A5018887647- Irrigation Practices and Water Management
- Hydraulic flow and structures
- Hydrology and Sediment Transport Processes
- Plant Water Relations and Carbon Dynamics
- ECG Monitoring and Analysis
- Greenhouse Technology and Climate Control
- Heat Transfer Mechanisms
- Engineering and Agricultural Innovations
Ministry of Agriculture and Rural Affairs
2022-2024
Shihezi University
2021-2024
Tianjin Special Equipment Supervision and Inspection Technology Research Institute
2022
Xinjiang Production and Construction Corps
2021
Drip irrigation has become an application trend of water-saving technology due to its excellent water-use efficiency. However, the energy dissipation form commonly used labyrinth channel is relatively simple, and corresponding mechanism research inadequate. This article proposes a new kind structure drip emitters based on scalariform perforation plates in plant xylem vessels. We establish total 16 sets orthogonal schemes. Using numerical simulation physical experiments, hydraulic performance...
ABSTRACT The perforated drip irrigation emitter (PDIE) is a novel incorporating multiple energy dissipation mechanisms, chiefly hedging, deflection, and friction. To characterize the influences of structural parameters vortices on hydraulic performance PDIE, discharge exponent, rate, unit constant were analyzed via experiments numerical simulation. key findings are: (1) Discharge exponents PDIE ranged from 0.478 to 0.515; average high-pressure exceeded low pressure by 4.882%. (2) four...
Abstract The centre of the vortex within drip irrigation emitter easily forms a low‐speed or zero‐velocity zone, which causes sediment deposition and blocks narrow channel emitter. To solve this problem, funnel‐shaped was designed optimized. Numerical simulations field tests were conducted to compare analyse flow index, energy dissipation coefficient relative ratio results showed: (1) When incident angle ( θ ) diversion increased from 0 37.4°, 20% 64%. main way in changed impingement water...
To improve the irrigation quality and anti-clogging performance of emitter, it is necessary to design optimize its flow channel structure. The shunt-hedging drip emitter (SHDIE) a new type channel. Using computational fluid dynamics, by setting different conditions (such as particle size injection position), motion trajectory sand particles field distribution characteristics were simulated. According simulation results, structural optimization scheme was proposed, physical experiments...
As a technical method to detect cardiomotility of human body, ECG monitoring is widely used in various clinical departments hospital, as an important guarantee for disease diagnosis, patients saving and treatment. Therefore, the testing management performance equipment great importance. In view researches from perspective disposable electrode testing, study puts forward design scheme tester, confirms effectiveness through test electrode.