A5100396019- Turbomachinery Performance and Optimization
- Computational Fluid Dynamics and Aerodynamics
- Refrigeration and Air Conditioning Technologies
- Fluid Dynamics and Turbulent Flows
- Heat Transfer Mechanisms
- Tribology and Lubrication Engineering
- Water Systems and Optimization
- Computational Drug Discovery Methods
- Combustion and flame dynamics
- Advanced Numerical Methods in Computational Mathematics
- Food Drying and Modeling
- Coal Properties and Utilization
- Gas Dynamics and Kinetic Theory
- Spacecraft and Cryogenic Technologies
- Differential Equations and Numerical Methods
- Structural Integrity and Reliability Analysis
- Advanced Algorithms and Applications
- Advanced Combustion Engine Technologies
- Numerical methods for differential equations
- Cavitation Phenomena in Pumps
- Graph theory and applications
- Geoscience and Mining Technology
- Fluid Dynamics and Vibration Analysis
- Numerical methods in engineering
- Integrated Energy Systems Optimization
Beijing Institute of Petrochemical Technology
2017-2024
Inner Mongolia University of Science and Technology
2017-2023
North China Electric Power University
2022-2023
Design Science (United Kingdom)
2017-2023
Institute of Engineering Thermophysics
2023
Chinese Academy of Sciences
2023
Xinjiang University
2020-2021
Xi'an Institute of Optics and Precision Mechanics
2017
China University of Petroleum, Beijing
2012-2015
Jilin University
2014
Astrophysical relativistic flow problems require high resolution three-dimensional numerical simulations. In this paper, we describe a new parallel code for simulations of special hydrodynamics (SRHD) using both spatially and temporally structured adaptive mesh refinement (AMR). We used the method lines to discretize SRHD equations total variation diminishing (TVD) Runge-Kutta scheme time integration. For spatial reconstruction, have implemented piecewise linear (PLM), parabolic (PPM), third...
Blending hydrogen into the natural gas pipeline is considered as a feasible way for large-scale and long-distance delivery of hydrogen. However, blended can exert major impacts on Joule–Thomson (J–T) coefficient gas, which significant parameter liquefaction formation hydrate in engineering. In this study, J–T at different blending ratios numerically investigated. First, theoretical formulas calculating gas–hydrogen mixture using Soave–Redlich–Kwong (SRK) equation state (EOS), Peng–Robinson...
Abstract A deep understanding of loss mechanisms inside a turbomachine is crucial for the design and analysis work. By quantifying various losses generated from different flow mechanisms, targeted optimization can be carried out on blading design. In this paper, an evaluation method computational fluid dynamics (CFD) simulations has been developed to quantify generation based entropy production in field. breakdown caused by (such as skin friction, secondary flow, tip clearance vortex, shock...
The geometry of the shroud cavity, which accommodates rotor leakage flow, is very important due to its impact on flow path as well interaction between and mainstream. research in this paper numerically investigates potential for reducing loss by optimization casing. spatial audit breakdown based mechanisms undertaken first part study are foundation develop promising strategies minimizing loss. profiled casing exit cavity effectively deflects jet into axial direction when it re-enters mixing...
The implicit finite difference method is one of the most widely applied methods for transient natural gas simulation. However, this associated with high computational cost. To improve simulation efficiency method, an adaptive strategy introduced into process. proposed consists time step and spatial grid strategy. And these two parts are implemented based on local error technique multilevel respectively. results illustrate that can automatically independently adjust system according to flow...
A linearized Crank-Nicolson difference scheme is constructed to solve a type of variable coefficient delay partial differential equations. The proved be unconditionally stable and convergent, where the convergence order two in both space time. numerical test provided illustrate theoretical results.
The simulation of a natural gas pipeline network allows us to predict the behavior system under different conditions. Such predictions can be effectively used guide decisions regarding design and operation real system. is generally associated with high computational cost since becoming more complex, as well large-scale. In our previous study, Decoupled Implicit Method for Efficient Network Simulation (DIMENS) method was proposed based on ‘Divide-and-Conquer Approach’ ideal, its speed...
To determine the effect of water contents on oxidation spontaneous combustion coal gangue, properties and characteristics gangue were studied using industrial elemental analyses Thermo Gravimetry-Differential Scanning Calorimetry (TG-DSC). The molecular dynamics simulation (MDS) giant regular Monte Carlo (GCMC)were used to investigate adsorption isotherms oxygen (kaolinite) under different molecules (400, 500, 600, 700). results thermogravimetric showed that with increasing moisture content,...
Centrifugal compressors are one of the most commonly used equipments powering long distance natural gas pipeline. In this paper, a similarity conversion method centrifugal based on predictor-corrector was proposed. other words, we to predict key parameter and as correction. Compared with field test data, found error predicted outlet pressure compressor controlled at about 2% temperature fluctuated within 2°C, which could satisfy engineering application requirements.
Engine downsizing is a modern solution for the reduction of CO2 emissions from internal combustion engines. This technology has been gaining increasing attention industry. In order to enable downsized engine operate properly at low speed conditions, it essential have compressor stage with very good surge margin. The ported shroud, also known as casing treatment, conventional way used in turbochargers widen working range. However, shroud works effectively only pressure ratios higher than 3:1....