Bibliometric research of hydro turbine blades through CiteSpace analyzing methods: An evaluation between 2015 and 2024

Turbine blades are the core components of a water turbine, which directly affects the conversion efficiency from water energy to mechanical energy. To understand current research hotspots as well as future research directions, this article provides an overview of the progress of research on hydraulic turbines and turbine blades using CiteSpace 6.4, and analyses the future direction of research on hydraulic turbine blades in terms of the research trends of countries, institutions, and authors. From the three institutions with the highest number of papers, Jiangsu University, Tsinghua University, and Xihua University, it can be seen that the hotspot of hydraulic turbine blade research is the calculation of different quantities by numerical simulation. Fatigue, cracking, wear, stress state, and blade corrosion of turbine blades of different shapes in different environments. The research results show that the working mechanism, material properties, and damage research of hydraulic turbine blades are cutting-edge hotspots.