Research Field
The research team addresses the urgent need for high specific power-to-weight ratio and high energy density power systems in major equipment such as light manned/unmanned ships, vehicles, and distributed offshore drilling platforms, and also the demand for high-power electrical energy in long-distance pipelines for natural gas and oil transportation, focusing on improving the efficiency and stability of compression, combustion, expansion, and intake/exhaust processes in the Brayton thermodynamic cycle. The research investigates the transport mechanisms and control methods of interfacial heat flux under conditions of extremely high characteristic parameters, multiple flow modes, strong component coupling, and dynamic evolution. The goal is to develop advanced power systems and innovate in the research and development of autonomous equipment powered by gas turbine engines.
Team Building
The team comprises 38 members, including 5 senior researchers and 12 associate senior researchers; 3 post-doctoral fellows and 36 graduate students.
Project and Major Achievement
In 2024, the laboratory initiated 24 ongoing research projects and secured 7 new projects. These include 1 project from the National Natural Science Foundation of China (NSFC) for Outstanding Research Groups, 1 key project from the Chinese Academy of Sciences (CAS), 2 CAS Pilot Special Projects (Class C), 1 project from the Beijing Natural Science Foundation (B Class) for Young Scientists, 2 enterprise-commissioned projects. In the field of basic research, we focus on the issues of non-steady flow and out-of-phase blade response within the turbine and established a coupling relationship between rotational and static non-steady forces, elucidating the spatiotemporal correlation mechanism of non-steady forces on the blade surface under circumferential distortion conditions. We also focus on predicting and suppressing low-frequency combustion instability in the combustion chamber, conducting research on the measurement and theoretical modeling of the flame description function for hydrogen-blended natural gas, revealing the self-excited oscillation mechanisms and external excitation response characteristics of swirl premixed, bluff body, and porous plate flames. We investigated cooling efficiency and aerodynamic losses in turbine blade high-temperature components under cross-flow, revealing the formation mechanism and evolution process of characteristic vortices within new air film holes. We have developed an entropy viscosity Large-Eddy Simulation method for precise simulation and transition prediction of high-Reynolds-number compressible rotating turbulent boundary layers, proposing a unified criterion for the instability and transition of rotating boundary layers. We have focused on the issue of high-fidelity, low-cost analysis of complex flow fields, initially forming a new paradigm of flow field solution guided by physical mechanisms, adapted to geometric features, and driven by intelligent algorithms. We have developed a high-resolution reconstruction method for flow fields with integrated sensor position optimization.
In terms of the independent design and application promotion of gas turbines, we began the independent research and development of a 3 MW gas turbine for the national compact all-electric propulsion demand at the beginning of 2024. By the end of 2024, the project had completed engineering reviews and preliminary component tests, and is now in the production phase.
Technology Transfer
The industrialization company, Qingdao Zhongke Guosheng Power Technology Co., Ltd., has successfully completed an 8000-hour industrial demonstration of a 30 MW gas turbine for national industrial drive and distributed power generation needs at the Peacock River Gas Station of the Western Pipeline Company of the National Pipeline Group. This project has been included in the National Pipeline Group's directory of scientific and technological achievements for promotion and application. Additionally, the coke oven gas power station in the coking park of Henan Liyuan Group in Anyang City, Henan Province, has been operating for a cumulative 1000 hours and five distributed power generation gas turbine models have been successfully sold.
Patent and Paper
This year, a total of 28 academic papers were published, with 16 of them indexed by SCI and 8 indexed by EI. 18 invention patents were granted.
Representive papers:
■ Yaguang Xie, Qiang Du, Lei Xie, et al., Onset of turbulence in rotorstator cavity flows. Journal of Fluid Mechanics, 2024, 991: A3. doi:10.1017/jfm.2024.536. IF: 3.6
■ Qiang Du, Yaguang Xie, Lei Xie et al., Study on transition to turbulence of rotating-disk boundary layer in a rotor-stator cavity with temperature gradient. Physical Review Fluids, 2024, 9: 053908. IF: 2.5
■ Haoyang Liu, QiangDu, Qingzong Xu, et al., Effect of the key geometry andflow parameters on dischargecoefficient of laidback fan-shaped hole under coolantcrossflow condition. ASME Journal of Turbomachinery, 2024, 146(8):081006. IF: 1.9
Awards
One staff won the 18th China Youth Science and Technology Award, Beijing Science and Technology Award for Outstanding Young Zhongguancun Award; one staff won the Shandong Province Science and Technology Youth Award; one staff won the Beijing Natural Science Foundation of Youth Science Fund (Class A) funding; three staff won the youth talent introduction program funding and other awards.
International Cooperation and Exchange
Laboratory members visited Oxford University and Bath University in the UK to conduct academic visits in the field of turbomachinery research; several staff and students went to the UK to attend the ASME Turbo Expo 2024 conference and gave academic presentations.
Dean: DU Qiang 010-82543026 duqiang@iet.cn
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Laboratory