porous wedge
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2021 ◽  
Vol 11 (22) ◽  
pp. 10855
Author(s):  
Usman Inayat ◽  
Shaukat Iqbal ◽  
Tareq Manzoor ◽  
Muhammad Fahad Zia

Nanoparticles are generally used to scatter and absorb solar radiations in nanofluid-based direct solar receivers to efficiently transport and store the heat. However, solar energy absorption in nanofluid can be enhanced by using differential materials and tuning nanofluid parameter. In this regard, theoretical investigations of unsteady homogeneous Hiemenz flow of an incompressible nanofluid having copper and silver nanoparticles over a porous wedge is carried out by using optimal homotopy asymptotic method (OHAM). Hence, a semi-analytical solver is applied to the transformed system to study the significance of magnetic field along with Prandtl number. In this work, impacts of conductive radiations, heat sink/source, unsteadiness, and flow parameters have been investigated for velocity and temperature profiles of copper and silver nanoparticles-based nanofluid. The effects of magnetic strength, volume fraction of nanoparticles, thermal conductivity, and flow parameters have also been studied on the considered nanofluids.


2021 ◽  
Vol 33 (1) ◽  
pp. 012003
Author(s):  
Peter L. Wright ◽  
Richard E. Wirz
Keyword(s):  

Author(s):  
Amina Panezai ◽  
Abdul Rehman ◽  
Naveed Sheikh ◽  
Saleem Iqbal ◽  
Israr Ahmed ◽  
...  

2018 ◽  
Vol 1 (1) ◽  
pp. 66
Author(s):  
Ramasamy Kandasamy ◽  
Nur Atikah bt Adnan ◽  
Mohd Kamarulzaki ◽  
Mohd Saifullah

<p>Energy is an extensive view for industrial advancement. Solar thermal energy is designed by light and heat which is radiated by the sun, in the form of electromagnetic radiation. Solar energy is the highest promptly and sufficiently applicable authority of green energy. Impact of nanoparticle shapes on the Hiemenz nanofluid (water-based Cu, Al2O3 and SWCNTs) flow over a porous wedge surface in view of solar radiation energy has been analyzed. The three classical form of nanoparticle shapes are registered into report, i.e. sphere (m=3.0), cylinder (m=6.3698) and laminar (m=16.1576). Nanoparticles in the water-based Cu, Al<sub>2</sub>O<sub>3</sub> and SWCNTs have been advanced as a means to boost solar collector energy through explicit absorption of the entering solar energy. The controlling partial differential equations (PDEs) are remodeled into ordinary differential equations (ODEs) by applying dependable accordance alteration and it is determined numerically by executing Runge Kutta Fehlberg method with shooting technique. It is anticipated that the lamina shape SWCNTs have dynamic heat transfer attainments in the flow improvement over a porous wedge surface as compared with the other nanoparticle shapes in different nanofluid flow regime.</p><p> </p>


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