Vorticity transfer in a leading-edge vortex due to controlled spanwise bending
Many natural flyers and swimmers routinely flex their lifting or propulsive surfaces to control
the leading-edge vortex (LEV) that forms on the suction side during maneuvering at a high …
the leading-edge vortex (LEV) that forms on the suction side during maneuvering at a high …
Using adjoint-based optimization to study kinematics and deformation of flapping wings
The study of flapping-wing aerodynamics faces a large control space with different wing
kinematics and deformation. The adjoint-based approach, by solving an inverse problem to …
kinematics and deformation. The adjoint-based approach, by solving an inverse problem to …
[HTML][HTML] Adjoint-based optimization of flapping plates hinged with a trailing-edge flap
It is important to understand the impact of wing-morphing on aerodynamic performance in
the study of flapping-wing flight of birds and insects. We use a flapping plate hinged with a …
the study of flapping-wing flight of birds and insects. We use a flapping plate hinged with a …
Adjoint-based optimization for thrust performance of three-dimensional pitching–rolling plate
An adjoint-based optimization is applied to study the thrust performance of a pitching–rolling
ellipsoidal plate in a uniform stream at Reynolds number 100. To achieve the highest thrust …
ellipsoidal plate in a uniform stream at Reynolds number 100. To achieve the highest thrust …
3D vortical structure of multiple moving spheroids under adjoint-based optimal control
View Video Presentation: https://doi. org/10.2514/6.2023-0458. vid The study of vortical
structures exhibited by formations of moving solid bodies in a three-dimensional domain …
structures exhibited by formations of moving solid bodies in a three-dimensional domain …
Adjoint-Based Optimal Control on Flows with Multiple Moving Cylinders in Tandem
View Video Presentation: https://doi. org/10.2514/6.2023-0457. vid In this work, an adjoint-
based approach is developed and implemented to optimize the hydrodynamic force on …
based approach is developed and implemented to optimize the hydrodynamic force on …
Model order reduction using DMD modes and adjoint DMD modes
W Zhang, M Wei - 8th AIAA Theoretical Fluid Mechanics Conference, 2017 - arc.aiaa.org
Dynamic mode decomposition (DMD) is known for its strength to capture frequency features
of dynamic systems. However, without intrinsic orthogonality, it is not convenient to apply …
of dynamic systems. However, without intrinsic orthogonality, it is not convenient to apply …
Multi-objective adjoint optimization of flow-bench port geometry
The combustion efficiency of direct injection engines is largely dependent upon the mixing of
fuel in air, thereby creating a combustible mixture. Such a process is highly dependent upon …
fuel in air, thereby creating a combustible mixture. Such a process is highly dependent upon …
Implementation of immersed boundary method in WENO scheme to simulate shock-structure interaction
In the present work, a sharp interface immersed boundary method using ghost-cells is
implemented in a traditional 5th-order WENO scheme for shock capturing. To avoid non …
implemented in a traditional 5th-order WENO scheme for shock capturing. To avoid non …
Adjoint-ROM based optimal control of the flow with moving boundaries
View Video Presentation: https://doi. org/10.2514/6.2021-2894. vid The adjoint-based
method has become an efficient tool for flow control problems with a huge control space …
method has become an efficient tool for flow control problems with a huge control space …