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Three-dimensional numerical simulation and analysis of the complicated unsteady compressible turbulence flow field in a large-scale gas control valve are performed, using computational fluid dynamics method. Flow visualization of three-dimensional flow field at different valve opening is presented. The velocity distribution and pressure loss of gas flow are studied. The flow behavior of eddy current...
A new-type burner is presented which used transverse airflow to control the air-jet angle from the burner instead of traditionally used swing burner which used mechanical components to control the installation angle of the burner. Jamming problems of traditional swing burners can be avoided. The structure and working principle of the airflow-controlled swing burners are also introduced. Numerical...
A modified physics-based method is adopted to control the water waves, and the discretization of the governing 2D N-S equation is taken as the interaction between the variables in spaces, based on the idea of spreading though the neighboring regions. Meshing model of the water surface is based on a terrain LOD scheme called Tiled Quad-tree. With that the region of water surface can be extended unboundedly...
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