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The problem of solving complex engineering problems has always been a major topic in all industrial fields, such as aerospace, civil and mechanical engineering. The use of numerical methods has increased exponentially in the last few years, due to modern computers in the field of structural mechanics. Moreover, a wide range of numerical methods have been presented in the literature for solving such problems. Structural mechanics problems are dealt with using partial differential systems of equations that might be solved by following the two main classes of methods: Domain-decomposition methods or the so-called finite element methods and mesh-free methods where no decomposition is carried out. Both methodologies discretize a partial differential system into a set of algebraic equations that can be easily solved by computer implementation. The aim of the present Special Issue is to present a collection of recent works on these themes and a comparison of the novel advancements of both worlds in structural mechanics applications.

History of engineering & technology --- direction field --- tensor line --- principal stress --- tailored fiber placement --- heat conduction --- finite elements --- space-time --- elastodynamics --- mesh adaptation --- non-circular deep tunnel --- complex variables --- conformal mapping --- elasticity --- numerical simulation --- numerical modeling --- joint static strength --- finite element method --- parametric investigation --- reinforced joint (collar and doubler plate) --- nonlocal elasticity theory --- Galerkin weighted residual FEM --- silicon carbide nanowire --- silver nanowire --- gold nanowire --- biostructure --- rostrum --- paddlefish --- Polyodon spathula --- maximum-flow/minimum-cut --- stress patterns --- finite element modelling --- laminated composite plates --- non-uniform mechanical properties --- panel method --- marine propeller --- noise --- FW-H equations --- experimental test --- continuation methods --- bifurcations --- limit points --- cohesive elements --- functionally graded materials --- porosity distributions --- first-order shear deformation theory --- shear correction factor --- higher-order shear deformation theory --- equivalent single-layer approach --- n/a

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Microfluidics has seen a remarkable growth over recent decades, with its extensive applications in engineering, medicine, biology, chemistry, etc. Many of these real applications of microfluidics involve the handling of complex fluids, such as whole blood, protein solutions, and polymeric solutions, which exhibit non-Newtonian characteristics—specifically viscoelasticity. The elasticity of the non-Newtonian fluids induces intriguing phenomena, such as elastic instability and turbulence, even at extremely low Reynolds numbers. This is the consequence of the nonlinear nature of the rheological constitutive equations. The nonlinear characteristic of non-Newtonian fluids can dramatically change the flow dynamics, and is useful to enhance mixing at the microscale. Electrokinetics in the context of non-Newtonian fluids are also of significant importance, with their potential applications in micromixing enhancement and bio-particles manipulation and separation. In this Special Issue, we welcomed research papers, and review articles related to the applications, fundamentals, design, and the underlying mechanisms of non-Newtonian microfluidics, including discussions, analytical papers, and numerical and/or experimental analyses.

Technology: general issues --- History of engineering & technology --- microfluidics --- Janus droplet --- OpenFOAM --- volume of fluid method --- adaptive dynamic mesh refinement --- shear-thinning fluid --- electroosmosis --- elastic instability --- non-Newtonian fluid --- Oldroyd-B model --- electroosmotic flow --- micromixing performance --- heterogeneous surface potential --- wall obstacle --- power-law fluid --- bvp4c --- RK4 technique --- brownian motion --- porous rotating disk --- maxwell nanofluid --- thermally radiative fluid --- von karman transformation --- hybrid nanofluid --- entropy generation --- induced magnetic field --- convective boundary conditions --- thermal radiations --- stretching disk --- viscoelastic material --- group similarity analysis --- thermal relaxation time --- parametric investigation --- variable magnetic field --- error analysis --- viscoelastic fluid --- microfluid --- direction-dependent --- viscous dissipation --- chemical reaction --- finite element procedure --- hybrid nanoparticles --- heat and mass transfer rates --- joule heating --- tri-hybrid nanoparticles --- Soret and Dufour effect --- boundary layer analysis --- finite element scheme --- heat generation --- constructive and destructive chemical reaction --- particle separation --- viscoelastic flow --- inertial focusing --- spiral channel --- transient two-layer flow --- power-law nanofluid --- heat transfer --- Laplace transform --- nanoparticle volume fraction --- effective thermal conductivity --- fractal scaling --- Monte Carlo --- porous media --- power-law model --- bioheat equation --- human body --- droplet deformation --- viscoelasticity --- wettable surface --- dielectric field --- droplet migration --- wettability gradient --- n/a

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• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Microfluidics has seen a remarkable growth over recent decades, with its extensive applications in engineering, medicine, biology, chemistry, etc. Many of these real applications of microfluidics involve the handling of complex fluids, such as whole blood, protein solutions, and polymeric solutions, which exhibit non-Newtonian characteristics—specifically viscoelasticity. The elasticity of the non-Newtonian fluids induces intriguing phenomena, such as elastic instability and turbulence, even at extremely low Reynolds numbers. This is the consequence of the nonlinear nature of the rheological constitutive equations. The nonlinear characteristic of non-Newtonian fluids can dramatically change the flow dynamics, and is useful to enhance mixing at the microscale. Electrokinetics in the context of non-Newtonian fluids are also of significant importance, with their potential applications in micromixing enhancement and bio-particles manipulation and separation. In this Special Issue, we welcomed research papers, and review articles related to the applications, fundamentals, design, and the underlying mechanisms of non-Newtonian microfluidics, including discussions, analytical papers, and numerical and/or experimental analyses.

microfluidics --- Janus droplet --- OpenFOAM --- volume of fluid method --- adaptive dynamic mesh refinement --- shear-thinning fluid --- electroosmosis --- elastic instability --- non-Newtonian fluid --- Oldroyd-B model --- electroosmotic flow --- micromixing performance --- heterogeneous surface potential --- wall obstacle --- power-law fluid --- bvp4c --- RK4 technique --- brownian motion --- porous rotating disk --- maxwell nanofluid --- thermally radiative fluid --- von karman transformation --- hybrid nanofluid --- entropy generation --- induced magnetic field --- convective boundary conditions --- thermal radiations --- stretching disk --- viscoelastic material --- group similarity analysis --- thermal relaxation time --- parametric investigation --- variable magnetic field --- error analysis --- viscoelastic fluid --- microfluid --- direction-dependent --- viscous dissipation --- chemical reaction --- finite element procedure --- hybrid nanoparticles --- heat and mass transfer rates --- joule heating --- tri-hybrid nanoparticles --- Soret and Dufour effect --- boundary layer analysis --- finite element scheme --- heat generation --- constructive and destructive chemical reaction --- particle separation --- viscoelastic flow --- inertial focusing --- spiral channel --- transient two-layer flow --- power-law nanofluid --- heat transfer --- Laplace transform --- nanoparticle volume fraction --- effective thermal conductivity --- fractal scaling --- Monte Carlo --- porous media --- power-law model --- bioheat equation --- human body --- droplet deformation --- viscoelasticity --- wettable surface --- dielectric field --- droplet migration --- wettability gradient --- n/a