TRACKER HTHP 350高溫高壓
新聞排行榜
更多-
01
-
02
-
03
-
04
東方德菲泡沫儀中標(biāo)表界面功能材料創(chuàng)新團(tuán)隊(duì)設(shè)備購置采購項(xiàng)目
-
05
-
06
-
07
-
08
產(chǎn)品展示
更多聲懸浮文獻(xiàn):聲懸浮器中的扁球狀液滴蒸發(fā)
-
提供商
北京東方德菲儀器有限公司
-
資料大小
1.3MB
- 資料圖片
-
下載次數(shù)
78次
-
資料類型
PDF 文件
-
瀏覽次數(shù)
838次
The modelling of evaporation in which droplet geometry deviates from sphericity, i.e., oblate spheroid, when the droplet experiences high dynamic stresses or a high Weber number, is important in many applications. The validation of such theoretical models is often difficult to achieve experimentally. The acoustic levitation technique was used to investigate the evaporation of an oblate spheroid for different liquids. Evaporation of oblate droplet at constant aspect ratio is realized through the course of evaporation in the acoustic levitator by continuously adjusting the applied acoustic force on the droplet. A Two-dimensional axisymmetric computational model in oblate coordinate system is presented to predict droplet evaporation driven by the acoustic boundary layer, the model calculates the vapor flux at each grid point on droplet surface. The evaporation follows the d 2 -law and a good agreement between model prediction and experiments is demonstrated. The acoustic levitator allows for the study of the evaporation of freely suspended deformed droplets and validates the theoretical model of oblate droplet evaporation.