کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
668184 1458741 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
MHD nanofluid bioconvection due to gyrotactic microorganisms over a convectively heat stretching sheet
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
MHD nanofluid bioconvection due to gyrotactic microorganisms over a convectively heat stretching sheet
چکیده انگلیسی


• Investigate nanofluids containing motile gyrotactic microorganisms.
• Buongiorno model is employed with convective boundary condition.
• The Nusselt numbers decrease with increasing magnetic field.
• The Sherwood numbers decrease with increasing magnetic field.
• The density number decreases with increasing magnetic field.

MHD laminar boundary layer flow with heat and mass transfer of an electrically conducting water-based nanofluid containing gyrotactic microorganisms along a convectively heated stretching sheet is investigated numerically. The governing equations are reduced to non-linear ordinary differential equations using Oberbeck–Boussinesq approximation and similarity transformations. The effects of the governing parameters on the dimensionless quantities like velocity, temperature, nanoparticle concentration, density of motile microorganisms, local Nusselt, and local Sherwood numbers for both nanoparticles and motile microorganism density are explored. It is found that the dimensionless velocity decreases with increasing buoyancy ratio and bioconvection Rayleigh number and the dimensionless temperature at the surface increases with an increase in the convective parameter, whereas it decreases with increasing buoyancy ratios.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Thermal Sciences - Volume 81, July 2014, Pages 118–124
نویسندگان
, ,