首页>
外文OA文献
>Full and Partial Admission Performance of the Simplex Turbine
【2h】
Full and Partial Admission Performance of the Simplex Turbine
展开▼
机译:单纯形涡轮机的全部和部分进气性能
展开▼
免费
页面导航
摘要
著录项
相似文献
相关主题
摘要
The turbines used in rocket-engine applications are often partial-admission turbines, meaning that the flow enters the rotor over only a portion of the annulus. These turbines have been traditionally analyzed, however, assuming full-admission characteristics. This assumption enables the simulation of only a portion of the 360-degree annulus, with periodic boundary conditions applied in the circumferential direction. While this traditional approach to the simulating the flow in partial-admission turbines significantly reduces the computational requirements, the accuracy of the solutions has rarely been evaluated. In the current investigation, both full- and partial-admission three dimensional unsteady Navier-Stokes simulations were performed for a partial-admission turbine designed and tested at NASA Marshall Space Flight Center. The results indicate that the partial-admission nature of the turbine must be included in simulations to properly predict the performance and flow unsteadiness of the turbine.
展开▼