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The tubular pump device model including rotor, stator and inlet and outlet passages was simulated based on SIMPLEC arithmetic and standard k-?? RNG turbulence model. The match of rotor and stator in tubular pump was optimized. The numerical results show that the device model has a steady flow field and high efficiency when the distance between rotor and stator is 0.11D2. With the distance increasing...
Mine pre-stressed cable bolt under impact of large loads may be broken or pulled out, and during this loading process, violent friction taken place between steel strand and anchorage will produce high-temperature and friction sparks. No existing test bed can conduct impact loading experiment. In order to test the process, we designed a hydraulic impact loading system for mine cable bolt for the first...
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