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RISS 인기검색어
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- 저자 : Taseer Muhammad (검색결과 5 건)
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Ramzan Muhammad,Shahmir Nazia,Alotaibi Hammad,Ghazwani Hassan Ali S,Muhammad Taseer 한국CDE학회 2022 Journal of computational design and engineering Vol.9 No.1
This exploration aims to study the comparison of heat transfer capabilities of two nanofluid oblique, steady stagnation-point flow combinations comprising single-walled carbon/water (SWCNHs/water) and multiwalled carbon nanotube/water (MWCNTs/water) toward a stretching surface influenced by nonlinear thermal radiation employing the Xue model. This envisaged comparison model is inimitable and still scarce in the literature. Relying on the Tiwari–Das nanofluid model, a mathematical framework is constructed. The system of partial differential equations is converted using suitable transformations into an ordinary differential system of three equations, which is evaluated numerically using the bvp4c method. The physical behavior of significant parameters and their graphical representation are thoroughly examined. The results show that the SWCNHs/water nanofluid outperforms the MWCNTs/water nanofluid. It is further witnessed that SWCNH nanoparticle contained nanofluid has considerably greater thermal radiation than MWCNT nanoparticles. The envisaged model is also validated by comparing it with a published study.
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Akhter Parveen,Bhatti Taseer Yasrab,Shafiq Iqrash,Jamil Farrukh,Nazar Rabia,Nazir Muhammad Shahid,Hassan Sadaf Ul,Hussain Murid,박영권 한국화학공학회 2023 Korean Journal of Chemical Engineering Vol.40 No.12
Sea buckthorn (SBT) combines very fascinating nutritional composition with vital vitamins (A, C, E, D, K, and B complexes). Flavonoids, sterols, α-carotene, linoleic acid, and many more unsaturated fatty acids are present in the sea buckthorn plant. The organic extract of SBT seeds is commonly utilized as an anti-aging ingredient in numerous cosmetics. SBT oil extracts are used in pharmaceuticals that treat diseases like diabetes, cancer, cardiovascular disease, and neurological disorders, in addition to cosmetology. In this investigation, various concentrations of organic solvents such as n-hexane, isopropyl alcohol, ethyl acetate, ethanol, methanol, and ascorbic acid (standard) were used for the extraction of oil from sea buckthorn seeds. The antioxidant activity of such extracts was checked by the iron chelating, commonly known as the ferric chloride (FeCl3) method, which is based on the ferric reducing ability of plasma (FRAP) assay with the help of UV-Vis. Our results indicate that seed extract of Hippophae rhamnoides, should be considered as a non-toxic source and the ferric reducing ability of plasma (FRAP) assay is used to evaluate the anti-oxidant potential by various organic solvents. The highest (68%) of FRAP is scavenged by the ethyl acetate and least (53%) of isopropyl extracts.
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Numerical Investigations of Radiative Flow of Viscous Fluid Through Porous Medium
Tasawar Abbas,Bilal Ahmad,Aaqib Majeed,Taseer Muhammad,Muhammad Ismail 한국자기학회 2021 Journal of Magnetics Vol.26 No.3
This study incorporates the numerical behavior of radiative flow of electrically conductive viscous fluid though porous medium with slip effects. The boundary is supposed to be convective during the flow. The governing nonlinear partial differential equations are transformed into its corresponding ode’s with the help of suitable similarity transformations. Numerical technique is used to solve the system of ordinary differential equations. Effects of pertinent parameters on velocity and fluid temperature are plotted graphically. The velocity of fluid reduces due to opposing force offer by magnetic field whereas temperature rises.
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Dawar Abdullah,Wakif Abderrahim,Saeed Anwar,Shah Zahir,Muhammad Taseer,Kumam Poom 한국CDE학회 2022 Journal of computational design and engineering Vol.9 No.2
Motivated by the temporal relaxation feature of the Jeffrey model and its practical uses in the rheological modeling of several vital liquids, this study aimed to present a theoretical analysis of three-dimensional MHD Jeffrey nanofluid flows over a dual stretching surface with velocity slip conditions. By adopting the nonhomogeneous nanofluid model along with the passive control approach of nanoparticles, the current flow problem is solved semi-analytically via the homotopy analysis method for convective heating and multiple slip conditions. Dynamically, the magnetic and viscoelastic parameters have a declining effect on the velocity distributions in both directions in the existence and absence of slip effects, while the Deborah number has generally an escalating influence on the flow distributions. On the other hand, the variations of the velocity profiles in both directions are always greater in the presence of slip effect as compared to the nonslip case. Besides, the velocity stretching factor rises the velocity profiles in both directions. Furthermore, this increasing impact is dominant for the velocity distribution along the $y{\rm{-}}$direction as compared to the velocity field along the $x{\rm{-}}$direction. Thermally, the greater Biot number increases the temperature distribution. However, the bigger Schmidt number reduces the concentration distribution.
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Fouad Mallawi,Tasawar Abbas,Munazza Saeed,Bilal Ahmad,Taseer Muhammad 한국자기학회 2024 Journal of Magnetics Vol.29 No.1
The heat and mass transfer effects on steady two-dimensional magneto hydrodynamic flow of second-grade fluid is carried out in this study. Mathematical formulations for nonlinear flows over stretching surface in the presence of magnetic field, temperature dependent thermal conductivity, porous medium and convective boundary are carried out in Cartesian coordinate system. The model equations are determined by using fundamental laws of fluid mechanics. The governing PDEs for second-grade fluid have been derived and then transfigured into a system of nonlinear coupled ODEs via appropriate similarity transformation. The BVP is then solved by an efficient numerical scheme known as Runge Kutta Fehlberg method along with shooting technique. The outcomes are presented graphically and tabulated with the aim of illustrating the physical impacts of governing parameters on the temperature, concentration, and velocity profiles. Greater Prandtl numbers result in a decrease in temperature, while higher values of thermal conductivity and coefficient of internal heat absorption all result in an increase in temperature. Further, comparison of the results with published literature for limited cases show the validity of numerical technique.
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