A two-dimensional model is suggested for calculation of thermal radiation and temperature profile on integrated four-nozzle surfaces of a spacecraft. Correlation between temperature increase with geometry and emissivi...A two-dimensional model is suggested for calculation of thermal radiation and temperature profile on integrated four-nozzle surfaces of a spacecraft. Correlation between temperature increase with geometry and emissivity is obtained through comprehensive computation.Results of the correlation agree with data from three-dimensional calculation. Correlationsfor twin cylinders and plates with infinitive length are also proposed.展开更多
Three-dimensional numerical model, which employed porosity factors to simulate the effects of obstacles in the fluid domain, was developed. Computer code-FASTOR-3D, based on SIMPLE algorithm and staggered grid scheme,...Three-dimensional numerical model, which employed porosity factors to simulate the effects of obstacles in the fluid domain, was developed. Computer code-FASTOR-3D, based on SIMPLE algorithm and staggered grid scheme, was initiated and verified with several benchmark solutions. Application of this code on heat transfer and flows in sodium pool of a fast breeder reactor, turned out meaningful database. The vast numerical result is visualized with affiliated software DV which converts flow and temperature fields into vivid colors for convenient analysis.展开更多
文摘A two-dimensional model is suggested for calculation of thermal radiation and temperature profile on integrated four-nozzle surfaces of a spacecraft. Correlation between temperature increase with geometry and emissivity is obtained through comprehensive computation.Results of the correlation agree with data from three-dimensional calculation. Correlationsfor twin cylinders and plates with infinitive length are also proposed.
文摘Three-dimensional numerical model, which employed porosity factors to simulate the effects of obstacles in the fluid domain, was developed. Computer code-FASTOR-3D, based on SIMPLE algorithm and staggered grid scheme, was initiated and verified with several benchmark solutions. Application of this code on heat transfer and flows in sodium pool of a fast breeder reactor, turned out meaningful database. The vast numerical result is visualized with affiliated software DV which converts flow and temperature fields into vivid colors for convenient analysis.