가상경계-격자 볼츠만 방법을 이용한 유동장내 나노/마이크로 입자에 작용하는 힘의 해석

• Published in: Journal of biomedical engineering research Vol. 43; no. 1; pp. 35 - 44
• Main Authors: 조홍주, 이세영, Jo, Hong Ju, Lee, Sei Young
• Format: Journal Article
• Language: Korean
• Published: 대한의용생체공학회 01.02.2022
• Subjects: 의공학; Recirculation length; Immersed boundary method; Uniform flow over a cylinder; Lattice boltzmann method; Drag coefficient
• ISSN: 1229-0807; 2288-9396

Immersed boundary-Lattice Boltzmann Method (IB-LBM) is used for the analysis of flow over the circular cylinder in the concept of fluid-structure interaction analysis (FSI). Recently, IB-LBM has shown the enormous possibility for the application of various biomedical engineering fields, such as the movement of a human body or the behavior of the blood cells and/or particle-based drug delivery system in blood vessels. In order for the numerical analysis of the interaction between fluid and solid object, immersed boundary method and lattice Boltzmann method are coupled to analyze the flow over a cylinder for low Reynolds laminar flow (Re=10, 20, 40 and 100) with Zhu-He boundary condition at the boundary. With the developed IB-LBM, the flow around the cylinder in the uniform flow is analyzed for the laminar flow and the drag and lift coefficients and recirculation length are compared to the previous results.