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Unsteady bioconvection Darcy‐Forchheimer nanofluid flow through a horizontal channel with impact of magnetic field and thermal radiation
Unsteady bioconvection Darcy‐Forchhiemer nanofluid flow is considered in the current investigation in the presence of micro‐organisms. The flow is exposed to thermal radiation and a uniform magnetic field in a horizontal channel. The impacts of Brownian motion and thermophoresis are also considered for the flow problem. The unsteady governing equations are modeled and transformed into a nondimensional form by employing a suitable group of similar variables. The solution of the modeled equations is determined by the semianalytical method homotopy analysis method. The features of flow characteristics such as temperature, concentration, velocity, and the motile micro‐organism distributions in response to the variations of the emerging parameters are simulated and examined in detail. Among the many results of the study, it is found that velocity upsurges with rising values of the unsteadiness parameter while declining with growth in the magnetic, inertial, and porosity parameters. Temperature augments with growing estimations of Brownian, unsteadiness, and radiation parameters and declines with enhancing values of Prandtl number. Amassed estimations of the Brownian factor reduce the concentration of nanoparticles while growing values of thermophoresis, unsteadiness parameters, and Schmidt number increase it. Moreover, the motile micro‐organism profile is a reducing function of the bioconvection Lewis numbers, Peclet, and bioconvection concentration difference parameter.
Unsteady bioconvection Darcy‐Forchheimer nanofluid flow through a horizontal channel with impact of magnetic field and thermal radiation
Unsteady bioconvection Darcy‐Forchhiemer nanofluid flow is considered in the current investigation in the presence of micro‐organisms. The flow is exposed to thermal radiation and a uniform magnetic field in a horizontal channel. The impacts of Brownian motion and thermophoresis are also considered for the flow problem. The unsteady governing equations are modeled and transformed into a nondimensional form by employing a suitable group of similar variables. The solution of the modeled equations is determined by the semianalytical method homotopy analysis method. The features of flow characteristics such as temperature, concentration, velocity, and the motile micro‐organism distributions in response to the variations of the emerging parameters are simulated and examined in detail. Among the many results of the study, it is found that velocity upsurges with rising values of the unsteadiness parameter while declining with growth in the magnetic, inertial, and porosity parameters. Temperature augments with growing estimations of Brownian, unsteadiness, and radiation parameters and declines with enhancing values of Prandtl number. Amassed estimations of the Brownian factor reduce the concentration of nanoparticles while growing values of thermophoresis, unsteadiness parameters, and Schmidt number increase it. Moreover, the motile micro‐organism profile is a reducing function of the bioconvection Lewis numbers, Peclet, and bioconvection concentration difference parameter.
Unsteady bioconvection Darcy‐Forchheimer nanofluid flow through a horizontal channel with impact of magnetic field and thermal radiation
Jawad, Muhammad (author) / Saeed, Anwar (author) / Khan, Arshad (author) / Gul, Taza (author) / Zubair, Muhammad (author) / Shah, Syed A. A. (author)
Heat Transfer ; 50 ; 3240-3264
2021-06-01
25 pages
Article (Journal)
Electronic Resource
English