journal article·2023-10-01Open access

Magnetic fluid flow rate and thermal characteristics of hydraulic turbine spindle magnetic fluid seals

Zhenggui Li, Ziyue Wang, Jie Cheng, Guoqing Zhu, Shengnan Yan, Fang Chen

AIP Advances· Volume 13· Issue 10

Abstract

The flow and temperature properties of the magnetic fluid are the primary elements impacting the seal stability in the main shaft magnetic fluid seal of the turbine. This study investigated the eddy current and heat field of the magnetic fluid at the seal gap using a mix of numerical computation and experiment and came to the following conclusions: Under the pole tooth groove and the permanent magnet, the magnetic fluid creates symmetrical vortices in the clearance of the magnetic fluid seal device. Below the pole tooth, the magnetic fluid velocity is minimal and essentially constant. The pole shoe and spindle next to the air side of the magnetic fluid seal device have the lowest temperature, and the device’s core has the greatest temperature.
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Research context

OpenAlex topics: Tribology and Lubrication Engineering · Characterization and Applications of Magnetic Nanoparticles · Fluid Dynamics and Turbulent Flows

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Fluid and Power Machinery, Ministry of Education (Xihua University) 1 , Chengdu 610039, China

Sichuan Huaneng Jialing River Hydropower Co., Ltd. 2 , Nanchong 637500, China

Funding

National Natural Science Foundation of China · Guang’an Science and Technology Bureau key research and development plan

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