Heat Transfer in a Nanoliquid Flow Due to a Permeable Quadratically Stretching Sheet

Forced flow of an electrically conducting Newtonian fluid due to an exponentially stretching sheet is studied numerically. Free stream velocity is present and so is suction at the sheet. The governing coupled, nonlinear, partial differential equations of flow and heat transfer are converted into coupled, nonlinear, ordinary differential equations by similarity transformation and are solved numerically using shooting method, and curve fitting on the data is done by differential transform method together with Padé approximation. Prescribed exponential order surface temperature (PEST) and prescribed exponential order surface heat flux are considered for investigation of heat transfer related quantities. The influence of Chandrasekhar number, suction/injection parameter, and freestream parameter on heat transport is presented and discussed. Coefficient of friction and heat transport is also evaluated in the study. The results are of interest in extrusions and such other processes.

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Flow and heat transfer of dusty hyperbolic tangent fluid over a stretching sheet in the presence of thermal radiation and magnetic field

International Journal of Mechanical and Materials Engineering ◽

10.1186/s40712-018-0088-8 ◽

2018 ◽

Vol 13 (1) ◽

Cited By ~ 16

Author(s):

K. Ganesh Kumar ◽

B. J. Gireesha ◽

R. S. R. Gorla

Keyword(s):

Magnetic Field ◽

Heat Transfer ◽

Thermal Radiation ◽

Stretching Sheet ◽

Hyperbolic Tangent ◽

Flow And Heat Transfer

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Numerical simulation of variable thermal conductivity on 3D flow of nanofluid over a stretching sheet

Nonlinear Engineering ◽

10.1515/nleng-2020-0011 ◽

2020 ◽

Vol 9 (1) ◽

pp. 233-243 ◽

Cited By ~ 3

Author(s):

Nainaru Tarakaramu ◽

P.V. Satya Narayana ◽

Bhumarapu Venkateswarlu

Keyword(s):

Heat Transfer ◽

Thermal Conductivity ◽

Stretching Sheet ◽

Three Dimensional ◽

Variable Thermal Conductivity ◽

Normal Velocity ◽

Transfer Coefficients ◽

Similarity Transformations ◽

Frictional Coefficients ◽

The Impact

AbstractThe present investigation deals with the steady three-dimensional flow and heat transfer of nanofluids due to stretching sheet in the presence of magnetic field and heat source. Three types of water based nanoparticles namely, copper (Cu), aluminium oxide (Al2O3), and titanium dioxide (TiO2) are considered in this study. The temperature dependent variable thermal conductivity and thermal radiation has been introduced in the energy equation. Using suitable similarity transformations the dimensional non-linear expressions are converted into dimensionless system and are then solved numerically by Runge-Kutta-Fehlberg scheme along with well-known shooting technique. The impact of various flow parameters on axial and transverse velocities, temperature, surface frictional coefficients and rate of heat transfer coefficients are visualized both in qualitative and quantitative manners in the vicinity of stretching sheet. The results reviled that the temperature and velocity of the fluid rise with increasing values of variable thermal conductivity parameter. Also, the temperature and normal velocity of the fluid in case of Cu-water nanoparticles is more than that of Al2O3- water nanofluid. On the other hand, the axial velocity of the fluid in case of Al2O3- water nanofluid is more than that of TiO2nanoparticles. In addition, the current outcomes are matched with the previously published consequences and initiate to be a good contract as a limiting sense.

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