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  1. AU="N. Ameer Ahammad"
  2. AU=Schmelzle T AU=Schmelzle T
  3. AU="MacIntosh, Josephine"
  4. AU="Dinh, Thị Thanh Thuy"
  5. AU="Silva, José A C"
  6. AU="Wieland, I"
  7. AU="I. L. Smirnova"
  8. AU=Mayer Gert
  9. AU="Burns, Jane"
  10. AU="Lin, Yung-Chun"
  11. AU="van de Klundert, Manouk A W"
  12. AU="Rustam, F R Mohammed"
  13. AU="Zhou, Jialiang"
  14. AU="Galotto, María José"
  15. AU="Hackell, Jesse M"
  16. AU=Nathan Carl
  17. AU="de Vasconcelos, Paulo R L"
  18. AU="Rhebergen, Koenraad S"
  19. AU="Bo Wen"
  20. AU=Brown C. Hendricks
  21. AU="Bacchetta, N."
  22. AU="Marquis, Krista"
  23. AU="Milena Alec"
  24. AU="Carfagna, Charles S"
  25. AU="Chakraborti, Udipta"
  26. AU="Uson, Jesus"
  27. AU="Riotto, A W"
  28. AU="Candel, Bart Gj"
  29. AU="Brinken, Tatjana"
  30. AU="Korkmaz, Asli"

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  1. Artikel ; Online: Unsteady MHD third-grade fluid past an absorbent high-temperature shrinking sheet packed with silver nanoparticles and non-linear radiation

    M. Veera Krishna / N. Ameer Ahammad / Ebrahem A. Algehyne

    Journal of Taibah University for Science, Vol 16, Iss 1, Pp 585-

    2022  Band 593

    Abstract: This investigation peruses the features of temperature and mass transport of the non-Newtonian third-order liquid over an absorbent convective temperature shrinking sheet. The sheet is packed with silver nanoparticles. The Buongiornos modelling uses a ... ...

    Abstract This investigation peruses the features of temperature and mass transport of the non-Newtonian third-order liquid over an absorbent convective temperature shrinking sheet. The sheet is packed with silver nanoparticles. The Buongiornos modelling uses a particular non-Newtonian third-order liquid with the Brownian movement and the thermophoresis consequences using the non-linear radiation. The non-linear partial differential equations are changed to the ordinary differential equations with similarity transformations. The changed system of equations is then resolved using the numerical Shooting method and the sixth-order Runge-Kutta’s method. The numerically obtained solutions of the velocity profiles, temperature distributions, and concentrations of nanoparticles are discussed graphically. Also, the non-Newtonian parameter reduced the velocity of the liquid, increased the temperature and the concentration profiles throughout the fluid. Ultimately, the qualified systematic analysis is built by the preceding study in restrictive cases and displaingy the best correlation.
    Schlagwörter Nanofluid ; third-grade fluid ; magnetic field ; shooting technique ; Runge–Kutta method ; Science (General) ; Q1-390
    Thema/Rubrik (Code) 532
    Sprache Englisch
    Erscheinungsdatum 2022-12-01T00:00:00Z
    Verlag Taylor & Francis Group
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Finite Difference Computation of Au-Cu/Magneto-Bio-Hybrid Nanofluid Flow in an Inclined Uneven Stenosis Artery

    H. Thameem Basha / Karthikeyan Rajagopal / N. Ameer Ahammad / S. Sathish / Sreedhara Rao Gunakala

    Complexity, Vol

    2022  Band 2022

    Abstract: The present study addresses the fluid transport behaviour of the flow of gold (Au)-copper (Cu)/biomagnetic blood hybrid nanofluid in an inclined irregular stenosis artery as a consequence of varying viscosity and Lorentz force. The nonlinear flow ... ...

