NORHALIZA ABU BAKAR

@uthm.edu.my

Department of Science and Mathematics, Centre for Diploma Studies
Universiti Tun Hussein Onn Malaysia

NORHALIZA ABU BAKAR


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https://researchid.co/norhaliza

RESEARCH INTERESTS

Computational fluid dynamics, fluid mechanics, finite volume method
16

Scopus Publications

Scopus Publications

  • Fractional Analysis of Magnetic non-Newtonian Casson Fluid with Copper Nanoparticles Through Inclined Stenosed Artery
    Chan Wai Hao, Dzuliana Fatin Jamil, Salah Uddin, Norhaliza Abu Bakar, Rozaini Roslan
    Malaysian Journal of Fundamental and Applied Sciences, 2026
    Cardiovascular diseases include various heart and blood vessel disorders. Arterial stenosis, caused by the buildup of fatty deposits and other materials, narrows arteries and disrupts normal blood flow, leading to increased wall shear stress and flow disturbances. In this study, the Caputo-Fabrizio fractional derivative is applied to analyze blood flow with copper nanoparticles in an inclined stenosed artery. Blood is modeled as a non-Newtonian Casson fluid under a uniform magnetic field and pressure gradient. Using the Laplace and Hankel transform techniques, analytical solutions for blood and magnetic particle velocities are obtained, and the effects of flow parameters, Hartmann number, time, Casson fluid parameter, and fractional order are presented graphically. Validation against limiting cases shows good agreement with previous studies. The results demonstrate that blood and particle velocities increase with fractional order, time, and Casson fluid parameter, but decrease with higher Hartmann number, with blood velocity generally exceeding particle velocity. These findings are useful for designing targeted drug delivery systems by understanding the behavior of non-Newtonian nanofluids in stenosed arteries under magnetic fields.
  • Mixed Convection in a Lid-Driven Cavity in the Presence of Magnetic Field with Sinusoidal Heating
    Norhaliza Abu Bakar, Rozaini Roslan, Zul Afiq Sazeli, Nur Raidah Salim
    Cfd Letters, 2024
    Understanding mixed convection in engineering applications such as heat exchangers, electronics cooling devices, and solar energy collectors have urged researchers to investigate this phenomenon deeper. This study investigates the fluid flow and heat transfer pattern in a two-dimensional (2D) rectangular cavity with sinusoidal heating on the moving top lid numerically. The bottom wall is kept cool while the vertical walls are insulated. The effect of Hartmann number, Ha on the thermal characteristics and fluid flow are analyzed for Richardson number, Ri=1 which indicate mixed convection dominated regime. The governing equations are solved numerically using a SIMPLE algorithm with the finite volume method. The numerical results are displayed in streamlines and isotherms plots. The value of the Nusselt number indicating the heat transfer rate is also discussed. It is found that Ha has a significant effect on the heat transfer process and fluid flow. It can be seen clearly when the value of Ha=30, the rate of heat transfer dropped significantly on the cold wall. Generally, the heat transfer rate decreases with the increase of Ha.
  • Mixed convection in a double lid-driven rectangular cavity filled with hybrid nanofluid subjected to non-uniform heating using finite-volume method
    I. R. Ali, A. I. Alsabery, M. Mohamad, M. G. Kamardan, N. A. Bakar, et al.
    European Physical Journal Special Topics, 2022
  • Mixed Convection in a Lid-Driven Horizontal Rectangular Cavity Filled with Hybrid Nanofluid by Finite Volume Method
    I. R. Ali, Ammar I. Alsabery, Norhaliza Abu Bakar, Rozaini Roslan
    Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2022
    In the present work, a new type of nanofluid called the hybrid nanofluid (Al2O3-Cu-water) is used to enhance the heat transfer. The Finite-Volume-Method (FVM) along with the SIMPLE-algorithm has been utilized to study the heat-transfer and, mixed convection fluid-flow of the hybrid nanofluid (Al2O3-Cu-water), placed within the lid-driven rectangular cavity. The bottom and top walls are subjected to constant high temperature (Th) and low temperature (Tc) respectively. The side walls are treated as adiabatic. The top wall moves in the positive x-direction. The effects of Reynolds number and hybrid nanoparticle volume fraction on the flow field have been investigated. It is found that the mean Nusselt number increases with respect to Reynolds numbers and hybrid nanoparticle volume fraction.
  • Mixed Convection in a Lid-Driven Horizontal Cavity in the Presence of Internal Heat Generation or Absorption
    Journal of Advanced Research in Numerical Heat Transfer, 2020
  • Mixed convection in a double lid-driven cavity filled with hybrid nanofluid by using finite volume method
    I.R. Ali, Ammar I. Alsabery, N.A. Bakar, Rozaini Roslan
    Symmetry, 2020
