Research

The team members have achieved a series of achievements, such as establishing differential equations in the vast sea borders of the motherland, collaborating to discover the wonderful use of Green's function, and studying the mechanism of the kernel function, so as to appreciate the infinite scenery of the numerical world, and explore the mystery of the ocean environment through numerical methods!

Basic information

Drawing on practical problems such as ocean wave energy development and marine environment numerical simulation, the team of marine computing mathematics combines numerical calculation theory with practical background to carry out research on smooth particle method, fast multipole boundary element algorithm, and marine environment numerical simulation. In the past five years, the team has been responsible for (participating in research) more than 20 projects of various types, with a total commitment of more than 20 million yuan; In addition, more than 100 academic papers and more than 10 invention patents published in domestic and foreign academic journals are the achievements of the team. This team is committed to combining mathematics with“three seas and one core”background of Harbin Engineering University, aiming to make mathematics serve the national strategy and cultivate compound talents with a solid mathematical theoretical foundation and a high level of technical research. The team currently has 2 professors, 2 researchers, 2 associate professors, 3 lecturers, and 17 master students.

Team leader:

ProfessorZHENG Xiongbo, Ph.D. in fluid mechanics, doctoral supervisor, member of the National Ocean Energy Conversion Technology Standardization Committee, dedicated to the research of fluid numerical calculation and ocean wave energy conversion theory and technology. In recent years, he has took charge of or participated in a number of national and provincial and ministerial scientific research projects, including 1 high-tech ship scientific research project of the Ministry of Industry and Information Technology of the People's Republic of China, 2 sub-projects, 1 national defense basic scientific research project, 1 JKW innovation special zone project, 1 general project of the National Natural Science Foundation of China, 1 horizontal project, 1 key project of the National Natural Science Foundation of China, 1 national marine energy project, and 1 national 863 plan project. In addition, in terms of academic research, he has published more than 20 academic papers, including more than 10 SCI retrieval papers, 2 top journal papers, 8 invention patents, and 1 published book. Professor Zheng Xiongbo's related research results have won many awards, including the first prize of Marine Engineering Science and Technology Award“Technology Invention Award”of China Ocean Engineering Consulting Association, the first prize of Science and Technology Progress Award of China Electric Power Engineering Association, the second prize of Science and Technology Progress Award of China Shipbuilding Engineering Association, and the first prize of Science and Technology Award of Universities in Heilongjiang Province.

Team members:

ZHANG Xiaowei, Professor, Deputy Dean of the College of Mathematical Sciences, is responsible for the teaching management of the College of Mathematical Sciences, and the training coach of the school's mathematical modeling competition. He is mainly engaged in the research work of numerical calculation, applied mathematics, the application of mathematical theory in image and signal processing, and has published more than 30 papers. He is currently the executive director of Heilongjiang Mathematics Association and the director of Heilongjiang Industrial and Applied Mathematics Association.

SONG Zhenya, doctoral supervisor, doctor of physical oceanography. He is currently the director and researcher of the Physical Ocean Laboratory of the First Ocean Institute of the Ministry of Natural Resources, the deputy director of the Key Laboratory of Marine Environmental Science and Numerical Simulation of the Ministry of Natural Resources, the secretary-general of the professional committee of air-sea interaction of the China Oceanic Society, the member of the professional committee of high-performance computing of the China Computer Association, and the executive editor of Ocean Modelling. He has been engaged in ocean and climate numerical simulation, high performance computing and machine learning applications. He also developed two generations of earth system model FIO-ESM containing ocean waves, which improved the physical processes contained in the earth system model and explored the role and mechanism of ocean waves in the climate system. Based on FIO-ESM, a short-term climate prediction system was established to provide scientific and technological support for ENSO consultation, polar expedition and major events. In addition, he has also achieved a series of results in other fields. Six ways of deep integration of numerical simulation and machine learning have been proposed, and the application of machine learning in rapid prediction of ocean and climate and correction of model results has been tried. Not only that, he also carried out research on efficient parallel algorithms based on domestic processors for ocean numerical models and load balancing algorithms for earth system models, and realized large-scale and efficient parallelism of numerical models. He is currently chairing a number of National Natural Science Foundation projects, publishing more than 70 academic papers and being cited more than 1700 times.

QIAO Fangli, a researcher, is a part-time doctoral supervisor in Harbin Engineering University. He is currently the deputy director and second-level researcher of the First Institute of Oceanography, Ministry of Natural Resources, and an expert on the United Nations' Ocean Decade Planning Committee ( EPG ). He originally established the wave-induced mixing theory, and created the world's first substantively coupled global high-resolution wave-tide-circulation coupling model, a new typhoon model considering physical processes such as wave droplets, and the first climate model including ocean waves. More importantly, He has made breakthroughs in core technologies such as large-scale and efficient parallel algorithms for ocean models with over 10 million cores and data assimilation, as well as the development of ocean-coupled operational forecasting systems. In the past three years, he has published more than 30 papers in mainstream academic journals in this research field, and won the first national innovation competition award and a number of provincial and ministerial first prizes. In this direction, he has undertaken a number of national-level scientific research projects such as the National Foundation's Innovation Research Group, and has achieved leapfrog development in the field of cutting-edge technology such as the development and application of marine numerical models.

Research directions : physical ocean, numerical calculation, numerical simulation of marine environment.

YANG Lihong, associate professor, master supervisor. She is currently a member of the Chinese Society of Industrial and Applied Mathematics, a member of the Computational Mathematics Society, and a member of the Educational Mathematics Committee of the Chinese Society of Higher Education. She is responsible for and participates in various fund projects, including one project of the National Natural Science Foundation of China. In addition, more than 20 papers were published in academic journals and important conferences at home and abroad, including 10 SCI retrieval papers.

