TOP-1

The research group will recruit several PHD and master students and 2 postdocs.

There are three requirements for doctoral and master students  enrollment: (1) Applicants should have an engineering background and have a strong interest in information technology. Applicants should have obtained a relevant bachelor's or master's degree; (2) Strong technical background, including but not limited to research experiences in BIM/GIS, Internet, digital twin, artificial intelligence, etc. Candidates with research or practical experiences in algorithms, and the development of large-scale software systems or Web/App will be preferred; (3) Highly self-motivated, good written and oral English communication skills, and independent working ability.

Postdoctoral recruitments should also meet the following two points: (1) The applicant should be under the age of 35 and have obtained a doctoral degree no more 3 years; (2) The research directions are civil engineering information technology, Marine environmental information modeling and application, data-driven knowledge discovery and application, etc. (Note: postdoctoral candidates are required to present a half-hour academic presentation, including the main research works during PHD period and future postdoctoral work plans).

If you are interested, please send your resume, transcripts and work plan to the email: hu.zhenzhong@sz.tsinghua.edu.cn. For details, please see: PHD Master Recruitment and Postdoctoral Recruitment.

TOP-2

26 November 2021, Discharge of treated Fukushima nuclear accident contaminated water: macroscopic and microscopic simulations has been published on National Science Review, which is a full affirmation of the students and teachers of the subject group who are generous and rigorous in their learning! NSR officer micro-push high-quality and efficient, reflecting China's outstanding leading journals of the super-class level! Thanks to the director of singhua University's Institute for Ocean Engineering (IOE), Zhang Jianmin's guidance and support, thanks to the editorial department and reviewers for their high evaluation!

The results of this study are of great significance for the prediction of long-term spread of pollutants, the rational response of nuclear wastewater discharge plans and the monitoring of subsequent radioactive material concentrations. In the future, we will continue to deepen our research, Further explore the long-term impact of the discharge of nuclear waste water on the whole ocean and mankind, and provide important decision support for the country and the world to deal with the nuclear wastewater crisis!

Note: National Science Review , whose impact factor in 2021 is 17.275, is the top journal in the multi-discipline domain. For more information, please see the introduction video.

2025-06-11

The citation count of "Web-oriented BIM 3D Viewing and Information Management" on China National Knowledge Infrastructure (CNKI) has reached 100 times.

BIM Server provides a solution for BIM to support construction life cycle. Currently , the structure of BIM Server is C/S, but gradually B/S also shows its advantages. The release of the HTML5 standard brings the WebCL technology which supports hardware graphics acceleration in browser and is one of a series of revolutionary Web technologies. Thereby the foundation is laidfor achieving Web-oriented BIM infomation management and 3D display of BIM model. In this paper, the model information scope and its expression of Web-oriented BIM is ana-lyzed, and the corresponding information management technology and the BIM model display based on the Three. js, which is a WebCL framework, are studied. Then, a WebCL-based platform for 3D display and information management of BIM is also developed. Application shows that the graphics platform of the platform performs stable with nice rendering for large BIM. Meanwhile the platform provides rich feature supports for Web client by favorable interactive functions, showing a great application value.

Journal of Information Technology in Civil Engineering and Architecture was founded in 2009. It is a national first-class journal sponsored by the China Graphics Society and under the supervision of the China Association for Science and Technology. Wang Hengwei is the first author of the paper. The other authors include Associate Researcher Lin Jiarui and Professor Zhang Jianping from the Department of Civil Engineering at Tsinghua University.

2025-05-24

The paper "Fluid flow and heat transfer characteristics of manifold microchannel heat sinks with ribs of different shapes" has been published in the Journal International Journal of Heat and Mass Transfer.

Manifold Microchannel Heat Sink (MCHS) is an effective device to dissipate the heat generated from the chips with large-scale circuits. Although it is found that adding ribs to the microchannels of the traditional MCHS improves its performance in heat dissipation, there is no systematic study to investigate the effect of adding ribs to the manifold MCHS. The pressure drops, mean temperatures, the Nusselt number, the heat enhancement efficiency, the characteristics of flows and heat transfers have been studied numerically in the manifold MCHS with five different shaped ribs and compared to the smooth manifold MCHS in this paper. The comparison shows that the development of boundary layers in the flow and temperature fields is interrupted by the ribs, which leads to an enhancement in heat dissipation. Compared to the smooth manifold MCHS, the ribs reduce the temperature of the substrate bottom by 9.2%-25.1% and the Nusselt numbers are increased by 11.5%-45.2%. However, the ribs in the microchannels increase the pressure drops by 55.7%-111.4%. As the Reynolds number increases, the influence of ribs on these key indicators becomes more pronounced. Through the computational analysis of the thermal enhancement efficiency, it is found that benefits of adding ribs overwhelms at higher Reynolds number (exceeds 200). The elliptical ribs are recommended among the different rib shapes under investigation and the heat enhancement efficiency achieves a maximum value of 1.17 when the Reynolds number is 450.

Note: The International Journal of Heat and Mass Transfer belongs to the Q1 zone of engineering and technology journals, with an impact factor of 5.0. The first author of the paper is Chen Shoujun from the Institute for Ocean Engineering. Teacher Li Sunwei is the corresponding author. The research results were supported by the Guangdong Basic and Applied Basic Research Foundation.  The authors acknowledge the support from the Tsinghua Shenzhen International Graduate School - Shenzhen Pengrui Young Faculty Program of Shenzhen Pengrui Foundation.

2025-04-17

The paper Vision-based adaptive cross-domain online product recommendation for 3D design models has been published in the journal Computer-Aided Civil and In Infrastructure Engineering.

Three-dimensional (3D) digital design is extensively adopted in the architecture, engineering, consulting, operations, and maintenance (AECOM) industry to enhance collaboration among stakeholders. Although recommendation systems are commonly employed to facilitate purchasing in e-commerce websites, none involves recommending online products to users from 3D building design models due to dimensional and stylistic discrepancies. This study proposes a visionbased adaptive cross-domain online product recommendation method, VacRed, for 3D building design models. First, a cross-domain approach is proposed to transform design models into e-commerce images, addressing discrepancies in dimension and style between them. Second, an adaptive mechanism is introduced to solve the issue of image quality instability caused by variations in generator weights during the training process of generative models. Third, a cross-domain product recommendation system is developed based on deep learning to recommend the top k relevant online products for a given building design product. Finally, experiments were conducted to ascertain the effectiveness of the VacRed method. The experimental results of this method demonstrate its excellent performance, achieving a precision rate (PR) of 87.20% and a mean average precision of 83.65%. This study effectively connects two main stages in the AECOM industry, design and purchasing, and two large communities, design and e-commerce.

Note: Computer-Aided Civil and Infrastructure Engineering belongs to the Q1 zone of engineering and technology journals, with an impact factor of 8.5. The first author of the paper is Zhou Xiaoping from Beijing University of Civil Engineering and Architecture. The research results were supported by the National Natural Science Foundation of China.