scholarly journals Cattaneo-Christov heat flux and entropy generation on hybrid nanofluid flow in a nozzle of rocket engine with melting heat transfer

2021 ◽  
pp. 101504
Author(s):  
Hassan Waqas ◽  
Taseer Muhammad ◽  
Sobia Noreen ◽  
Umar Farooq ◽  
Metib Alghamdi
Keyword(s):  
Heat Transfer ◽  
Heat Flux ◽  
Entropy Generation ◽  
Rocket Engine ◽  
Hybrid Nanofluid ◽  
Nanofluid Flow ◽  
Melting Heat ◽  
Melting Heat Transfer

scholarly journals Melting heat transfer of a magnetized water-based hybrid nanofluid flow past over a stretching/shrinking wedge

2021 ◽  
pp. 101674
Author(s):  
Nadia Kakar ◽  
Asma Khalid ◽  
Amnah S. Al-Johani ◽  
Nawa Alshammari ◽  
Ilyas Khan
Keyword(s):  
Heat Transfer ◽  
Hybrid Nanofluid ◽  
Nanofluid Flow ◽  
Melting Heat ◽  
Flow Past ◽  
Melting Heat Transfer ◽  
Magnetized Water ◽  
Water Based

Melting heat transfer of a hybrid nanofluid flow towards a stagnation point region with second-order slip

2020 ◽  
pp. 095440892096121
Author(s):  
Iskandar Waini ◽  
Anuar Ishak ◽  
Ioan Pop
Keyword(s):  
Heat Transfer ◽  
Stagnation Point ◽  
Numerical Solutions ◽  
Temporal Stability ◽  
Second Order ◽  
Hybrid Nanoparticles ◽  
Hybrid Nanofluid ◽  
Nanofluid Flow ◽  
Melting Heat ◽  
Melting Heat Transfer

This paper examines the behaviour of a hybrid nanofluid flow towards a stagnation point on a stretching or shrinking surface with second-order slip and melting heat transfer effects. Copper (Cu) and alumina (Al2O3) are considered as the hybrid nanoparticles while water as the base fluid. The governing equations are reduced to the similarity equations using similarity transformations. The resulting equations are programmed in MATLAB software through the bvp4c solver to obtain the numerical solutions. The results reveal that two solutions are possible for the shrinking case [Formula: see text], where the bifurcation of the solutions occurs in this region. Moreover, the heat transfer rate and the skin friction coefficient enhance with the rise of the melting parameter. Meanwhile, these quantities decrease for a smaller second-order slip parameter. The temporal stability analysis shows that only one of the two solutions is stable as time evolves.

Melting heat transfer in hybrid nanofluid flow along a moving surface

2020 ◽  
Author(s):  
Najiyah Safwa Khashi’ie ◽  
Norihan Md Arifin ◽  
Ioan Pop ◽  
Roslinda Nazar
Keyword(s):  
Heat Transfer ◽  
Hybrid Nanofluid ◽  
Nanofluid Flow ◽  
Moving Surface ◽  
Melting Heat ◽  
Melting Heat Transfer

scholarly journals Impact of Nonlinear Chemical Reaction and Melting Heat Transfer on an MHD Nanofluid Flow over a Thin Needle in Porous Media

2019 ◽  
Vol 9 (24) ◽  
pp. 5492 ◽  
Author(s):  
Muhammad Ramzan ◽  
Hina Gul ◽  
Seifedine Kadry ◽  
Chhayly Lim ◽  
Yunyoung Nam ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Chemical Reaction ◽  
Flow Analysis ◽  
Slip Boundary Condition ◽  
Stream Velocity ◽  
Nanofluid Flow ◽  
Melting Heat ◽  
Slip Boundary ◽  
Melting Heat Transfer ◽  
The Impact

A novel mathematical model is envisioned discussing the magnetohydrodynamics (MHD) steady incompressible nanofluid flow with uniform free stream velocity over a thin needle in a permeable media. The flow analysis is performed in attendance of melting heat transfer with nonlinear chemical reaction. The novel model is examined at the surface with the slip boundary condition. The compatible transformations are affianced to attain the dimensionless equations system. Illustrations depicting the impact of distinct parameters versus all involved profiles are supported by requisite deliberations. It is perceived that the melting heat parameter has a declining effect on temperature profile while radial velocity enhances due to melting.

Hybrid nanofluid flow and heat transfer past a vertical thin needle with prescribed surface heat flux

2019 ◽  
Vol 29 (12) ◽  
pp. 4875-4894 ◽  
Author(s):  
Iskandar Waini ◽  
Anuar Ishak ◽  
Ioan Pop
Keyword(s):  
Heat Transfer ◽  
Heat Flux ◽  
Surface Heat Flux ◽  
Surface Heat ◽  
Dual Solutions ◽  
Hybrid Nanofluid ◽  
Nanofluid Flow ◽  
Needle Size ◽  
Content Type ◽  
Flow And Heat Transfer

Purpose The purpose of this paper is to study the steady mixed convection hybrid nanofluid flow and heat transfer past a vertical thin needle with prescribed surface heat flux. Design/methodology/approach The governing partial differential equations are transformed into a set of ordinary differential equations by using a similarity transformation. The transformed equations are then solved numerically using the boundary value problem solver (bvp4c) in Matlab software. The features of the skin friction coefficient and the local Nusselt number as well as the velocity and temperature profiles for different values of the governing parameters are analyzed and discussed. Findings It is found that dual solutions exist for a certain range of the mixed convection parameter where its critical values decrease with the increasing of the copper (Cu) nanoparticle volume fractions and for the smaller needle size. It is also observed that the increasing of the copper (Cu) nanoparticle volume fractions and the decreasing of the needle size tend to enhance the skin friction coefficient and the local Nusselt number on the needle surface. A temporal stability analysis is performed to determine the stability of the dual solutions in the long run, and it is revealed that only one of them is stable, while the other is unstable. Originality/value The problem of hybrid nanofluid flow and heat transfer past a vertical thin needle with prescribed surface heat flux is the important originality of the present study where the dual solutions for the opposing flow are obtained.

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