We developed a lattice Boltzmann model to investigate the droplet dynamics in microfluidic devices. In our model, a stress-free boundary condition was proposed to conserve the total mass of flow system and improve the numerical stability for flows with low Reynolds number. The model was extensively validated by the benchmark cases including the Laplace’s law, the static contact angles at solid ...

Owing to its fundamental nature, convection-diffusion flows are researched in a number of engineering, scientific, and aeronautical applications. The right meshing approaches necessary for simulations. Major meshes computational fluid dynamics that used find the solutions discretized governing equations include uniform, piecewise-uniform, graded, hybrid meshes. Unintentionally applying might le...

ResumenLas soluciones de la Ecuación Advección-Dispersión son usadas frecuentemente para describir el transporte solutos a través medios porosos, considerando adsorción en equilibrio, tipo lineal y reversible. Para indicar algunas sugerencias acerca este tema, se hizo una revisión las analíticas disponibles. Hay Problemas con Condiciones Frontera, primer tercer-tipo entrada así como segundo-tip...

In this paper, the flow of hydromagnetic non-Newtonian fluid under couple stresses through a porous channel is investigated using the Eyring– Powell model. The fluid is driven by an axial constant pressure gradient. Approximate solutions of the nonlinear dimensionless equations governing the fluid flow are obtained using a new modification of Adomian decomposition method (ADM). The effects of t...

The present work seeks to investigate the problem of stable laminar micropolar fluid flow through porous walls varying permeability. Furthermore, effect an external magnetic field is investigated. resulting solution extended analyse nonlinear differential equation heat and mass transfer in situation. velocity microrotation at channel’s entrance are assumed be those Poiseuille flow. Using approp...

In this article, a Riga plate is exhibited with an electric magnetization actuator consisting of permanent magnets and electrodes assembled alternatively. This exhibition produces electromagnetic hydrodynamic phenomena over fluid flow. A new study model formed the Sutterby nanofluid flow through plate, which crucial to structure several industrial entering advancements, including thermal nuclea...

Abstract The article explores the three-dimensional stream of silver (Ag), magnesium oxide (MgO), and motile microorganism water-based hybrid nanofluids as independent time through a circular cylinder with sinusoidal radius. goal this research is to optimize rate energy mass transfer having periodic phenomena are simulated system partial differential equations containing momentum, temperature, ...

The present article mainly focuses on the transient thermal dispersal within a moving plate using non-Fourier heat flux model. Furthermore, innovative, sophisticated artificial neural network strategy with Levenberg-Marquardt backpropagated scheme (ANNS-LMBS) is proposed for determining temperature in convective-radiative plate. Using dimensionless terms, energy model exchange simplified into n...

The physical limits of the unconventional flame propagation regimes recently discovered [Veiga-Lopez et al., Phys. Rev. Lett. 124, 174501 (2020)] are analyzed. These appear in combustible gaseous mixtures approaching lean quenching limit hydrogen-air flames narrow gaps. They characterized by a split front into dendritic and bifurcating set cells separated nonburned material. A feature selection...

An axisymmetric dendrite of pure material solidi es downward into an undercooled melt Surface energy and kinetic undercooling are negligible The Ivantsov parabolic dendrite is modi ed by buoyant convection We construct an approximate solution to the growth convection problem in powers of a buoyancy parameter G The solution depends on Prandtl number P and Stefan number S undercooling When P and ...