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Experimental and Numerical Investigation of Swirling Flow on Triple Elbow Pipe Layout 认领
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作者 Hideharu Takahashi San Shwin +2 位作者 Ari Hamdani Nobuyuki Fujisawa Hiroshige Kikura 《流量控制、测量及可视化(英文)》 2020年第2期45-62,共18页
The secondary flow downstream of a triple elbow layout was studied experimentally and numerically to visualize the flow behavior under swirling inlet flow conditions. The inlet swirling condition was generated by a sw... The secondary flow downstream of a triple elbow layout was studied experimentally and numerically to visualize the flow behavior under swirling inlet flow conditions. The inlet swirling condition was generated by a swirl generator, consisting of a rotary pipe and honeycomb assembly. The experiments were carried out in turbulent water flow condition at Reynolds number Re = 1 × 104 and inlet swirl intensity S = 1. Ultrasonic measurements were taken at four locations downstream of the third elbow. The two-dimensional velocity field of the flow field was measured using the phased array ultrasonic velocity profiler technique to evaluate the flow field with separation. Furthermore, a numerical simulation was performed and its results were compared with the experimental data. The numerical result was obtained by solving three-dimensional, Reynolds-averaged Navier-Stokes equations with the renormalization group k-ε turbulence model. The experimental results confirmed that the swirling flow condition modified the size of the separation region downstream of the third elbow. A qualitative comparison between the experimental and CFD simulation results of the averaged velocity field downstream of the third elbow showed similar tendency on reverse flow. 展开更多
关键词 Swirling Flow TRIPLE ELBOW ULTRASOUND Phased ARRAY Sensor VELOCITY Profile CFD Numerical Simulation
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肘关节恐怖三联征损伤的临床治疗 认领
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作者 李鑫 王云成 +1 位作者 修建义 李杰 《吉林医学》 CAS 2019年第10期2195-2196,共2页
目的:探讨肘关节恐怖三联征损伤的临床治疗。方法:选取2016年9月~2017年9月宜汉双河王烟灰医院收治的18例肘关节恐怖三联征损伤患者为研究对象,然后对患者的肘关节后外侧、前内侧联合入路骨折复位内固定和韧带修复进行治疗,观察患者的... 目的:探讨肘关节恐怖三联征损伤的临床治疗。方法:选取2016年9月~2017年9月宜汉双河王烟灰医院收治的18例肘关节恐怖三联征损伤患者为研究对象,然后对患者的肘关节后外侧、前内侧联合入路骨折复位内固定和韧带修复进行治疗,观察患者的临床治疗效果。结果:治疗后临床效果评估为优的患者10例,为良的患者5例,为可的患者2例,为差的患者1例,优良率为83.3%。治疗后随访13~29个月,平均随访17个月,其中16例患者没有疼痛感,2例患者有轻微疼痛感,并且患者的冠状突和桡骨骨折均明显愈合。结论:对肘关节恐怖三联征损伤进行有效的治疗可以促进关节功能恢复。 展开更多
关键词 肘关节恐怖三联征 临床治疗效果 骨折
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JAS(关节静态牵伸训练)在肘关节'恐怖三联征'患者康复治疗中的应用观察 认领
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作者 马健猛 《中国伤残医学》 2018年第23期18-20,共3页
目的:分析肘关节'恐怖三联征'患者采用JAS实施康复治疗的效果.方法:从我院2017年1月-12月随机选择40例肘关节'恐怖三联征'患者实施康复治疗,将患者分为观察组和对照组,每组各20例,2组患者通过手术治疗之后,在4-6周对照... 目的:分析肘关节'恐怖三联征'患者采用JAS实施康复治疗的效果.方法:从我院2017年1月-12月随机选择40例肘关节'恐怖三联征'患者实施康复治疗,将患者分为观察组和对照组,每组各20例,2组患者通过手术治疗之后,在4-6周对照组实施物理因子以及康复训练等治疗,而观察组则在此基础上增加JAS治疗,对比患者的肘关节功能情况和肘关节活动度.结果:观察组患者肘关节功能情况和肘关节活动度都优于对照组,差异显著(P<0.05),有统计学意义.结论:肘关节'恐怖三联征'患者采用JAS实施康复治疗,可以有效促进患者肘关节功能尽快恢复,值得运用和推广. 展开更多
关键词 JAS(关节静态牵伸训练) 肘关节'恐怖三联征'患者 康复治疗
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