james hallendorff suman sinha ray alexander l. yarin
TRANSCRIPT
Dynamics of Thread Movement in Turbulent
Flow FieldJames HallendorffSuman Sinha RayAlexander L. Yarin
Determine correlation between string length and snapping length or air velocity and snapping length
Snapping Point
5 10 15 20 25 30 350
2
4
6
8
10
12
30 Bar String Length vs. Snap Length
3.5x
String Length
Snap L
ength
Using a fixed-length criteria skews results Compare ratios of width to snapping length
Revised Measurement Strategy
8 10 12 14 16 18 20 220
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
Calculated RatioJudgment Ratio
String Length
Rati
o
Use the frequencies found in the FFT to augment theoretical model
Analyze the movement of the string in a vertical position
Use polymer solution to simulate melt blowing and to compare it to the thread movement model
Future Work
Conclusion: 2 months is not enough