Segmentation of vessels in biomedical images is important as it can provide insight into analysis of vascular morphology, topology and is required for kinetic analysis of flow velocity and vessel permeability. Intravital microscopy is a powerful tool as it enables in vivo imaging of both vasculature and circulating cells. However, the analysis of vasculature in those images is difficult due to ...

This year marks the 150th anniversary of the first continuous-flow chemistry (CFC) technique, developed by Ernest Solvay, which revolutionized industrial level synthesis. CFC is defined by multi-stage processes in which mixing and reacting of chemicals occur without interruption. A significant challenge of CFC lies in post-reaction purification. Free-flow electrophoresis (FFE) could be integrat...

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In order to study spray combustion, an experimental test rig was developed at ONERA partially characterize the flow conditions inside combustion chamber of a gas turbine. Experimental campaigns using laser-based diagnostics were performed provide database under reacting and non-reacting conditions. The paper first describes Mie scattering image-processing detect droplets in spray, calculate 2D ...

Abstract OpenFOAM is one of the most widely used open-source computational fluid dynamics tools and often employed for chemical engineering applications. However, there no systematic assessment OpenFOAM’s numerical accuracy parallel performance chemically reacting flows. For first time, this work provides a direct comparison between built-in flow solvers as well its extension EBIdnsFoam with fo...

A three-dimensional, steady, laminar shear-layer flow spatially developing under a boundary-layer approximation with mixing, chemical reaction, and imposed normal strain is analyzed. The creates counterflow that stretches the vorticity in spanwise direction. equations are reduced to two-dimensional form for three velocity components. non-reactive reactive cases of governing solved numerically, ...

The statistical behaviors of mean enstrophy and its evolution during head-on interaction premixed flames propagating toward a chemically inert flat wall across the turbulent boundary layer have been analyzed using direct numerical simulations for friction velocity-based Reynolds number [Formula: see text]. dynamics both isothermal adiabatic thermal conditions. contributions vortex-stretching vi...

This paper presents a dynamic-optimization algorithm that can be used to minimize a generalized objective function. It is demonstrated for a chemical-vapor-deposition (CVD) process in a stagnation-flow reactor. The equations describing the chemically reacting flow are written in a transient compressible similarity form. After discretizing the spatial derivatives on a finite-volume mesh, the sys...

The two components of combustion noise, namely the direct noise induced by heat release fluctuations in the flow and the indirect noise caused by acceleration of entropy perturbations through mean flow gradients resulting in acoustic radiation, are examined by considering different types of inhomogeneous wave equations deduced from the balance equations of fluid dynamics. This is accomplished b...