    The understanding of mixed convection heat transfer in cavity is crucial for studying the energy consumption and efficiency in many engineering devices. In the present work, the hybrid nanofluid (Al2O3-Cu-Water) is employed to increase the heat transfer rate in a double lid-driven rectangular cavity. The bottom movable horizontal wall is kept at a high temperature while the top movable horizontal wall is kept at a low temperature. The sidewalls are insulated. The mass, momentum and energy equations are numerically solved using the Finite Volume Method (FVM). The SIMPLE algorithm is used for pressure-velocity coupling. Parameters such as Reynold’s number (Re), Richardson number (Ri), moving wall direction, solid volume fraction, and cavity length are studied. The results show that the hybrid nanofluid in the rectangular cavity is able to augment the heat transfer significantly. When Re is high, a big size solid body can augment the heat transfer. Heat transfer increases with respect to Ri. Meanwhile, the local Nusselt number decreases with respect to the cavity length.
  • Effect of heat generation on mixed convection in porous cavity with sinusoidal heated moving lid and uniformly heated or cooled bottom walls
    Adel Alblawi, N. Zainuddin, R. Roslan, Mohammad Rahimi-Gorji, N. A. Bakar, et al.
    Microsystem Technologies, 2020
  • Magnetic field effect on mixed convection heat transfer in a lid-driven rectangular cavity
    Cfd Letters, 2020
  • The effects of internal heat generation or absorption on mixed convection in a lid-driven rectangular cavity using finite volume method
    Norhaliza Abu Bakar, Rozaini Roslan, Mohd Kamalrulzaman Md Akhir
    Cfd Letters, 2020
    Mixed convection heat transfer in cavities is a significant phenomenon in numerous engineering fields, such as nuclear reactors, solar energy storage, and heat exchangers. Despite acknowledging that a square is a basic shape found in these systems, not all the figures are geometrical. Less attention was given to the rectangle cavity even though it could be found in these systems. Various internal reactions could occur inside the systems, especially in geothermal heat exchangers. Therefore, this research aims to analyze the effect of internal heat generation or absorption in a two-dimensional (2D) horizontal cavity to the fluid flow and heat transfer process numerically. The vertical walls are well insulated. Meanwhile, the top and bottom walls are kept at and , respectively, where . The top wall moves at a constant speed from left to right. The finite volume method (FEM) and SIMPLE algorithm are employed to discretize the governing equations. Next, the algebraic equations are solved iteratively using the tri-diagonal matrix algorithm (TDMA). The influences of heat generation or absorption parameters are investigated in terms of the flow, heat transfer, and Nusselt number. The numerical results are plotted in the form of streamlines and isotherms. It is found that the presence of heat generation or absorption has a significant effect on the fluid flow and heat transfer process in the horizontal cavity. Overall, for internal heat generation, the heat transfer rate decreases, while the opposite pattern can be observed for the case of internal heat absorption. However, for Ri = 10.0, as the heat generation's value increases from 2 to 4, the heat transfer rate is the same.
  • Mixed convection in lid-driven cavity with inclined magnetic field
    N.A. Bakar, R. Roslan, A. Karimipour, I. Hashim
    Sains Malaysiana, 2019
    Effects of magnetic field inclination on fluid flow and heat transfer in a two-dimensional square cavity are analyzed numerically. The vertical walls are well insulated, the bottom wall is maintained at a cold temperature, while the top moving lid is kept at a hot temperature. The finite volume method and SIMPLE algorithm are employed to solve the dimensionless governing equations. The results are presented by the profile of streamlines and isotherms, and the variation of Nusselt number. Mixed convection flow is retarded by the presence of the magnetic field and the average Nusselt number is an increasing function of the magnetic field angle.
  • Numerical study of mixed convection in a lid-driven cavity in the presence of internal heat generation/absorption
    N. A. Bakar, A. Karimipour, R. Roslan
    Aip Conference Proceedings, 2017
  • Mixed convection in an inclined lid-driven square cavity with sinusoidal heating on top lid
    Arpn Journal of Engineering and Applied Sciences, 2017
  • Effect of sinusoidally heating on mixed convection in square cavity filled with a porous medium
    Arpn Journal of Engineering and Applied Sciences, 2017
  • Effect of Magnetic Field on Mixed Convection Heat Transfer in a Lid-Driven Square Cavity
    N. A. Bakar, A. Karimipour, R. Roslan
    Journal of Thermodynamics, 2016
  • An improved parameter regula falsi method for enclosing a zero of a function
    Applied Mathematical Sciences, 2012
  • On the modification of the p-RF method for inclusion of a zero of a function
    Applied Mathematical Sciences, 2011