures

Abu‐Hamdeh

Daqrouq

Mebarek‐Oudina

2021

Mathematical Problems in Engineering

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Implementation of improved instruments is used to detect damage in an accurate manner and fully analyze its characteristics. An aluminum beam has been used in this work to identify cracks by using a vibration technique. The simulation of frequency response feature was conducted using a finite element model to provide average measures of intensities of vibration. Two forms of wavelet packet transform (WPT) entropies Shannon and log energy were applied to identify the position, width, and size of the crack. The results showed that with an increase in crack depth, the amplitude also increased at certain crack sizes and for all crack positions. For two crack depths of 1.6 mm and 0.16 mm having the same crack size and position 12 mm and 60 mm, respectively, a 4.5% increase in amplitude was observed at a crack depth of 1.6 mm. Moreover, the amplitude varied inversely with the position. A 12.6% increase in amplitude was observed at a crack depth of 1.6 mm rather than 0.16 mm, while both depths occurred at the same crack position (75 mm) and size (20 mm). Experimental validation was performed on a cantilever beam with one crack. The maximum absolute error found was 7.5% for the crack position and 9.1% for the crack size. With the increase in crack depth, the obtained results decrease the stiffness of a beam in a single crack case.

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“…Osalusi [13] with the help of shooting techniques. Due to the rotating disk the analytical modeling for heat transfer of the couple stress and unsteady MHD flow is pointed out by Khan et al [14] and also Runge -Kutta method with shooting technique was hired for the solution of their model numerically and also explain the variation of physical [19][20][21][22][23][24][25][26][27][28][29][30][31] In aforementioned studies and a comprehensive literature review, it is disclosed that no such study has been carried out and is currently available to examine the heat transfer and magnetically driven nanofluid flow over the rotating disk in the occurrence of chemical reaction was examined. The partial differential equation of the model can be converted into an ordinary differential equation with the help of similarity transformation and solved these ordinary differential equations by using finite difference method.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Study of Chemical Reaction in a Nanofluid Flow Due to Rotating Disk in the Presence of Magnetic Field

Ramzan

Nisar

Khan

et al. 2021

Preprint

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In this paper, a numerical study of MHD steady flow due to the rotating disk with chemical reaction was explored. Effect of different parameters such as Schmidt number, chemical reaction parameter, Prandtl number, Suction parameter, heat absorption/generation parameter, Nano-particle concentration, Reynold number, Magnetic parameter, skin friction, shear stress, temperature distribution, Nusselt number, mass transfer rate, radial velocity, axial velocity, and tangential velocity was analyzed and discussed. For the simplification of non-linear partial differential equations (PDEs) into the nonlinear ordinary differential equation (ODEs), the method of Similarity transformation was employed, and the resulting partial differential equation was solved by using finite difference method through MATLAB programming. This work's remarkable finding is that with the expansion of nanoparticle concentration radial velocity, tangential velocity and temperature of the fluid was enhanced but reverse reaction for axial velocity. Furthermore, the present results are found to be in excellent agreement with previously published work.

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Entropy generation on magneto-convective flow of copper–water nanofluid in a cavity with chamfers

Cited by 123 publications

References 39 publications

Hall Effect on Radiative Casson Fluid Flow with Chemical Reaction on a Rotating Cone through Entropy Optimization

Hall Effect on Radiative Casson Fluid Flow with Chemical Reaction on a Rotating Cone through Entropy Optimization

Simulation and Analysis with Wavelet Transform Technique and the Vibration Characteristics for Early Revealing of Cracks in Structures

A Numerical Study of Chemical Reaction in a Nanofluid Flow Due to Rotating Disk in the Presence of Magnetic Field

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