A variational theory of lift
C Gonzalez, HE Taha - Journal of Fluid Mechanics, 2022 - cambridge.org
In this paper we revive a special, less-common, variational principle in analytical mechanics
(Hertz'principle of least curvature) to develop a novel variational analogue of Euler's …
(Hertz'principle of least curvature) to develop a novel variational analogue of Euler's …
Kinetic-energy instability of flows with slip boundary conditions
We utilize the notion of kinetic energy instability due to Reynolds and Orr to examine
instability of steady flow past a bluff body subject to slip boundary conditions with friction. We …
instability of steady flow past a bluff body subject to slip boundary conditions with friction. We …
Leveraging code generation for transparent immersogeometric fluid–structure interaction analysis on deforming domains
Code generation technology has been transformative to the field of numerical partial
differential equations (PDEs), allowing domain scientists and engineers to automatically …
differential equations (PDEs), allowing domain scientists and engineers to automatically …
Refining Kutta's flow over a flat plate: Necessary conditions for lift
HE Taha, C Gonzalez - AIAA Journal, 2023 - arc.aiaa.org
In this paper, we present a variational theory of lift that, unlike Kutta's theory, is derived from
first principles in mechanics: Hertz's principle of least curvature. In this theory, the unique …
first principles in mechanics: Hertz's principle of least curvature. In this theory, the unique …
Aero-structural optimization of shape memory alloy-based wing morphing via a class/shape transformation approach
Because of the continuous variability of the ambient environment, all aircraft would benefit
from an in situ optimized wing. This paper proposes a method for preliminary design of …
from an in situ optimized wing. This paper proposes a method for preliminary design of …
An embedded finite element framework for the resolution of strongly coupled fluid–structure interaction problems. Application to volumetric and membrane-like …
This work presents a Fluid–Structure Interaction framework for the robust and efficient
simulation of strongly coupled problems involving arbitrary large displacements and …
simulation of strongly coupled problems involving arbitrary large displacements and …
[HTML][HTML] Variational multiscale modeling with discretely divergence-free subscales
We introduce a residual-based stabilized formulation for incompressible Navier–Stokes flow
that maintains discrete (and, for divergence-conforming methods, strong) mass conservation …
that maintains discrete (and, for divergence-conforming methods, strong) mass conservation …
Elliptic partial differential equations from an elementary viewpoint
S Dipierro, E Valdinoci - arXiv preprint arXiv:2101.07941, 2021 - arxiv.org
These notes are the outcome of some courses taught to undergraduate and graduate
students from the University of Western Australia, the Pontif\'{\i} cia Universidade Cat\'olica …
students from the University of Western Australia, the Pontif\'{\i} cia Universidade Cat\'olica …
Eight (y) mathematical questions on fluids and structures
Turbulence is a long-standing mystery. We survey some of the existing (and sometimes
contradictory) results and suggest eight natural questions whose answers would increase …
contradictory) results and suggest eight natural questions whose answers would increase …
A modified finite element formulation for the imposition of the slip boundary condition over embedded volumeless geometries
This work describes a novel formulation for the simulation of Navier–Stokes problems
including embedded objects. The new proposal is based on the use of a modified finite …
including embedded objects. The new proposal is based on the use of a modified finite …