This Research Topic aims to delve into the advancements in the design and application of supersonic ejector systems. It encompasses various design approaches, including constant pressure mixing (CPM), constant area mixing (CAM), constant rate of momentum change (CRMC), and constant rate of kinetic energy change (CRKEC), applied across various fields such as cooling, mixing, compression, and fuel cell systems. The ejector's ability to operate with low-grade waste heat, along with its simplicity and reliability, makes it a promising mechanical device. However, its complexity arises from factors such as irreversibility, performance dependency on design approach, operating conditions, working fluid, and field of application.
Despite the ejector system's relatively low performance, there is scope for improvement through the utilization of a physics-based design approach that addresses challenges such as shockless diffusion, frictional losses, jet expansion and position, mixing losses, and optimization. This Research Topic aims to showcase the latest analytical, numerical, and experimental studies that contribute to overcoming these challenges and enhancing ejector performance through innovative design and optimization across various fields of application. The following tracks cover key aspects of ejector technology, including the design and modeling of ejector systems, optimization of performance parameters, and various fields of application. Contributions in these areas will certainly advance ejector technology.
Track 1: Design and development of ejector systems
• Innovative ejector design approaches to overcome irreversibility • Advancements in conventional ejector design approaches such as CAM and CPM
Track 2: Optimization of ejector performance parameters in fields of application
• Optimization of ejector design parameters in various fields of application • Optimization of ejector operating conditions in various fields of application • Optimization of ejector technology in fuel cell-based systems
Track 3: Analytical, numerical, and experimental studies of ejector systems in fields of application
• Advances in analytical and numerical approaches for ejector performance prediction • Computational fluid dynamics (CFD) simulations for flash boiling flows and real gas applications • Advanced modeling approaches for single and two-phase flows in single and two-stage ejectors • Evaluation of ejector efficiency and performance in different advanced energy conversion systems
Article types and fees
This Research Topic accepts the following article types, unless otherwise specified in the Research Topic description:
Brief Research Report
Editorial
FAIR² Data
Hypothesis and Theory
Methods
Mini Review
Opinion
Original Research
Perspective
Articles that are accepted for publication by our external editors following rigorous peer review incur a publishing fee charged to Authors, institutions, or funders.
Article types
This Research Topic accepts the following article types, unless otherwise specified in the Research Topic description:
Brief Research Report
Editorial
FAIR² Data
Hypothesis and Theory
Methods
Mini Review
Opinion
Original Research
Perspective
Review
Systematic Review
Keywords: Supersonic Ejector, Ejector Technology, Optimization of Performance Parameters
Important note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.
