A5018165968- Advanced ceramic materials synthesis
- Diamond and Carbon-based Materials Research
- Gas Dynamics and Kinetic Theory
- Thermal properties of materials
- Radiative Heat Transfer Studies
- Aluminum Alloys Composites Properties
- Aerogels and thermal insulation
- Vacuum and Plasma Arcs
- Fluid Dynamics and Heat Transfer
- Erosion and Abrasive Machining
- Tribology and Wear Analysis
- Surface Modification and Superhydrophobicity
- Fluid Dynamics Simulations and Interactions
- Composite Material Mechanics
- Advanced Surface Polishing Techniques
- Advanced Sensor Technologies Research
- Heat Transfer and Optimization
- Heat Transfer and Boiling Studies
China Aerospace Science and Technology Corporation
2023-2025
China Aerodynamics Research and Development Center
2013-2023
A physical model to simulate the mesoscale morphology evolution of carbon fiber is established characterize thermal mechanical erosion behavior C/C composite in high temperature and pressure gas flow. The process single calculated by DSMC method. fracture criteria are developed theory mechanics materials. Finally, an engineering method for prediction formulated, predictions agree well with experiment results.
In this paper, the moving particle semi-implicit method (MPS) is extended from calculating free mobility to simulating extremely viscous and temperature-dependent molten layer flow of SiO2f/SiO2 composite material under aerodynamic heating conditions, which includes strong shear incoming flow. A for applying heat flux airflow shear, based on conceptual approach, has been established. Heat transfer, melting, solidification, evaporation behaviors are considered, with viscosity variations also...
A mathematical model based on minimal thermal resistance and equal law of specific equivalent conductivity is developed to discuss the heat transfer characteristics ablative insulating material from mesoscopic scale. Based statistical results parameters, microstructure unit cell was established analyze influence rule parameterization which includes size, distribution, positional relation microsphere fiber. The show that decreases with density, distribution area, distance space volume...
High temperature measurements and calibration are extremely complicated, requiring new techniques implements to remove the barriers. Heat pipe as an advanced heat transport device could satisfy this need, is demonstrated have good uniformity in its inner chamber. In paper, a method for accurate measurement of pipes, called Feedback Pressure Temperature (FPT), presented. To verify feasibility reduce realization difficulties, experiment copper with water working fluid intermediate area...
The microstructure of the carbonized layer low-density resin-based ablative thermal insulation material is observed, and multiscale unit cell models are established for residual carbon deposition mode a carbonization process, then conductivity coefficient predicted using finite element method. heat transfer characteristics discussed studied. results show that among several established, obtained by cross-linked model matrix more accurate, deviation compared with experimental within 20%, which...
This paper is aimed at investigating the microstructure evolution of resin-based ablative materials under aerodynamic heating. The microstructure, morphology, material density, and thermophysical parameters different positions after heating were deeply studied. changes in microstructural characteristics caused by complex reaction processes investigated, including porosity, overlap relationship between components, mutual positional relationship. heat transfer discussed. By analyzing mechanism...