Simulating fluid within elastic pipe

• Published in: Zhejiang da xue xue bao. Journal of Zhejiang University. Sciences edition. Li xue ban Vol. 52; no. 1; pp. 1 - 9
• Main Authors: Yang, Shaojuan, Ma, Long, Yang, Runze, Chen, Shi, Zhou, Yuanfeng
• Format: Journal Article
• Language: Chinese; English
• Published: Hangzhou Zhejiang University 01.01.2025; Zhejiang University Press
• Subjects: Constraints; elastic pipes(弹性管道); Elastic properties; Fluid flow; fluid-solid interaction(流固交互); fluids(流体); Physical simulation; physical simulation(基于物理的模拟); Pipes; position based dynamics (pbd)(基于位置的动力学); Real time
• ISSN: 1008-9497
• DOI: 10.3785/j.issn.1008-9497.2025.01.001

Research on simulating the interaction of fluids in elastic pipes is a significant topic in the field of physical simulation. In this paper, we adopt position based dynamics to achieve high controllability and real-time performance. A hybrid approach is employed, using particles to simulate fluids, allowing for a more flexible representation of continuously flowing fluids while using triangular meshes to model pipes, enabling the establishment of overall elastic constraints. This approach comprehensively considers collisions within the pipe, ensuring the non-penetrative interaction between fluids and pipes, resulting in a realistic and closely coupled simulation. Additionally, elastic constraints are introduced to endow the pipe with specific elastic properties, and GPU parallel computing is utilized to accelerate the simulation. Experimental results indicate that the proposed approach is suitable for simulating particle-based fluids and triangular mesh-based pipes, providing an effective solution for simulating fluid flow within elastic pipes.