James Hallendorff Suman Sinha Ray Alexander L. Yarin

 Investigate instability mechanism in melt blowing

 Used to measure Lagrangian motion

 Fast Fourier Transform

 Many harmonics, few that make a difference

 Determine correlation between string length and snapping length or air velocity and snapping length

 Gravity causes artificial snapping point- makes unreliable results  New setup

 Using a fixed-length criteria skews results  Compare ratios of width to snapping length

 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 Conclusion: 2 months is not enough

 "MELT BLOWN TECHNOLOGY." UT Knoxville | College of Engineering. Web. 16 July  EEC-NSF Grant #  Dr. Takoudis  Dr. Jursich  Qian Tao