Abstract: The piped carriage conveying processes of the barreled material pipeline hydraulic transportation were studied from the perspective of the flow field. Vehicle body annulus flow field characteristics were analyzed by testing run of the vehicle under controlled conditions of flow from 30m3/ h to 70m3/ h.The vehicle' s length was 1oomm, the diameter was 60mm , and the load was 750g. It is concluded that annulus flow field around the vehicle body is in a turbulent state. The sectional pressure , axial velocity and circumferential velocity all present a generally increasing with the increase of growing flow rate. With the same condition of flow volume , the axial velocity values in the middle section of vehicle near moving carriage wall are higher and the one near the stationary duct wall are lower. It evenly distributes better in middle section than in the front and back sections along the carriage. In each flow conditions , the sectional circumferential velocity distribution shows obvious unevenness. Uniformity of the axial velocity profile distribution gets better with the increase of flow volume

Key words: hydraulic transportation, annulus flow field, flow volume, cross-section pressure, velocity distribution

摘要： 为进一步完善从流场角度对简装料管道水力输送管道车运移过程的研究，采用试验的方法对车长100 mm 、直 径60 mm 、荷载750 g 的管道车在30 -70 旷/h 不同流量控制条件下运行时管道车车身环隙流流场水力特性进行分 析。得到了车体周围环隙流为紊流状态;断面内压力、轴向速度以及周向速度均随流量的增大呈现总体增大的趋 势;同一流量条件下，轴向速度在车中断面内分布为运动管道车壁附近较大、静止管道壁面附近较小，且沿车体在车 中断面内分布较车前、车后断面更为均匀;各流量条件下，断面内周向速度分布均呈现较明显的不均匀性，轴向速度 分布均匀性随流量增大而提高。

关键词: 水力输送, 环隙流场, 流量, 断面压力, 速度分布