A5101431194- Heat Transfer and Optimization
- Heat Transfer Mechanisms
- Nanofluid Flow and Heat Transfer
- Fluid Dynamics and Turbulent Flows
- Hydraulic and Pneumatic Systems
- Heat Transfer and Boiling Studies
- Lattice Boltzmann Simulation Studies
- Ultrasonics and Acoustic Wave Propagation
- Geotechnical Engineering and Underground Structures
- Advanced Thermodynamic Systems and Engines
- Advanced Sensor and Control Systems
- Oil and Gas Production Techniques
- Non-Destructive Testing Techniques
- Aerosol Filtration and Electrostatic Precipitation
- Particle Dynamics in Fluid Flows
- Thermography and Photoacoustic Techniques
- Refrigeration and Air Conditioning Technologies
- Advanced Measurement and Metrology Techniques
- Structural Integrity and Reliability Analysis
- Drilling and Well Engineering
- Engineering Diagnostics and Reliability
- Risk and Safety Analysis
- Methane Hydrates and Related Phenomena
- Climate change and permafrost
- Industrial Technology and Control Systems
Southwest Petroleum University
2016-2025
Lanzhou University of Technology
2023-2024
Hefei University of Technology
2023
Jilin University
2023
Shenzhen Polytechnic
2021
Beihang University
2019
Shanghai Research Institute of Materials
2019
Nanjing Institute of Technology
2019
Shanghai University of Electric Power
2019
Zhejiang University
2017
The heat transfer and flow characteristics have been numerically investigated in the cross-combined dimple tube with k-ε model, enhancement model based on composite-shape surface technologies is established for first time. results indicate that index, friction factor performance evaluation criteria increase tremendously by comparing single ellipsoidal at considered operating conditions. In particular, rises 18.8–48.3%, an average of 24.8%, when compared traditional tube. 3D simulation...
Solar-powered aircraft have attracted great attention owing to their potential for long-endurance flight and wide application prospects. Due the particularity of energy system, strategy optimization is a significant way enhance performance solar-powered aircraft. In this study, model high-altitude was proposed. This consists three-dimensional kinematic model, aerodynamic collection store loss model. To solve nonlinear optimal control problem with process constraints terminal constraints,...
In this paper, the numerical simulation model of an ellipsoidal protruded tube has been established considering thermal hydraulic performance. The flow field characteristics and heat transfer were investigated. Effects protrusion configuration, depth, pitch, number, axis ratio, angle on performance discussed using realizable k–ε under steady-state condition. These results show that volume a major impact protrusions make zone flows narrow down at leading edge side expand trailing side, which...
Enhanced heat transfer in nanofluids is mainly an effect of flow characteristics. In this article, we investigate the field SiO2/water using a single-phase model, Eulerian-Eulerian multiphase and Euler-Lagrange performing qualitative quantitative comparisons with experimental data. We find that chief microscopic mechanisms underlying microflow enhancement involve irregular micromotions nanoparticles intensified turbulence fluids. Of three models, model most accurate, least predictive, while...
In this paper, two-dimensional numerical simulations are performed to investigate the particle filtration performance of multi-fiber filters using computational fluid dynamics ( CFD) technology. We combine and properties as well fiber size into single dimensionless numbers analyze influence arrangements on system pressure drop capture efficiency during process. The results indicate that motion deposition aerosol particles significantly depend combined effects Brownian diffusion, interception...
The thermal protection technology for high-temperature environment has made great progress in recent years. Restricted by the harsh of oil drilling, design and development measurement-while-drilling instrument (MWD) wells are still a worldwide issue. Although quite few scholars have proposed variety schemes, feasibility or practical using effect not been fully verified. Through comparative analysis various cooling methods, it is considered that active scheme based on split-Stirling...
Abstract With the increase of drilling depth, a large number high‐temperature wells with bottom hole temperatures more than 150°C appear. However, conventional measurement‐while‐drilling (MWD) instruments are no longer suitable. Therefore, it is necessary to design new MWD instrument suitable for downhole long time. Compared other active refrigeration methods, split‐Stirling cryocooler best choice. In this paper, cooling system designed, based on cryocooler. The heat transfer rate entering...
In this study, the failure pressure of submarine oil and gas pipelines was predicted by using five commonly used machine learning models derivative models. Firstly, an efficient local time-intensive finite element algorithm is constructed to generate a database. Secondly, in order improve accuracy algorithm, frontier optimization improved form new predictive regression model IAEO-SVM model. To compare models, comprehensive evaluation standard consisting k-fold cross-validation three...
Abstract Using 2‐acrylamide‐2‐methyl propane sulfonic acid (AMPS), itaconic (IA), and N ‐vinyl‐2‐pyrrolidone (NVP) as monomers, a new retader terpolymer AMPS/IA/NVP (PAIN) was synthesized by free radical aqueous solution copolymerization characterized FTIR H‐NMR. Through the orthogonal experiment, optimum reaction conditions of were obtained: NVP 7.5 wt (mass fraction) %; regulator V 4%; temperature 60°C; initiator 1 %. The intrinsic viscosity number PAIN with different amount (isopropanol)...