A review of progress in studies and research on the application of the response surface methodology in investigating the thermal conductivity of nanofluids: a bibliometric approach and statistical analysis
摘要
Despite the growing body of research on nanofluids, a systematic bibliometric analysis focusing specifically on the application of response surface methodology (RSM) in predicting their thermal conductivity is notably absent. This study addresses this gap by presenting the first comprehensive bibliometric and statistical review of 321 relevant publications retrieved from Scopus (2013–2024). The novelty of this work lies in its dedicated focus on RSM as a core methodological theme, providing a quantitative and visual mapping of the field’s evolution, key contributors, and research hotspots. Major findings include: (1) a marked surge in annual publications after 2021, underscoring the method’s rising adoption; (2) the identification of India, Iran, and Saudi Arabia as the leading contributing countries, with detailed visualization of international collaboration networks; (3) the determination of core journals, most influential authors, and highly cited articles that have shaped the field; and (4) the extraction of predominant research themes such as optimization, hybrid nanofluids, and sensitivity analysis through keyword analysis. This synthesis offers a foundational reference for researchers, clearly delineates the current research landscape, and identifies emergent trends to guide future studies in the thermal conductivity analysis of nanofluids using RSM.