Browsing by Author "Galal, Ahmed M."

Now showing 1 - 4 of 4

Citation - WoS: 4
Citation - Scopus: 5
Analysis of Multiple Slip Effects on Mhd Blood Peristaltic Flow of Phan-Thien Nanofluid Through an Asymmetric Channel
(World Scientific Publ Co Pte Ltd, 2023) Baleanu, Dumitru; Vaidya, Hanumesh; Prasad, K. V.; Khan, M. Ijaz; Bafakeeh, Omar T.; Galal, Ahmed M.; Choudhari, Rajashekhar; 56389; 02.02. Matematik; 02. Fen-Edebiyat Fakültesi; 01. Çankaya Üniversitesi
The primary focus of this paper is to model the MHD peristaltic flow of Phan-Thien-Tanner nanofluid in an asymmetric channel while taking into account multiple slip effects. Approximations based on a long wavelength and a low Reynolds number are used to transform the governing partial differential equations into nonlinear and coupled differential equations. It is possible to obtain an exact solution to the problem of the distribution of temperature and the distribution of nanoparticle concentration. The perturbation technique is employed to solve the nonlinear velocity distribution. The graphical analysis illustrates the effects that essential and relevant parameters have on the velocity field, temperature distribution, nanoparticle concentration, skin friction coefficient, Nusselt number, Sherwood number, pressure rise, and trapping phenomena. The results that were obtained are essential to comprehending the rheology of blood.
Corrigendum To “Numerical Investigation of Magneto-Thermal Impact on Phase Change Phenomenon of Nano-PCM Within a Hexagonal Shaped Thermal Energy Storage” [Appl. Thermal Eng., (2023) 223, 119984](s1359431123000133)(10.1016/J.applthermaleng.2023.119984)
(Pergamon-Elsevier Science Ltd, 2025) Izadi, Mohsen; Sheremet, Mikhail; Hajjar, Ahmad; Galal, Ahmed M.; Mahariq, Ibrahim; Jarad, Fahd; Hamida, Mohamed Bechir Ben; 02.02. Matematik; 02. Fen-Edebiyat Fakültesi; 01. Çankaya Üniversitesi
Citation - WoS: 44
Citation - Scopus: 53
Numerical Investigation of Magneto-Thermal Impact on Phase Change Phenomenon of Nano-Pcm Within a Hexagonal Shaped Thermal Energy Storage
(Pergamon-elsevier Science Ltd, 2023) Sheremet, Mikhail; Hajjar, Ahmad; Galal, Ahmed M.; Mahariq, Ibrahim; Jarad, Fahd; Ben Hamida, Mohamed Bechir; Izadi, Mohsen; 234808; 02.02. Matematik; 02. Fen-Edebiyat Fakültesi; 01. Çankaya Üniversitesi
Latent heat storage is among the most effective thermal energy storage techniques. The heat can be stored or released in a phase change substance undergoing melting or solidification. The present research addresses the melting process of paraffin, a phase change material, enhanced with metallic alumina nanoparticles, inside a hexagonal heat storage unit in the presence of a uniform magnetic field is investigated. The melting process occurs during the thermal charge of the latent heat storage unit. The enthalpy-porosity method was employed to model the melting process. The influence of the Lorentz force strength and magnetic field inclination angle as well as the nanoparticle concentration on charging level was scrutinized. It was found that the Lorentz force can suppress the charging level of the thermal energy storage system, while the magnetic field inclination angle can be suitable to control the energy transport performance and melting motion within the thermal energy storage unit. Moreover, raising the nanoadditives concentration diminishes the melting process. Overall, the obtained results confirmed that altering the intensity or direction of the external magnetic field presents indeed a mean for controlling the flow and thermal behavior of nano-enhanced phase change materials. Imposing the Ha up to 500 increases 266% the dimensionless melting time compared to ignoring magnetic field (Ha = 0).
Citation - WoS: 12
Citation - Scopus: 17
On Electro-Osmosis in Peristaltic Blood Flow of Magnetohydrodynamics Carreau Material With Slip and Variable Material Characteristics
(World Scientific Publ Co Pte Ltd, 2023) Choudhari, Rajashekhar; Baleanu, Dumitru; Prasad, K., V; Shivaleela; Khan, M. Ijaz; Galal, Ahmed M.; Vaidya, Hanumesh; 56389; 02.02. Matematik; 02. Fen-Edebiyat Fakültesi; 01. Çankaya Üniversitesi
The study of electro-osmosis, peristalsis and heat transfer with numerous slips, such as velocity slip, thermal slip and concentration slip, may be used to construct biomimetic thermal pumping systems at the microscale of interest in physiological transport phenomena. A mathematical model has been developed to investigate magnetohydrodynamics non-Newtonian (Carreau fluid) flow induced by the forces to produce a pressure gradient. The walls of the microchannels erode as they expand. The Poisson and Nernst-Planck equations are used to model electro-osmotic processes. This procedure results in Boltzmann circulation of the electric potential across the electric double layer. The governing equations are simplified by approximations such as a low Reynolds number and a long wavelength. The ND Solver in Mathematica simulates and compares simplified coupled nonlinear governing equations. We investigate novel physical parameters affecting flow, heat transfer and pumping. Additionally, a fundamental peristaltic pumping phenomenon known as trapping is graphically provided and briefly discussed. The model's findings show that the velocity increases as the electric field intensifies, implying that electro-osmosis may improve peristaltic flow.