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Your search keyword '"ISMAIL, Zulkhibri"' showing total 5 results
Start Over Author "ISMAIL, Zulkhibri" Topic mhd
5 results on '"ISMAIL, Zulkhibri"'

3. INFLUENCE OF THERMOPHYSICAL PROPERTIES ON MAGNETITE WATER-BASED FERROFLUID HEAT TRANSFER AT SPHERE SURFACE UNDER MAGNETIC FIELD AND THERMAL RADIATION.

Author

MAT YASIN, Siti Hanani, MOHAMED, Muhammad Khairul Anuar, ISMAIL, Zulkhibri, and SALLEH, Mohd Zuki

Subjects
THERMAL conductivity, THERMOPHYSICAL properties, HEAT transfer, PEARSON correlation (Statistics), NUSSELT number, MAGNETITE, HEAT radiation & absorption
Abstract

This theoretical study investigated the effect of thermophysical properties on Nusselt number when the magnetic field and thermal radiation are exposed to the ferrofluid flow at the lower stagnation point of a hot sphere surface. The thermophysical properties are important mechanisms considered in the heat transfer process. Besides, the ferroparticles volume fraction is one of the variables that can enhance the thermophysical properties that are exclusively studied on thermal conductivity and thermal diffusivity of ferrofluid. Therefore, the correlation between the ferroparticles volume fraction and thermophysical properties is measured by the Pearson product-moment correlation coefficient method. The strength of association and the direction of the relationship between these pertinent variables are exhibited in ferrofluid flow composed of magnetite (Fe3O4) and water (H2O). Regression analysis is implemented to predict the effect of the ferroparticles volume fraction on the Nusselt number. The results show a positive correlation between ferroparticles volume fraction and thermal conductivity as well as between ferroparticles volume fraction and thermal diffusivity. Furthermore, a simple linear regression model proposed to predict the Nusselt number when increasing the ferroparticles volume fraction resulted in statistically significant and given minuscule residuals value. [ABSTRACT FROM AUTHOR]

Published
2022
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4. The Effects of Magnetohydrodynamic and Radiation on Flow of Second Grade Fluid Past an Infinite Inclined Plate in Porous Medium.

Author

Ismail, Zulkhibri, Khan, Ilyas, Nasir, Nadirah Mohd, Jusoh@Awang, Rahimah, Salleh, Mohd Zuki, and Shafie, Sharidan

Subjects
*MAGNETOHYDRODYNAMICS, *FLUID dynamics, *HYDRODYNAMICS, *COMPUTATIONAL statistics, *MATHEMATICAL statistics
Abstract

An analysis of the exact solutions of second grade fluid problem for unsteady magnetohydrodynamic (MHD) flows past an infinite inclined plate in a porous medium is presented. It is assumed that the bounding infinite inclined plate has a constant temperature with radiation effects. Based on Boussinesq approximation the expressions for dimensionless velocity, temperature and concentration are obtained by using Laplace transform method. The derived solutions satisfying the involved differential equations, and all the boundary and initial conditions. The influence of various parameters on the velocity has been illustrated graphically and analyzed. [ABSTRACT FROM AUTHOR]

Published
2015
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5. Rotation Effects on Coupled Heat and Mass Transfer by Unsteady MHD Free Convection Flow in a Porous Medium past an Infinite Inclined Plate.

Author

Ismail, Zulkhibri, Khan, Ilyas, Nasir, Nadirah Mohd., Jusoh, Rahimah, Salleh, Mohd. Zuki, and Shafie, Sharidan

Subjects
*MASS transfer, *HEAT transfer, *MAGNETOHYDRODYNAMICS, *FREE convection, *POROUS materials, *INFINITY (Mathematics), *STRUCTURAL plates
Abstract

The effects of rotation on coupled heat and mass transfer by unsteady magnetohydrodynamic (MHD) free convection flow in a porous medium past an infinite inclined plate has been investigated. Exact solution using Laplace transforms technique has been obtained for the velocity, temperature and concentration fields. The analytical expressions for nondimensional skin-friction, Nusselt number and Sherwood number have been computed. The solutions of rotation parameters and inclination angle influences the flow fields have been discussed in detail. It is found that inclination angle tend to retard fluid flow in the primary and secondary flow directions, whereas rotation has a retarding influences on the primary flow direction but to accelerate in the secondary flow direction. [ABSTRACT FROM AUTHOR]

Published
2014
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