Li-Peng Sun results 27
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Visualizing Particle Movement In Flat Drip Irrigation Emitters With Digital Particle Image VelocimetryNARA Subscribed
A computer numerical control (CNC) engraving technology on a full‐scale transparent model of a flat emitter is presented, combined with digital particle image velocimetry (DPIV) and planar laser‐induced fluorescence (PLIF), to observe the movement characteristics of particles with different diameters in the prototype and transparent model of embedded flat emitters. The results show that the velocity, vorticity, the overall dis...
Visualizing Particle Movement in Cylindrical Drip Irrigation Emitters with Digital Particle Image VelocimetryNARA Subscribed
On the basis of precise analysis of the structure of the cylindrical emitter, we brought forward a testing method to visualize the particle movement with the model of the last stage unit segment of the flow path in the cylindrical emitter and digital particle image velocimetry (DPIV) technology. The movement characteristics of 10, 50 and 100 µm particles were tested. The results showed that the method was reasonable and effect...
Aim To investigate how ecosystem water‐use efficiency ( WUE ) varies spatially under different climate conditions, and how spatial variations in WUE differ from those of transpiration‐based water‐use efficiency ( WUE t ) and transpiration‐based inherent water‐use efficiency ( IWUE t ). Location Global terrestrial ecosystems. Methods We investigated spatial patterns of WUE using two datasets of gross primary productivity ( GPP...