• Stefanie Elgeti, TU Wien
• Marek Behr, RWTH Aachen University

The design process in engineering applications is currently experiencing a change in paradigm away from experience-based design to numerical design. In many such engineering applications, flows of complex fluids are encountered; posing the challenge of understanding, describing, computing, and controlling these flows. In this spirit, this mini-symposium aims at providing a forum for questions concerning both numerical and optimization methods specific to fluid flow. On the modelling-side it covers the issues related to complex, non-Newtonian flow phenomena, such as choice of model or appropriate stabilization. Furthermore, in the area of simulation, novel numerical methods, ranging from discretization methods to both free-boundary problems and deforming domain problems, are considered. In all cases, the flow solution may serve as the forward solution of a shape optimization problem, requiring a shape representation and a design objective along with problem-specific optimization schemes.
Topics of this mini-symposium include, but are not limited to:
•Methods particular to specific applications such as primary manufacturing processes, dam breaks, industrial storage tanks, combustion engines, ship design, etc.
•Non-Newtonian fluid models describing shear-thinning or viscoelastic properties, e.g., Carreau-Yasuda, extended Pom-Pom, Phan-Thien-Tanner, Giesekus, etc.
•Simulation methods including stabilization schemes, interface capturing, and interface tracking.
•Reduced-order models, in particular via machine learning algorithms.
•Methods and applications related to shape optimization in fluid flow, e.g., geometry representation, boundary conditions on the shape, or choice of objective function.