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Due to the valveless pulse combustor’s simplicity in structure and reliability in performance, it may be the most ideal low cost high efficient combustion system for agriclutural energy. In a typical valveless pulse combustion, a numerical simulation is performed to understand the variation of flow field and to research the performance of the valveless pulse combustor by use of general CFD simulation...
Due to its simplicity in structure and reliability in performance, the valveless pulsejet may be the most ideal low cost propulsion system for small-sized aerospace vehicle. A series of numerical simulations are performed to understand the variation of flow field and to research the performance in china type valveless pulsejet. CFD software (CFX11.0) is used to numerically predict components length's...
Flowfleld in aero combustor is simulated in three-dimensional curvilinear coordinate system. RNG k-?? turbulence model, EBU-SOM turbulence combustion model is used to consider turbulent viscosity and reaction rate in gas phase flow, respectively. In order to consider numerical accuracy of radiation model, discrete-ordinates model and six-flux model are used and simulation results are compared with...
CFX is applied to study of the transonic multicomponent gas field in the adjustable convergent-divergent nozzles of the aero engine. The influences of different flight conditions on the three-dimensional transonic flow fields are analyzed numerically. The accuracy of the k-omega turbulence model is verified through the comparison between the numerical results and experiment data. And this turbulence...
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