spray drift 中文意思是什麼
spray drift
解釋
噴霧偏差-
Because of its special structure, the high velocity flow under the shield, big vortex and upcast flow behind the shield will affect the spray drift. if these situations could be changed, the drift can be reduced further
但由於該罩蓋的結構特點，其下方產生較大速度的運動氣流和罩蓋後部產生的渦流以及上旋氣流，將直接影響霧滴的飄失。 -
A slot was cut in the back plate of the double - foil shield to improve the flow field with air diversion method. the flow field and droplets trajectory near the shield are simulated in wind tunnel by fluent software to analyze the wake flow affecting the spray drift. from simulation, the improved shield spray in reducing drift is better than double - foil shield spray and conventional spray in six types of wind velocity
本文採用導流法在雙圓弧罩蓋上開口，利用fluent模擬分析和比較罩蓋噴霧流場，並模擬該流場下的霧滴運動軌跡來分析霧滴的飄失性，模擬結果表明：結構改進后的罩蓋噴霧流場得到改善，其減少霧滴飄失的效果好於原罩蓋，更優于常規無罩蓋噴霧。 -
Spray drift is the movement of airborne spray particles.
噴霧漂浮就是噴霧微粒在空氣中的移動。 -
So the shield structure was improved to change the flow field, and experiments will be conducted to validate the effect in reducing spray drift
因此，作者提出雙圓弧罩蓋結構的改進方法，並進行減少霧滴飄失的對比試驗研究。 -
Equipment for crop protection - methods for field measurement of spray drift
農作物保護設備.噴霧漂移的現場測量方法 -
Beware of spray drift, do not inhale the mist. avoid contact with mouth, eyes, skin and clothing
小心藥霧，避免吸入或接觸到口、眼睛、皮膚及衣服。 -
Mechanical shield spray has good effect in reducing spray drift with low cost, simple structure. the structure is the key point
機械式罩蓋噴霧是一種結構簡單、價格便宜和減少霧滴飄失效果好的噴霧方法，其中罩蓋結構起著關鍵的作用。 -
Experimental constants include : ambient temperature 291k ~ 301k, rh 15 % ~ 21. 2 %, wind velocity 3. 2m / s at the nozzle position and horizontal to the spray fan, others are same as the fore experiment. the tendency of the two experiments results is consistent with the tendency from simulation. that indicate the improved shield spray is better than the original shield spray in reducing spray drift, and also more better than conventional spray without shield
風洞試驗參數：噴霧藥液為含1 bsf的水溶液，風速1 . 4m s ，風向垂直於噴霧扇面，溫度281k 288k ，相對濕度rh9 20 ；室內試驗參數：噴霧藥液為含2 bsf的水溶液，噴頭處風速為3 . 2m s ，風向平行於噴霧扇面，溫度291k 301k ，相對濕度rh15 21 . 2 ；分別在噴頭下風向噴幅外的空中和地面布點收集飄失和飄移沉積的霧滴量，作為評價減少霧滴飄失效果的指標：試驗結果表明：改進后的罩蓋噴霧減少霧滴飄失的效果好於雙圓弧未開口罩蓋噴霧，常規無罩蓋噴霧的霧滴飄失量大於開口罩蓋噴霧。
分享友人