Topology Optimization for Fluid Flows with Body Forces

2017 ◽  
pp. 67-121
Author(s):  
Yongbo Deng ◽  
Yihui Wu ◽  
Zhenyu Liu
Keyword(s):  
Topology Optimization ◽  
Fluid Flows ◽  
Body Forces

Improvement of a topological level-set approach to find optimal topology by considering body forces

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Meisam Takalloozadeh ◽  
Gil Ho Yoon
Keyword(s):  
Topology Optimization ◽  
Level Set ◽  
Thermal Loading ◽  
Topological Derivative ◽  
Optimization Process ◽  
Optimal Topology ◽  
Content Type ◽  
Body Forces ◽  
Applied Forces ◽  
Level Set Approach

Purpose Body forces are always applied to structures in the form of the weight of materials. In some cases, they can be neglected in comparison with other applied forces. Nevertheless, there is a wide range of structures in civil and mechanical engineering in which weight or other types of body forces are the main portions of the applied loads. The optimal topology of these structures is investigated in this study. Design/methodology/approach Topology optimization plays an increasingly important role in structural design. In this study, the topological derivative under body forces is used in a level-set-based topology optimization method. Instability during the optimization process is addressed, and a heuristic solution is proposed to overcome the challenge. Moreover, body forces in combination with thermal loading are investigated in this study. Findings Body forces are design-dependent loads that usually add complexity to the optimization process. Some problems have already been addressed in density-based topology optimization methods. In the present study, the body forces in a topological level-set approach are investigated. This paper finds that the used topological derivative is a flat field that causes some instabilities in the optimization process. The main novelty of this study is a technique used to overcome this challenge by using a weighted combination. Originality/value There is a lack of studies on level-set approaches that account for design-dependent body forces and the proposed method helps to understand the challenges posed in such methods. A powerful level-set-based approach is used for this purpose. Several examples are provided to illustrate the efficiency of this method. Moreover, the results show the effect of body forces and thermal loading on the optimal layout of the structures.

Guide-Weight method for topology optimization of continuum structures including body forces

2013 ◽  
Vol 75 ◽  
pp. 38-49 ◽  
Author(s):  
Huayang Xu ◽  
Liwen Guan ◽  
Xiang Chen ◽  
Liping Wang
Keyword(s):  
Topology Optimization ◽  
Continuum Structures ◽  
Body Forces ◽  
Weight Method

scholarly journals Topology optimization considering body forces

2009 ◽  
Vol 3 (1) ◽  
pp. 316-320 ◽  
Author(s):  
Bin Zheng ◽  
Ching-jui Chang ◽  
Hae Chang Gea
Keyword(s):  
Topology Optimization ◽  
Body Forces

scholarly journals Local-in-time adjoint-based topology optimization of unsteady fluid flows using the lattice Boltzmann method

2017 ◽  
Vol 4 (3) ◽  
pp. 17-00120-17-00120 ◽  
Author(s):  
Cong CHEN ◽  
Kentaro YAJI ◽  
Takayuki YAMADA ◽  
Kazuhiro IZUI ◽  
Shinji NISHIWAKI
Keyword(s):  
Topology Optimization ◽  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Fluid Flows ◽  
Unsteady Fluid ◽  
Boltzmann Method

scholarly journals Topology optimization of thermal fluid flows with an adjoint Lattice Boltzmann Method

2018 ◽  
Vol 365 ◽  
pp. 376-404 ◽  
Author(s):  
Florian Dugast ◽  
Yann Favennec ◽  
Christophe Josset ◽  
Yilin Fan ◽  
Lingai Luo
Keyword(s):  
Topology Optimization ◽  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Fluid Flows ◽  
Boltzmann Method

scholarly journals Topology optimization for fluid flows using the MPS method incorporating the level set method

2019 ◽  
Vol 188 ◽  
pp. 86-101 ◽  
Author(s):  
Y. Sasaki ◽  
Y. Sato ◽  
T. Yamada ◽  
K. Izui ◽  
S. Nishiwaki
Keyword(s):  
Topology Optimization ◽  
Level Set Method ◽  
Level Set ◽  
Fluid Flows ◽  
Mps Method

scholarly journals Topology optimization considering body forces

2009 ◽  
Vol 3 (1) ◽  
pp. 316-320 ◽  
Author(s):  
Bin Zheng ◽  
Ching-jui Chang ◽  
Hae Chang Gea
Keyword(s):  
Topology Optimization ◽  
Body Forces
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