scholarly journals INVESTIGATION ON CNTS-WATER AND HUMAN BLOOD BASED CASSON NANOFLUID FLOW OVER A STRETCHING SHEET UNDER IMPACT OF MAGNETIC FIELD

2020 ◽  
Vol 14 ◽  
Author(s):  
Hamzeh T. Alkasasbeh ◽  
Mohammed Z. Swalmeh ◽  
Hebah G. Bani Saeed ◽  
Feras M. Al Faqih ◽  
Adeeb G. Talafha
Keyword(s):  
Magnetic Field ◽  
Human Blood ◽  
Stretching Sheet ◽  
Nanofluid Flow ◽  
Casson Nanofluid

Bio-convective viscoelastic Casson nanofluid flow over a stretching sheet in the presence of induced magnetic field with Cattaneo–Christov double diffusion

2021 ◽  
Author(s):  
Riya Ghosh ◽  
Titilayo M. Agbaje ◽  
Sabyasachi Mondal ◽  
Sachin Shaw
Keyword(s):  
Magnetic Field ◽  
Stretching Sheet ◽  
Hydrodynamic Instability ◽  
Numerical Data ◽  
Lewis Number ◽  
Double Diffusion ◽  
Governing Equations ◽  
Induced Magnetic Field ◽  
Nanofluid Flow ◽  
Casson Nanofluid

Bio-convection is an important phenomenon which is described by hydrodynamic instability and pattern in suspension of biased swimming microorganisms. This hydrodynamics instability arises due to the coupling force between the motion of the micoorganisms and fluid flow. It becomes more significant when nanoparticles are immersed in the base fluid with non-Newtonian rheology. This study presents the bio-convection for a viscoelastic Casson nanofluid flow over a stretching sheet. The Cattaneo–Christov double diffusion, induced magnetic field, thermal radiation, heat generation, viscous dissipation and chemical reaction are taken into account. The boundary condition is enriched with the suction / injection and melting phenomena at the surface. Highly coupled nonlinear governing equations are simplified into a system of coupled ordinary differential equation by using proper similarity transformation. The spectral quasi-linearization method (SQLM) is used to solve the transformed governing equations numerically. Good agreement is observed with the numerical data investigated in the previous outstanding works. It is observed that the density of the motile microorganisms depends on Peclet number and bio-convective Lewis number. Bio-convection Rayleigh number increases the possibility of bio-convection in the system which results in the enhancement of temperature. It is also examined that temperature and concentration profiles increase with the Eckert number and thermophoresis parameter.

scholarly journals A Computational Analysis of Two-Phase Casson Nanofluid Passing a Stretching Sheet Using Chemical Reactions and Gyrotactic Microorganisms

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Zulqurnain Sabir ◽  
Rizwan Akhtar ◽  
Zhu Zhiyu ◽  
Muhammad Umar ◽  
Ali Imran ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Porous Media ◽  
Nusselt Number ◽  
Chemical Reactions ◽  
Stretching Sheet ◽  
Field Parameter ◽  
Two Phase ◽  
Gyrotactic Microorganisms ◽  
Magnetic Field Parameter ◽  
Casson Nanofluid

In this study, an attempt is made to explore the two-phase Casson nanofluid passing through a stretching sheet along a permeable surface with the effects of chemical reactions and gyrotactic microorganisms. By utilizing the strength of similarity transforms the governing PDEs are transformed into set of ODEs. The resulting equations are handled by using a proficient numerical scheme known as the shooting technique. Authenticity of numerical outcomes is established by comparing the achieved results with the MATLAB built-in solver bvp4c. The numerical outcomes for the reduced Nusselt number and Sherwood number are exhibited in the tabular form, while the variations of some crucial physical parameters on the velocity, temperature, and concentration profiles are demonstrated graphically. It is observed that Local Nusselt number rises with the enhancement in the magnetic field parameter, the porous media parameter, and the chemical reactions, while magnetic field parameter along with porous media parameter retards the velocity profile.

Influence of Double Stratification on MHD Three Dimensional Casson Nanofluid Flow Over a Stretching Sheet: A Numerical Study

2017 ◽  
Vol 6 (1) ◽  
pp. 71-79 ◽  
Author(s):  
Gnaneswara Reddy Machireddy ◽  
Padma Polarapu ◽  
Rama Subba Reddy Gorla
Keyword(s):  
Stretching Sheet ◽  
Numerical Study ◽  
Three Dimensional ◽  
Double Stratification ◽  
Nanofluid Flow ◽  
Casson Nanofluid
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