Guest Editors
Prof. Jiang Bian
Email: bj@yangtzeu.edu.cn
Affiliation: School of Petroleum Engineering, Yangtze University, Wuhan 430100, China
Homepage:
Research Interests: multiphase flow theory and applications, marine oil and gas pipeline transportation technology, hydrogen energy storage and transportation

Prof. Xuewen Cao
Email: caoxw@upc.edu.cn
Affiliation: College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao, 266580, China
Homepage:
Research Interests: theory and application of multiphase flow of oil, gas and water, transportation technology and construction technology of offshore oil and gas pipeline, integrity management of offshore oil and gas pipeline, natural gas treatment and processing

Prof. Dan Guo
Email: guodan@sdipct.edu.cn
Affiliation: College of Petroleum Engineering, Shandong Institute of Petroleum and Chemical Technology, Dongying 257061, China
Homepage:
Research Interests: natural gas treatment and liquefaction, carbon dioxide capture and transportation

Summary
Multiphase flow plays a vital role across a broad spectrum of industries, where it significantly contributes to enhancing production efficiency and ensuring operational safety. Its study spans a variety of technical disciplines and encompasses a wide range of spatial and temporal scales, reflecting the complexity and importance of the phenomena involved.
This special issue welcomes contributions addressing both fundamental and applied aspects of multiphase flow, with particular emphasis on pipeline transport systems. Relevant areas include—but are not limited to—applications in petroleum engineering, the chemical process industry, renewable and emerging energy sectors, cross-phase flow phenomena, as well as hydrogen and multi-energy integration systems.
We particularly encourage submissions in the following thematic areas:
Fundamental Research, Industrial Applications, and Computational Developments: Recent progress in computational fluid dynamics (CFD) for multiphase flows is of key interest. Topics include turbulence in multiphase systems, two-phase flows involving rigid and deformable particles, non-Newtonian flows containing dispersed phases, reactive multiphase systems, and CFD frameworks enhanced by artificial intelligence and machine learning methods.
Innovations in Multiphase Flow Measurement Techniques: We seek original research on cutting-edge measurement technologies, especially those integrating artificial intelligence for enhanced data acquisition and interpretation. This encompasses new measurement principles, advanced imaging methods, high-fidelity data processing strategies, and data-driven modeling approaches tailored for complex multiphase environments.
Multiphase Flow in Carbon Neutrality and Advanced Energy Systems: Contributions are invited that address challenges and solutions in multiphase transport associated with energy transition technologies. This includes the study of flow assurance and transport efficiency for substances such as CO₂ mixtures (including impurity effects), hydrate slurries, hydrogen, ammonia, methanol, and other carbon-neutral or carbon-reducing media.
This special issue aims to foster interdisciplinary dialogue and collaboration, pushing the boundaries of current knowledge and driving innovations that support sustainable, safe, and efficient multiphase flow management in modern engineering systems.
Keywords
multiphase flow, computational fluid dynamics, reactive multiphase flow, heat and mass transfer, flow assurance, artificial intelligence, oil and gas transportation, new energy transportation, CO2 transportation