Droplet formation dynamics under perpendicular and head-on dispersed phase configuration in a microfluidic T-junction DOI
Piyush Kumar, Vijay Kumar, Manabendra Pathak

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(11)

Published: Nov. 1, 2024

Controlled and efficient droplet formation in microfluidic devices is highly desired chemical biological analysis, drug delivery, micro-reactor, material synthesis, among others. Achieving morphologies often depends on fine-tuning of fluid thermophysical properties flow dynamics. Furthermore, microchannel geometry modification offers an way exploring controlled generation devices. This work focuses probing the influence dispersed phase configurations dynamics T-junction Specifically, we investigate two different involving “perpendicular” (θ=90°) “head-on” (θ=180°) interactions continuous fluids at junction. We perform comprehensive experiments to role parameters such as capillary number (Ca), rate ratio (φ) both configurations. Our show that head has increased time compared perpendicular geometry, which can be attributed a lower interfacial drag fluid. substantiate this hypothesis by performing micro particle image velocimetry (μ-PIV) head-on higher vorticity inside evolving droplet. prevents interface deformation, slowing down necking, results film length configuration.

Language: Английский

Micro-PIV experimental measurements of vortex evolution inside generated droplets in T-inlet microchannel DOI
Wang Cao, Qingjun Yang, Rong Guo

et al.

Experimental Thermal and Fluid Science, Journal Year: 2025, Volume and Issue: unknown, P. 111418 - 111418

Published: Jan. 1, 2025

Language: Английский

Citations

0
Modeling and analysis of droplet generation in microchannels using interpretable machine learning methods DOI
Mengqi Liu, Haoyang Hu, Yongjin Cui

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161972 - 161972

Published: March 1, 2025

Language: Английский

Citations

0
Droplet formation dynamics under perpendicular and head-on dispersed phase configuration in a microfluidic T-junction DOI
Piyush Kumar, Vijay Kumar, Manabendra Pathak

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(11)

Published: Nov. 1, 2024

Controlled and efficient droplet formation in microfluidic devices is highly desired chemical biological analysis, drug delivery, micro-reactor, material synthesis, among others. Achieving morphologies often depends on fine-tuning of fluid thermophysical properties flow dynamics. Furthermore, microchannel geometry modification offers an way exploring controlled generation devices. This work focuses probing the influence dispersed phase configurations dynamics T-junction Specifically, we investigate two different involving “perpendicular” (θ=90°) “head-on” (θ=180°) interactions continuous fluids at junction. We perform comprehensive experiments to role parameters such as capillary number (Ca), rate ratio (φ) both configurations. Our show that head has increased time compared perpendicular geometry, which can be attributed a lower interfacial drag fluid. substantiate this hypothesis by performing micro particle image velocimetry (μ-PIV) head-on higher vorticity inside evolving droplet. prevents interface deformation, slowing down necking, results film length configuration.

Language: Английский

Citations

1