    Abstract The present study addresses the fluid transport behaviour of the flow of gold (Au)-copper (Cu)/biomagnetic blood hybrid nanofluid in an inclined irregular stenosis artery as a consequence of varying viscosity and Lorentz force. The nonlinear flow equations are transformed into dimensionless form by using nonsimilar variables. The finite-difference technique (FTCS) is involved in computing the nonlinear transport dimensionless equations. The significant parameters like angle parameter, the Hartmann number, changing viscosity, constant heat source, the Reynolds number, and nanoparticle volume fraction on the flow field are exhibited through figures. Present results disclose that the Lorentz force strongly lessens the hybrid nanofluid velocity. Elevating the Grashof number values enhances the rate of blood flow. Growing values of the angle parameter cause to reduce the resistance impedance on the wall. Hybrid nanoparticles have a superior wall shear stress than copper nanoparticles. The heat transfer rate is amplifying at the axial direction with the growing values of nanoparticles concentration. The applied Lorentz force significantly reduces the hybrid and unitary nanofluid flow rate in the axial direction. The hybrid nanoparticles expose a supreme rate of heat transfer than the copper nanoparticles in a blood base fluid. Compared to hybrid and copper nanofluid, the blood base fluid has a lower temperature.
    Schlagwörter Electronic computers. Computer science ; QA75.5-76.95
    Thema/Rubrik (Code) 532
    Sprache Englisch
    Erscheinungsdatum 2022-01-01T00:00:00Z
    Verlag Hindawi-Wiley
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  3. Artikel ; Online: Natural convection in nanofluid flow with chemotaxis process over a vertically inclined heated surface

    Fuzhang Wang / Awais Ahmed / Muhammad Naveed Khan / N. Ameer Ahammad / Aisha M. Alqahtani / Sayed M Eldin / Mostafa A. H. Abdelmohimen

    Arabian Journal of Chemistry, Vol 16, Iss 4, Pp 104599- (2023)

    2023  

    Abstract: The thermal energy transport analysis with chemotaxis in the free convective flow of viscous nanofluid over stretchable vertically inclined heated sheet is addressed in this article. The fluid forced and free convection motion is investigated and ... ...

    Abstract The thermal energy transport analysis with chemotaxis in the free convective flow of viscous nanofluid over stretchable vertically inclined heated sheet is addressed in this article. The fluid forced and free convection motion is investigated and discussed with physical reasoning. The fluid also contains microorganism heavy-bottom species, and their chemotactic motion is studied. In the light of Buongiorno model, the impact of Brownian motion and thermophoresis slip mechanism on thermal conduction in the nanofluid is analyzed. The work is based on the similarity analysis of governing partial differential equations (PDEs) which lead to non-dimensional ordinary differential equations (ODEs). The solution of resulting flow and heat equations is computed via bvp4c technique. The outcomes are represented in graphical abstract. It is noted that free convective flow field increases near to the surface of sheet then it decays to free stream exponentially. Higher magnitude of thermophoretic force boost up the thermal energy transport in nanofluid flow. The Brownian motion enhances temperature profile and lower down the convection velocity. Chemotaxis motion of species in nanofluid is increasing function of bioconvective Peclet number.
    Schlagwörter Free convective ; Buongiorno model ; Microorganism ; Brownian motion and thermophoresis ; Inclined vertical sheet ; Chemistry ; QD1-999
    Thema/Rubrik (Code) 532
    Sprache Englisch
    Erscheinungsdatum 2023-04-01T00:00:00Z
    Verlag Elsevier
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  4. Artikel ; Online: Author Correction

    Kamel Guedri / N. Ameer Ahammad / Sohail Nadeem / ElSayed M. Tag-ElDin / Aziz Ullah Awan / Mansour F. Yassen

    Scientific Reports, Vol 12, Iss 1, Pp 1-

    Insight into the heat transfer of third-grade micropolar fluid over an exponentially stretched surface

    2022  Band 1

    Schlagwörter Medicine ; R ; Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2022-11-01T00:00:00Z
    Verlag Nature Portfolio
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  5. Artikel ; Online: Significance of Thermal Phenomena and Mechanisms of Heat Transfer through the Dynamics of Second-Grade Micropolar Nanofluids

    Aziz Ullah Awan / N. Ameer Ahammad / Bagh Ali / ElSayed M. Tag-ElDin / Kamel Guedri / Fehmi Gamaoun

    Sustainability, Vol 14, Iss 15, p

    2022  Band 9361

    Abstract: Due to their unique microstructures, micropolar fluids have attracted enormous attention due to their potential for industrial application, including convective heat and mass transfer polymer production and the rigid and random cooling of particles for ... ...

