Work

Optimization of sub-grid scale model for abrasive flow machining curved tube based on large eddy simulation

Year: 2019

Type: article

Abstract: Abrasive flow machining technology is a new type of precision machining technology. Due to its unique rheological properties, it can process any complex structure and size parts to meet the requirements that conventional machining cannot meet. Combined with the turbulent flow characteristics of the abrasive flow, the large eddy simulation numerical method is used to simulate the machining process of the abrasive flow. The influence of different sub-grid scale models on the simulation results is discussed. Taking curved tube as the research object, the static pressure, dynamic pressure and velocity of different sub-grid models are analyzed to find the best sub-grid scale model. Large eddy simulation method is used to simulate the complex flow channel parts, and the best sub-grid scale model suitable for complex flow channels is determined, which reveals the grinding and polishing rule of abrasive flow and provides academic support for future research. Therefore, it has frontier and important research value.

Source: Vibroengineering PROCEDIA

DOI: 10.21595/vp.2019.20843

Authors: Guosong Liu, Zhibao Zhu, Junye Li, Ningning Su, Xinming Zhang, Wenduan Yan

Institutions: Changchun University of Science and Technology, Minnan University of Science and Technology

Language: English

Topic: Advanced Surface Polishing Techniques

Subfield: Industrial and Manufacturing Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

Funders: National Natural Science Foundation of China, People's Government of Jilin Province, Education Department of Jilin Province

Awards: G2351924940, G2713836270, G679261174, G6793333985, G774182768