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An incompressible, MHD, bioconvective flow of Maxwell fluid is studied. The rotating isolated disk caused the fluid motion. The disk also stretches with constant rate along radial direction. Cattaneo–Christov energy and mass species flux models are adopted. Buongiorno model of nanofluid is executed in the constitutive equations along with gyrotactic microorganisms. The transformation of Von-Karman assist to obtained nonlinear system of ordinary differential equations. The final controlled equations are resolved by adopting Runge–Kutta–Fehlberg numerical procedure. Graphical illustrations of results are accounted. It is percieved that velocity field is reduced by velocity ratio parameter. themphoretic, Brownian motion and thermal relaxation time parameters enhanced thermal fields respectively. Motile organisms rate is declined due to bioconvection Peclet number.

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The Riga surface is composed of an electromagnetic actuator that comprises a span‐wise associated array of discontinuous electrodes and an everlasting magnet mounted over a planer surface. The electro‐magneto‐hydrodynamic has an attractive role in thermal reactors, fluidics network flow, liquid chromatography, and micro coolers. Inspired by these applications, a laminar, two‐dimensional nanofluid flow with uniform heat sink‐source, thermophoretic depositions of the particles, and the Newtonian heating effect are investigated. The equations that describe the fluid motion are reduced into a system of ordinary differential equations with the help of spatial similarity variables. Numeric solutions of ordinary differential equations are executed through the Runge–Kutta–Felhberg 45 order technique via a shooting scheme. The role of various nondimensional factors on physically interesting quantities is elaborated graphically. The velocity profile rises for modified Hartmann number and decreases for porosity parameter. Thermal enhancement is high in the common wall temperature condition comparative to the case of the Newtonian heating conditions. The concentration profile is enhanced with Schmidt number, but the reverse trend is observed for the thermophoretic parameter. The rate of mass transfer is increased with Schmidt number.

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