    Abstract Due to their unique microstructures, micropolar fluids have attracted enormous attention due to their potential for industrial application, including convective heat and mass transfer polymer production and the rigid and random cooling of particles for metallic sheets. In this context, a micropolar second-grade fluid flow over a vertical Riga plate is investigated for hidden microstructures. The novelty of the flow model allows us to explore the significance of Brownian motion and thermophoresis on the dynamics of non-Newtonian fluid. A mathematical model is developed under the flow assumptions for micropolar second-grade fluid over a vertical Riga plate of PDEs, reducing them into ODEs by invoking similarity techniques. The acquired system of non-linear ODEs is elucidated numerically using bvp4c methodology. Furthermore, comparative tables are generated to confirm the bvp4c technique, ensuring the accuracy of our numerical approach. This rheological study of micropolar second-grade fluid suggests that temperature distribution increases due to variations in the micropolar parameter ( K ), Eckert number ( Ec ), and the thermophoresis parameter ( Nt ), and the concentration distribution (Φ( η )) keeps rising against the boosting values of Brownian motion ( Nb ); however, the inverse trend is noted against thermophoresis ( Nt ).
    Schlagwörter second-grade fluid ; buongiorno model ; Riga plate ; stretch surface ; numerical analysis ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
    Thema/Rubrik (Code) 532
    Sprache Englisch
    Erscheinungsdatum 2022-07-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  6. Artikel ; Online: Bio-Convection Effects on Prandtl Hybrid Nanofluid Flow with Chemical Reaction and Motile Microorganism over a Stretching Sheet

    Syed Asif Ali Shah / N. Ameer Ahammad / ElSayed M. Tag El Din / Fehmi Gamaoun / Aziz Ullah Awan / Bagh Ali

    Nanomaterials, Vol 12, Iss 13, p

    2022  Band 2174

    Abstract: This study aims to determine the heat transfer properties of a magnetohydrodynamic Prandtl hybrid nanofluid over a stretched surface in the presence of bioconvection and chemical reaction effects. This article investigates the bio-convection, inclined ... ...

    Abstract This study aims to determine the heat transfer properties of a magnetohydrodynamic Prandtl hybrid nanofluid over a stretched surface in the presence of bioconvection and chemical reaction effects. This article investigates the bio-convection, inclined magnetohydrodynamic, thermal linear radiations, and chemical reaction of hybrid nanofluid across stretching sheets. Also, the results are compared with the nanofluid flow. Moreover, the non-Newtonian fluid named Prandtl fluid is considered. Microfluidics, industry, transportation, the military, and medicine are just a few of the real-world applications of hybrid nanofluids. Due to the nonlinear and convoluted nature of the governing equations for the problem, similarity transformations are used to develop a simplified mathematical model with all differential equations being ordinary and asymmetric. The reduced mathematical model is computationally analyzed using the MATLAB software package’s boundary value problem solver, Runge-Kutta-fourth-fifth Fehlberg’s order method. When compared to previously published studies, it is observed that the acquired results exhibited a high degree of symmetry and accuracy. The velocity profiles of basic nanofluid and hybrid nanofluid are increased by increasing the Prandtl parameters’ values, which is consistent with prior observations. Additionally, the concentration and temperature of simple and hybrid nanofluids increase with the magnetic parameter values.
    Schlagwörter hybrid nanofluid ; bioconvection ; modified Buongiorno’s model ; RK-method ; Chemistry ; QD1-999
    Thema/Rubrik (Code) 532
    Sprache Englisch
    Erscheinungsdatum 2022-06-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  7. Artikel ; Online: Significance low oscillating magnetic field and Hall current in the nano-ferrofluid flow past a rotating stretchable disk

