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

Author(s)

Alonso, Diego Hayashi ^[1] ; Nogueira de Sa, Luis Fernando ^[1] ; Romero Saenz, Juan Sergio ^[2] ; Nelli Silva, Emilio Carlos ^[1]

Affiliation

^[1] Univ Sao Paulo, Polytech Sch, Dept Mechatron & Mech Syst Engn, Sao Paulo, SP - Brazil

^[2] Univ Fed Espirito Santo, Dept Mech Engn, Espirito Santo, ES - Brazil

• Document type: Journal article
• Source: STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION; v. 58, n. 6, p. 2341-2364, DEC 2018.
• Web of Science Citations: 1

Abstract

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. (AU)

• FAPESP's process: 13/24434-0 - Electromagnetic propeller systems for implantable artificial heart and mechanical circulatory support devices
• Grantee: José Roberto Cardoso
• Support Opportunities: Research Projects - Thematic Grants
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• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• FAPESP's process: 14/50279-4 - Brasil Research Centre for Gas Innovation
• Grantee: Julio Romano Meneghini
• Support Opportunities: Research Grants - Research Centers in Engineering Program
• FAPESP's process: 16/19261-7 - Topology Optimization Method Applied to Ventricular Assist Device Rotor and Volute design
• Grantee: Luís Fernando Nogueira de Sá
• Support Opportunities: Scholarships in Brazil - Doctorate