Effect of inclination angle on bioconvection in porous square cavity containing gyrotactic microorganisms and nanofluid

Abstract

The current article investigates the effect of inclination angle on thermo-bioconvection within the porous-square shaped cavity filled with gyrotactic type microorganisms and nanofluid. The Darcy law with Boussinesq estimation is used for the momentum equation in porous media. The transformed governing equations are solved by Galerkin’s method of finite elements. The effect of inclination angle in the square cavity is interpreted by varying the angle from [Formula: see text] to [Formula: see text]. The effect of inclination on different quantities, for instance, Rayleigh number, bioconvective Rayleigh number, Peclet number, Brownian motion, heat source/sink, and ratio of buoyancy, is discussed. Further, the mean quantities of Nusselt number [Formula: see text], Sherwood number [Formula: see text], and density number [Formula: see text] are analyzed at vertical walls. A quantitative outcome of the study is that the maximum values of [Formula: see text], [Formula: see text], and [Formula: see text] are found for the angle [Formula: see text] and [Formula: see text].

Thermal radiation impact on heat and mass transfer analysis of nanofluids inside a cavity with gyrotactic microorganisms

“…Biswas et al (2020) studied microorganism isoconcentration fields, temperature lines and stream lines features within a lid-driven enclosure drenched with porous medium and detected that the motile and oxygen microorganism concentration is remarkably higher at the top part of the chamber. Balla et al (2021) premeditated finite element technique to know the temperature lines and flow lines features of Buongiorno’s model nanofluid inside a square cavity bursting with microorganisms of gyrotactic type. Jamuna and Balla (2021) deliberated the influence of heat absorption/generation, thermophoresis and Brownian motion on isotherms, isoconcentrations of microorganisms and flow line fields of Buongiorno’s type nanofluid within a square porous cavity.…”