    Muhammad Ramzan / Saima Riasat / Yan Zhang / Kottakkaran Sooppy Nisar / Irfan Anjum Badruddin / N. Ameer Ahammad / Hassan Ali S. Ghazwani

    Scientific Reports, Vol 11, Iss 1, Pp 1-

    2021  Band 13

    Abstract: Abstract The present investigation involves the Hall current effects past a low oscillating stretchable rotating disk with Joule heating and the viscous dissipation impacts on a Ferro-nanofluid flow. The entropy generation analysis is carried out to ... ...

    Abstract Abstract The present investigation involves the Hall current effects past a low oscillating stretchable rotating disk with Joule heating and the viscous dissipation impacts on a Ferro-nanofluid flow. The entropy generation analysis is carried out to study the impact of rotational viscosity by applying a low oscillating magnetic field. The model gives the continuity, momentum, temperature, magnetization, and rotational partial differential equations. These equations are transformed into the ODEs and solved by using bvp4c MATLAB. The graphical representation of arising parameters such as effective magnetization and nanoparticle concentration on thermal profile, velocity profile, and rate of disorder along with Bejan number is presented. Drag force and the heat transfer rate are given in the tabular form. It is comprehended that for increasing nanoparticle volume fraction and magnetization parameter, the radial, and tangential velocity reduce while thermal profile surges. The comparison of present results for radial and axial velocity profiles with the existing literature shows approximately the same results.
    Schlagwörter Medicine ; R ; Science ; Q
    Thema/Rubrik (Code) 532
    Sprache Englisch
    Erscheinungsdatum 2021-12-01T00:00:00Z
    Verlag Nature Portfolio
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  8. Artikel ; Online: Heat Transfer and Entropy in a Vertical Porous Plate Subjected to Suction Velocity and MHD

    N. Ameer Ahammad / Irfan Anjum Badruddin / Sarfaraz Kamangar / H.M.T. Khaleed / C. Ahamed Saleel / Teuku Meurah Indra Mahlia

    Entropy, Vol 23, Iss 1069, p

    2021  Band 1069

    Abstract: This article presents an investigation of heat transfer in a porous medium adjacent to a vertical plate. The porous medium is subjected to a magnetohydrodynamic effect and suction velocity. The governing equations are nondepersonalized and converted into ...

    Abstract This article presents an investigation of heat transfer in a porous medium adjacent to a vertical plate. The porous medium is subjected to a magnetohydrodynamic effect and suction velocity. The governing equations are nondepersonalized and converted into ordinary differential equations. The resulting equations are solved with the help of the finite difference method. The impact of various parameters, such as the Prandtl number, Grashof number, permeability parameter, radiation parameter, Eckert number, viscous dissipation parameter, and magnetic parameter, on fluid flow characteristics inside the porous medium is discussed. Entropy generation in the medium is analyzed with respect to various parameters, including the Brinkman number and Reynolds number. It is noted that the velocity profile decreases in magnitude with respect to the Prandtl number, but increases with the radiation parameter. The Eckert number has a marginal effect on the velocity profile. An increased radiation effect leads to a reduced thermal gradient at the hot surface.
    Schlagwörter porous medium ; vertical plate ; entropy ; MHD ; Science ; Q ; Astrophysics ; QB460-466 ; Physics ; QC1-999
    Thema/Rubrik (Code) 532
    Sprache Englisch
    Erscheinungsdatum 2021-08-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  9. Artikel ; Online: The Dynamics of Water-Based Nanofluid Subject to the Nanoparticle’s Radius with a Significant Magnetic Field

    Bagh Ali / N. Ameer Ahammad / Aziz Ullah Awan / Abayomi S. Oke / ElSayed M. Tag-ElDin / Farooq Ahmed Shah / Sonia Majeed

    Sustainability, Vol 14, Iss 10474, p

    The Case of Rotating Micropolar Fluid

    2022  Band 10474

    Abstract: This article investigates the significance of varying radius of copper nanoparticles for non-Newtonian nanofluid flow due to an extending sheet in the presence of a magnetic field and porous medium. The modern technological applications of non-Newtonian ... ...

