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This study examines the generation of irreversibility and the behavior of stagnation point hybrid nanofluid flow on a Riga plate. The effects of nonlinear thermally convective and solar radiation are incorporated in the modeled equations. The nanoparticles of (Cu) and (Al2O3) are mixed with Glycol (C3H8O2) to hybridized it. The leading equations have been changed to dimension-free form by using the set of appropriate variables and then have been evaluated by Artificial Neural Network (ANN) approach. It is revealed in this work that, the velocity panels are amplified with expansion in Grashof number and electromagnetic factor while declined with escalation in magnet/electrode factor and nanoparticles concentration. Upsurge, in Eckert number for both the scenarios (Ec < 0) and (Ec > 0), the radiation factor and nanoparticles concentration cause augmentation in thermal characteristics. Radiation factor has positive impacts on Bejan number and generation of Entropy. Moreover, Bejan number is retarded while entropy is augmented with growth in Brinkman number. It is also established in this work that the principle of entropy generation for hybrid nanoparticles supports the efficient delivery of drug in cancer treatment. [ABSTRACT FROM AUTHOR]

Magnetohydrodynamic free convection liquid considering Hall along with ion-slip current has many engineering usages. In addition, boundary layer flow of power-law fluids due to a stretching plane possesses sundry applications in biological sciences, geophysics, and petroleum industries. Further, hybrid nanofluids are important due to their high heat transfer capability. In view of such relevance, the goal of this investigation is to analyze Hall along with ion-slip effects on thermo-fluidic flow of magnetic power-law hybrid nanofluid so as to accomplish effective cooling in the desired thermal systems. Present investigation's novelty is adding hybrid nanostructure to power-law fluid flow influenced by Hall and ion-slip mechanism and implementation of modified Fourier's law featured with velocity and temperature gradients. The key results are that fluid velocity amplifies with rise in ion-slip and Hall parameters. Modified Prandtl numbers and Hall parameter ameliorate heat transfer rate while ion-slip parameter diminishes it. [ABSTRACT FROM AUTHOR]

Rock masses slopes stability is a real problem and represents an important concern in Aseer Province, in order to avoid rock fall process on the main roads. For this reason, it is necessary to explore, inspect, investigate, and understand the natural stresses within these rock masses taking into a consideration the third dimension. In this sense, the state of stresses within the rock masses depends on the characteristics of Commonwealth Scientific and Industrial Research Organization (CSIRO) cell and the dimension of the overcoring hole. Furthermore, in order to achieve the 3D modeling, the characteristics of the rock masses mentioned before are introduced in the model using “Surfrac” program written in Pascal and FORTRAN, coupled with “Abaqus” software to simulate the stresses matrix in the model. As a result, the main findings of this research are summarized in three points: the first is dealing with the CSIRO cell itself, where the direction of the gauge is important during the measurement of stresses; in fact, the perpendicular gauges work better than those parallel to the hole axis. The second is evident from the model that the direction of hole must be perpendicular to the dip direction of the rock layers, allowing giving better results compared to others. The third is the selection of the measurement site requiring involving the regional stresses of the study area according to geological investigation. Finally, it is interesting to carry out geophysical exploration in the site to understand the local tectonic movement of rock masses. Moreover, a detailed map can highlight the main fractures and faults network and overlap them with the most important projects deployed in Aseer province for maintenance and monitoring. [ABSTRACT FROM AUTHOR]

The hybrid nanofluid is extensively used in manufacturing commercial applications due to its high exceptional capacity to increase the heat transfer rate. As a result, in the existence of nonlinear convection, the hybrid nanofluid is considered to flow on an inclined plane. The nonlinear convection has many applications in real life and is more relevant to the natural flow avoiding the flow restrictions. The focus has been executed on the thermal and mass Grashof numbers to analyse the fluid motion in the presence of these parameters for nonlinear nature. Moreover, the hybrid nanofluid flow analysis has been done to investigate the heat transfer analysis. The modelled equations are solved through an analytical approach. The heat and mass transfer rates and drag force are calculated under the influence of various physical parameters. The new parameter of the Grashof numbers improves the fluid motion for its larger values, and consequently, the fluid rapidly falls down from the inclined plane. The obtained outputs show that hybrid nanofluids are more effective in heat transfer analysis as compared to other conventional fluids. [ABSTRACT FROM AUTHOR]

The current paper describes a Darcy-Forchheimer flow of Casson hybrid nanofluid through an incessantly expanding curved surface. Darcy-Forchheimer influence expresses the viscous fluid flow in the porous medium. Carbon nanotubes (CNTs) with a cylindrical form and iron-oxide are utilized to make hybrid nanofluids. Using Karman's scaling, the principal equations are rearranged to nondimensional ordinary differential equations. The "Homotopy analysis method" is used to further build up the analytic arrangement of modeled equations. The impact of flow variables on the velocity and temperature profiles has been tabulated and explained. The flow velocity is raised when both the curvature and volume fraction parameters are elevated. The temperature and velocity profiles exhibit the opposite tendency when the Forchheimer number is increased, since the fluid velocity decreases while the energy profile grows. The addition of CNTs and iron nanocomposites improves the thermophysical characteristics of the base fluid significantly. The obtained consequences show that hybrid nanofluids are more efficient to improve the heat transfer rate. Using CNTs and nanomaterials in the base fluid to control the coolant level in industrial equipment is a wonderful idea. [ABSTRACT FROM AUTHOR]