In the context of the energy transition, biomass represents a pivotal player for a sustainable future. This thesis delves into the multifaceted role of biomass, exploring its potential, its final uses and the challenges it faces in shaping a sustainable energy landscape.

Depuis des siècles, les barrages permettent de gérer les ressources en eau à des fins de production et de protection contre les aléas climatiques. Néanmoins, la construction et le fonctionnement des barrages ont des impacts socio-écologiques non négligeables à l'amont, comme à l'aval des barrages. En particulier, ces ouvrages viennent perturber la continuité sédimentaire des rivières.

Press hardenable steels (PHS) coated with Al-Si alloy are widely used in the automotive industry owing to their good mechanical properties (YS > 1200 MPa and TS > 1500 MPa). The presence of Al-Si coating prevents oxidation and decarburization of steel during austenitization.

Lattices materials range from open and closed cell foams across a wide range of length scale to micro-architectured, multi-phase solids that are manufactured by additive manufacture. Size effects are important too: lattices with struts of small diameter are subjected to high gradients of strain in bending and are consequently have a higher material strength than large scale lattices.

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This study introduces an unsteady panel method designed to solve potential flows around rigid airfoils and self-propelling eel-like bodies exhibiting undulatory swimming motion. The flow model represents the boundary-layer as an infinitesimally thin vortex sheet on the body surface, detaching only at the wedged trailing-edge of the body in the form of point vorticity.

This talk focuses on accelerating the design of microfluidic heat sinks via topology optimization of the conjugate heat transfer problem. The computational bottleneck of this iterative process is the numerical solution of the Navier-Stokes (NS) equations due to their nonlinearity.

The role of chiral amines in the pharmaceutical and agrochemical industries is substantial, as they are present in 40 to 45 % of small pharmaceuticals and 20 % of agrochemicals. Synthesising chiral amines involves traditional chemical methods and novel enzymatic approaches, including the use of transaminase enzymes as catalysts.

This short seminar is focused on the (un)steadiness of the flow, as well as the aerodynamic behaviour, of an impulsively started NACA0010 airfoil at a Reynolds number of Re = 5000, and for 3 moderate angles of attack.

The last decades have shown impressive progress regarding the strength and ductility compromise of steels. Yet, the resulting refined and complex microstructures lead to fracture mechanisms which are not captured by traditional forming and failure indicators.