Topology optimization applied to the design of 2D swirl flow devices

The design of fluid devices, such as flow machines, mixers, separators, and valves, with the aim to improve performance is of high interest. One way to achieve it is by designing them through the topology optimization method. However, there is a specific large class of fluid flow problems called 2D...

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Bibliographic Details
Published in:Structural and multidisciplinary optimization 2018-12, Vol.58 (6), p.2341-2364
Main Authors: Alonso, Diego Hayashi, de Sá, Luís Fernando Nogueira, Saenz, Juan Sergio Romero, Silva, Emílio Carlos Nelli
Format: Article
Language:English
Subjects:
Algorithms
Axisymmetric flow
Computational fluid dynamics
Computational Mathematics and Numerical Analysis
Design optimization
Devices
Energy conservation
Energy dissipation
Engineering
Engineering Design
Finite element method
Fluid flow
Hydrocyclones
Laminar flow
Mathematical models
Mixers
Performance enhancement
Research Paper
Separators
Theoretical and Applied Mechanics
Topology optimization
Turbines
Two dimensional flow
Two dimensional models
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Summary:The design of fluid devices, such as flow machines, mixers, separators, and valves, with the aim to improve performance is of high interest. One way to achieve it is by designing them through the topology optimization method. However, there is a specific large class of fluid flow problems called 2D swirl flow problems which presents an axisymmetric flow with (or without) flow rotation around the axisymmetric axis. Some devices which allow such simplification are hydrocyclones, some pumps and turbines, fluid separators, etc. Once solving a topology optimization problem for this class of problems using a 3D domain results in a quite high computational cost, the development and use of 2D swirl models is of high interest. Thus, the main objective of this work is to propose a topology optimization formulation for 2D swirl flow fluid problem to design these kinds of fluid devices. The objective is to minimize the relative energy dissipation considering the viscous and porous effects. The 2D swirl laminar fluid flow modelling is solved by using the finite element method. A traditional material model is adopted by considering nodal design variables. An interior point optimization (IPOPT) algorithm is applied to solve the optimization problem. Numerical examples are presented to illustrate the application of this model for various 2D swirl flow cases.
ISSN:1615-147X
1615-1488
DOI:10.1007/s00158-018-2078-0