Numerical Investigation and Experimental Verification of the Fluid Cooling Process of Typical Stator–Rotor Machinery with a Plate-Type Heat Exchanger

Xiuqi Chen, Wei Wei*, Hongbin Mu, Xu Liu, Zhuo Wang, Qingdong Yan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

This paper discusses the heat transfer process for a typical stator–rotor machinery-hydrodynamic retarder from the perspective of computational fluid dynamics and experimental means. Fluid cooling is an essential step in the working process of hydrodynamic retarders, and changes in viscosity along with temperature rise will affect the performance of braking. To investigate the heat transfer process of stator–rotor machinery, a novel computational fluid dynamics (CFD) method, combined with a dynamic thermophysical property transfer algorithm, is proposed. A heat-flow coupling numerical method with experimental verification is proposed, in which the density and the viscosity are variable with the temperature in an effectiveness–number of transfer units (P-NTU) method. The results show that the numerical results are in good agreement with the experimental data, with a 0.1–2.5% error. The influence of an asymmetric structure on heat transfer characteristics is discussed. The results show that the optimal braking performance, along with the liquid cooling performance, is achieved under outlets with an inlet passage set as 90 degrees.

Original languageEnglish
Article number887
JournalMachines
Volume10
Issue number10
DOIs
Publication statusPublished - Oct 2022

Keywords

  • heat-flow numerical method
  • plate-type heat exchanger
  • stator–rotor machines
  • structure optimization

Fingerprint

Dive into the research topics of 'Numerical Investigation and Experimental Verification of the Fluid Cooling Process of Typical Stator–Rotor Machinery with a Plate-Type Heat Exchanger'. Together they form a unique fingerprint.

Cite this

Chen, X., Wei, W., Mu, H., Liu, X., Wang, Z., & Yan, Q. (2022). Numerical Investigation and Experimental Verification of the Fluid Cooling Process of Typical Stator–Rotor Machinery with a Plate-Type Heat Exchanger. Machines, 10(10), Article 887. https://doi.org/10.3390/machines10100887