Research direction : Numerical calculation and optimization.

GUO Cui, associate professor, master supervisor. She was responsible for and completed 1 Tianyuan fund of the National Natural Science Foundation of China, 1 basic research promotion project, and 2 provincial natural science fund projects as the main participant. She has published more than 10 papers in academic journals and important academic conferences at home and abroad, including 3 SCI retrieval papers. In addition, She won the title of outstanding lecturer of the university and participated in one provincial education reform project. She completed a postgraduate teaching reform fund and participated in the recording of video open courses such as“University MOOC-Typical Examples of Linear Algebra,”“Typical Problems of Linear Algebra,”“Numerical Calculation”and“Mathematical Physics Methods.”

ZHOU Shuanghong, lecturer, participated in 2 projects of the National Natural Science Foundation of China and 1 high-tech ship project of the Ministry of Industry and Information Technology of the People's Republic of China. He took charge of and participated in 2 horizontal projects. Additionally, He is responsible for 3 special project funds for colleges and universities, and participated in the compilation of 3 textbooks. He has published 7 papers in academic journals at home and abroad, including 5 SCI / EI retrieval papers.

Research directions : fluid calculation, electromagnetic modeling and electromagnetic calculation, blind source signal separation

LI Xiaole, lecturer, participated in 1 National Natural Science Youth Fund project, 1 Central University Special Fund project, and published 4 SCI papers as the first author or correspondent author.

Research directions : variable limit integral method, discontinuous Galerkin method, high precision conservative numerical scheme, numerical simulation of marine environment

LIU Xinwang, lecturer, doctor of ship and ocean engineering, is engaged in the teaching of mathematical analysis and mathematical competition in universities, the performance optimization design of ship and ocean engineering structures, and the research of ship and ocean computational fluid dynamics. He participated in a number of important projects, including the Ministry of Science and Technology of the People's Republic of China National Key R & D Program 1, the Ministry of Industry and Information Technology High-tech Ship Special Project 1, the Navy Equipment Pre-research Project 3; He independently developed a large fixed wind farm layout rapid optimization software. In addition, he published more than 20 papers in journals and conferences, including 12 SCI / EI retrieval papers. During his doctoral period, he won the ISOPE ( International Society of Marine and Polar Engineers ) outstanding postgraduate academic scholarship, Shanghai Society of Mechanics outstanding mechanics students and other awards and honorary titles.

The main research directions of the team:

1.Research on Mumerical Methods of Fluid Computing

(a) Study on smoothed particle hydrodynamics

Smoothed particle hydrodynamics (SPH) is a meshless particle method in computational fluid dynamics. The team is now committed to applying the SPH algorithm to fluid mechanics problems such as porous media flow, fluid-solid coupling, and fluid collision atomization.

Piston wave making Interaction between wave and floating body

(b) Fast multipole boundary element algorithm

The fast multipole method is an acceleration technique, which divides the computational domain into near-field and far-field parts when solving the boundary integral equation. According to the traditional boundary element method, the near-field part is calculated, and the remote part adopts the fast multipole method, which greatly improves the calculation speed. The team has now widely applied the fast multipole boundary element algorithm to the fields of mechanics, electricity, fluid mechanics, etc., and is mainly devoted to the study of hydrodynamic algorithms coupled with multi-body wave energy devices.

The hydrodynamic coefficients of the oscillating buoy wave energy device are calculated by using the fast multipole boundary element method:

Additional mass Radiation damping

2.Research based on numerical simulation of marine environment

(a) Wave-induced mixing theory

In the marine environment, an important part of wave research is the role of wave and wave breaking in air-sea exchange and upper ocean mixing. The team's part-time doctoral researcher Qiao Fangli originally proposed the wave-induced mixing theory, which improved the problem of insufficient mixing in the upper ocean in the existing mixing parameterization scheme, and improved the simulation of the upper ocean mixing layer by ocean and climate models.

Wave-induced mixing theory equation :

(b) Production of marine forecasting and reanalysis products

Based on the original wave-induced mixing theory, the team independently developed a model-independent ocean total factor assimilation system, broke through the efficient parallel algorithm, and leapt to the forefront of the world in terms of support capability. In 2018, the marine environment prediction system of the 21 st Century Maritime Silk Road was released. After the nuclear leakage incident in Japan, the drift direction of the leaked nuclear matter was accurately predicted and the research results were published within one week. The fluid numerical calculation and marine environment numerical simulation research were fully utilized in practical applications.

Satellite remote sensingArgo data

International Atomic Energy Agency Organization-East longitude 165E cross section observation diagram

Team Research Results:

1. The team undertakes the project:

2. Awards won by the team

Contact us

Interested students are welcome to join the research team!

Doctoral students and visiting scholars are welcome to join us.

The team enrolls 3-5 doctoral students and 5-7 master studentseveryyear.

Undergraduate students who want to join the team to study in advance, please contact the counselor LIU Dongping（Wechat:liudongping234567）.

ZHANG XiaoweiProfessor：zhangxiaowei@hrbeu.edu.cn

QIAO Fangli Reseacher：qiaofl@fio.org.cn

ZHENG QiongboAssociate Professor：zhengxiongbo@hrbeu.edu.cn

YANG LihongAssociate Professor：lihongyang@hrbeu.edu.cn

GUO Cui Associate Professor：2185835@163.com

ZHOU ShuanghongLecturer：zhoushuanghong@hrbeu.edu.cn

LI Xiaole Lecturer：leggwp@163.com

You are welcome to join us in the future with yourpassionfor MarineComputationalMathematical research and your feelings of exploration and knowledge!