Ultra-high speed particle image velocimetry on drop-on-demand jetting
An experimental setup to study the dynamics of droplet jetting from a commercially available print-head is described. A MicroFab print-head with an 80 μm diameter transparent nozzle was set to print droplets at a speed of 5 m/s at a frequency of 7 kHz. A Particle Image Velocimetry (PIV) scheme consi...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2011
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| _version_ | 1826301344982499328 |
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| author | Castrejón-Pita, JR Hoath, S Castrejón-Pita, A Morrison, N Hsiao, W Hutchings, I |
| author_facet | Castrejón-Pita, JR Hoath, S Castrejón-Pita, A Morrison, N Hsiao, W Hutchings, I |
| author_sort | Castrejón-Pita, JR |
| collection | OXFORD |
| description | An experimental setup to study the dynamics of droplet jetting from a commercially available print-head is described. A MicroFab print-head with an 80 μm diameter transparent nozzle was set to print droplets at a speed of 5 m/s at a frequency of 7 kHz. A Particle Image Velocimetry (PIV) scheme consisting of an optical microscope coupled to an ultra-high speed camera is utilized to capture the motion of particles suspended in a model transparent ink. This experimental arrangement images the flow at the centre of a glass cylindrical nozzle and above the fluid meniscus at a speed of half a million frames per second. Velocity fields are obtained from an approximately 200 μm thickness layer of fluid at the inside of the nozzle. Experimental results are compared with Lagrangian finite-element numerical simulations under identical fluid and jetting conditions with good agreement. The advantages, challenges and current limitations of this approach are discussed. ©2011 Society for Imaging Science and Technology. |
| first_indexed | 2024-03-07T05:31:00Z |
| format | Journal article |
| id | oxford-uuid:e2459f67-0a72-47dd-9932-20008602baee |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:31:00Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oxford-uuid:e2459f67-0a72-47dd-9932-20008602baee2022-03-27T09:59:55ZUltra-high speed particle image velocimetry on drop-on-demand jettingJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e2459f67-0a72-47dd-9932-20008602baeeEnglishSymplectic Elements at Oxford2011Castrejón-Pita, JRHoath, SCastrejón-Pita, AMorrison, NHsiao, WHutchings, IAn experimental setup to study the dynamics of droplet jetting from a commercially available print-head is described. A MicroFab print-head with an 80 μm diameter transparent nozzle was set to print droplets at a speed of 5 m/s at a frequency of 7 kHz. A Particle Image Velocimetry (PIV) scheme consisting of an optical microscope coupled to an ultra-high speed camera is utilized to capture the motion of particles suspended in a model transparent ink. This experimental arrangement images the flow at the centre of a glass cylindrical nozzle and above the fluid meniscus at a speed of half a million frames per second. Velocity fields are obtained from an approximately 200 μm thickness layer of fluid at the inside of the nozzle. Experimental results are compared with Lagrangian finite-element numerical simulations under identical fluid and jetting conditions with good agreement. The advantages, challenges and current limitations of this approach are discussed. ©2011 Society for Imaging Science and Technology. |
| spellingShingle | Castrejón-Pita, JR Hoath, S Castrejón-Pita, A Morrison, N Hsiao, W Hutchings, I Ultra-high speed particle image velocimetry on drop-on-demand jetting |
| title | Ultra-high speed particle image velocimetry on drop-on-demand jetting |
| title_full | Ultra-high speed particle image velocimetry on drop-on-demand jetting |
| title_fullStr | Ultra-high speed particle image velocimetry on drop-on-demand jetting |
| title_full_unstemmed | Ultra-high speed particle image velocimetry on drop-on-demand jetting |
| title_short | Ultra-high speed particle image velocimetry on drop-on-demand jetting |
| title_sort | ultra high speed particle image velocimetry on drop on demand jetting |
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