    Abstract This article investigates the significance of varying radius of copper nanoparticles for non-Newtonian nanofluid flow due to an extending sheet in the presence of a magnetic field and porous medium. The modern technological applications of non-Newtonian nanofluids have attracted researchers in the current era. So, the impacts of the radius of nanoparticles with micropolar fluid have been taken into consideration. Three-dimensional leading equations (PDEs) for momentum, concentration, and temperature are transformed into ODEs by applying the appropriate similarity transformation. The numerical approach bvp4c is applied to obtain the problem’s solution numerically. The influence of the nanoparticles’ radius and various physical parameters on the microrotation, velocity, and temperature profile are analyzed. The velocity profile decreases against the magnetic field (M), rotational parameter ( <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mo>Γ</mo></semantics></math> ), and Forchheimer number (Fr), but the temperature distribution has increasing behavior for these parameters, and the microrotation is augmented for rising inputs of the magnetic parameter and boundary parameter ( <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>β</mi></semantics></math> ). It is also observed that the temperature reduces against the material parameter (∇) and Forchheimer number ( <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>F</mi><mi>r</mi></mrow></semantics></math> ). The skin friction coefficients and Nusselt number decrease against the growing strength of the Forchheimer number <math xmlns="http://www.w3.org/1998/Math/MathML" ...<br />
    Schlagwörter micropolar fluid ; rotating frame ; MHD ; porous sheet ; nanoparticle radius ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
    Thema/Rubrik (Code) 532
    Sprache Englisch
    Erscheinungsdatum 2022-08-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  10. Artikel ; Online: Insight into the Role of Nanoparticles Shape Factors and Diameter on the Dynamics of Rotating Water-Based Fluid

    Asia Ali Akbar / N. Ameer Ahammad / Aziz Ullah Awan / Ahmed Kadhim Hussein / Fehmi Gamaoun / ElSayed M. Tag-ElDin / Bagh Ali

    Nanomaterials, Vol 12, Iss 16, p

    2022  Band 2801

    Abstract: This article addresses the dynamic of three-dimensional rotating flow of Maxwell nanofluid across a linearly stretched sheet subject to a water-based fluid containing copper nanoparticles. Nanoparticles are used due to their fascinating features, such as ...

    Abstract This article addresses the dynamic of three-dimensional rotating flow of Maxwell nanofluid across a linearly stretched sheet subject to a water-based fluid containing copper nanoparticles. Nanoparticles are used due to their fascinating features, such as exceptional thermal conductivity, which is crucial in modern nanotechnology and electronics. The primary goal of this comprehensive study is to examine the nanoparticles size and shape factors effect on the base fluid temperature. The mathematical model contains the governing equations in three dimensional partial differential equations form, and these equations transformed into dimensionless ordinary dimensional equations via suitable similarity transformation. The bvp4c technique is harnessed and coded in Matlab script to obtain a numerical solution of the coupled non-linear ordinary differential problem. It is observed that the greater input of rotating, Deborah number, and magnetic parameters caused a decline in the fluid primary and secondary velocities, but the nanoparticles concentration enhanced the fluid temperature. Further, a substantial increment in the nanofluid temperature is achieved for the higher nanoparticle’s diameter and shape factors.
    Schlagwörter stretching surface ; magnetohydrodynamics ; rotating Maxwell fluid ; nanofluid ; nanoparticles diameter ; Chemistry ; QD1-999
    Thema/Rubrik (Code) 532
    Sprache Englisch
    Erscheinungsdatum 2022-08-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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