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Nehad Ali Shah

Bio: Nehad Ali Shah is an academic researcher from Sejong University. The author has contributed to research in topics: Nanofluid & Mechanics. The author has an hindex of 21, co-authored 133 publications receiving 1545 citations. Previous affiliations of Nehad Ali Shah include Ton Duc Thang University & Lahore Leads University.

Papers published on a yearly basis

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Journal ArticleDOI
TL;DR: In this article, a Caputo-Fabrizio fractional derivatives approach to the thermal analysis of a second grade fluid over an infinite oscillating vertical flat plate is presented, where the heat transfer is caused by the buoyancy force induced by temperature differences between the plate and the fluid.
Abstract: This paper presents a Caputo–Fabrizio fractional derivatives approach to the thermal analysis of a second grade fluid over an infinite oscillating vertical flat plate. Together with an oscillating boundary motion, the heat transfer is caused by the buoyancy force induced by temperature differences between the plate and the fluid. Closed form solutions of the fluid velocity and temperature are obtained by means of the Laplace transform. The solutions of ordinary second grade and Newtonian fluids corresponding to time derivatives of integer and fractional orders are obtained as particular cases of the present solutions. Numerical computations and graphical illustrations are used in order to study the effects of the Caputo–Fabrizio time-fractional parameter \(\upalpha \), the material parameter \(\alpha _2 \), and the Prandtl and Grashof numbers on the velocity field. A comparison for time derivative of integer order versus fractional order is shown graphically for both Newtonian and second grade fluids. It is found that fractional fluids (second grade and Newtonian) have highest velocities. This shows that the fractional parameter enhances the fluid flow.

160 citations

Journal ArticleDOI
TL;DR: A systematic review procedure on the effects of Grashof number and mixed convection parameter on the flow of various fluids is presented in this article, where 30 relevant articles were screened and reviewed for the study.

120 citations

Journal ArticleDOI
TL;DR: In this article, the Laplace transform method was used to solve the convection flow of differential type fluid with non-integer order Caputo-fractional derivatives, and the non-dimensional temperature, concentration, and velocity fields were solved by using Laplace Transform method.

101 citations

Journal ArticleDOI
TL;DR: In this article , the dynamics of water colloidally mixed with three distinct types of nano-sized particles were investigated. And the results for boundary layer flow showed that increasing the density of spherical nanoparticles caused a reduction in the friction between the layers of water-based ternary-hybrid nanofluid and the wall, and an increment in friction from the wall till the free stream.

83 citations


Cited by
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[...]

08 Dec 2001-BMJ
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality. Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

33,785 citations

Book ChapterDOI
01 Jan 2015

3,828 citations

Journal Article
TL;DR: The International Nanofluid Property Benchmark Exercise (INPBE) as discussed by the authors was held in 1998, where the thermal conductivity of identical samples of colloidally stable dispersions of nanoparticles or "nanofluids" was measured by over 30 organizations worldwide, using a variety of experimental approaches, including the transient hot wire method, steady state methods, and optical methods.
Abstract: This article reports on the International Nanofluid Property Benchmark Exercise, or INPBE, in which the thermal conductivity of identical samples of colloidally stable dispersions of nanoparticles or “nanofluids,” was measured by over 30 organizations worldwide, using a variety of experimental approaches, including the transient hot wire method, steady-state methods, and optical methods. The nanofluids tested in the exercise were comprised of aqueous and nonaqueous basefluids, metal and metal oxide particles, near-spherical and elongated particles, at low and high particle concentrations. The data analysis reveals that the data from most organizations lie within a relatively narrow band (±10% or less) about the sample average with only few outliers. The thermal conductivity of the nanofluids was found to increase with particle concentration and aspect ratio, as expected from classical theory. There are (small) systematic differences in the absolute values of the nanofluid thermal conductivity among the various experimental approaches; however, such differences tend to disappear when the data are normalized to the measured thermal conductivity of the basefluid. The effective medium theory developed for dispersed particles by Maxwell in 1881 and recently generalized by Nan et al. [J. Appl. Phys. 81, 6692 (1997)], was found to be in good agreement with the experimental data, suggesting that no anomalous enhancement of thermal conductivity was achieved in the nanofluids tested in this exercise.

881 citations

Journal ArticleDOI
TL;DR: In this paper , the authors analyzed the radiative flow of Maxwell nanoliquid on a stretching cylinder by considering magnetic effect, Stefan blowing and bioconvection effects, and found that the upshot change in thermal and mass relaxation times parameters declines the thermal and concentration pattern, respectively.

405 citations

Journal ArticleDOI
TL;DR: In this paper, the solidification process of nano enhanced phase change material (NEPCM) is simulated in existence of radiative heat transfer, where H2O and CuO are utilized as PCM and nanoparticles, respectively.

245 citations