2025 Trends in Fluid Machinery Research

This paper provides an overview of research trends in fluid machinery by examining studies published in the KSFM Journal of Fluid Machinery (Volume 28, 2025) and papers presented at the 2025 summer and winter conferences. A total of 67 journal articles were published in 2025, marking an increase from the previous year, while 711 papers were presented at conferences, indicating a significant expansion in research activity. The collected studies were systematically classified into nine categories, including Fan & Compressor, Pumps and Hydraulic Turbines, Gas/Steam Turbines, Energy and Environmental Systems, Marine and Ocean Energy, Environmental Plants, CFD, Thermal Management, and Nuclear System s. Each category was examined to identify variations in research output, major technical topics, and newly emerging directions. The results reveal a clear trend toward diversification and advancement of research them es. In particular, rapid growth was observed in gas/steam turbine technologies, thermal management, and environmentally related system s. Across most fields, there is a noticeable shift toward improving efficiency, adopting sustainable energy solutions, and incorporating digital technologies such as artificial intelligence and data-driven analysis. This review offers a structured perspective on recent developments in fluid machinery and is expected to support researchers and engineers in understanding current trends and future directions.