TY - JOUR TI - Bioconvection heat transfer of a nanofluid over a stretching sheet with velocity slip and temperature jump AU - Shen Bingyu AU - Zheng Liancun AU - Zhang Chaoli AU - Zhang Xinxin JN - Thermal Science PY - 2017 VL - 21 IS - 6 SP - 2347 EP - 2356 PT - Article AB - This paper presents an investigation for bioconvection heat transfer of a nanofluid containing gyrotactic microorganisms over a stretching sheet, in which the effects of radiation, velocity slip, and temperature jump are taken into account. The non-linear governing equations are reduced into four ordinary differential equations by similarity transformations and solved by homotopy analysis method, which is verified with numerical results in good agree. Results indicate that the density of motile microorganisms and gyrotactic microorganisms increase with bioconvection Rayleigh number, while decrease with increasing in bioconvection Peclet number and bioconvection Lewis number. It is also found that the Nusselt number, Sherwood number, and gyrotactic microorganisms density depend strongly on the buoyancy, nanofluids, and bioconvection parameters.