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Droplet Impact on Different Natural and Engineered Surfaces
Droplet Impact on Different Natural and Engineered Surfaces
Superhydrophobic Leaves
Three Superhydrophobic leaves: Cassia tora, Adiantum capillus-veneris, and Bauhinia variegata.
Effect of Macro-, Micro-, and Nano-Scale Surface Features and Surface Chemistry.
Thermodynamic framework for instability in static conditions.
Paper: (Physics of Fluids) https://doi.org/10.1063/5.0172707
Fabricated lubricant-infused textured surfaces and analyzed droplet impact using high-speed imaging.
Demonstrated that strong oil-surface interaction enables complete droplet rebound.
Showed that texture spacing controls droplet spreading, contact time, and adhesion.
Paper: (Physics of Fluids) https://doi.org/10.1063/5.0236861
Liquid Imperiginated Surfaces
Smooth PDMS
Studied droplet impact on smooth PDMS surfaces with oil coating and oil absorption using high-speed imaging.
Showed that oil absorption, not surface coating, governs droplet rebound behavior.
Demonstrated that strong van der Waals oil- PDMS interaction enables complete droplet rebound.
Paper: (Langmuir) https://pubs.acs.org/doi/10.1021/acs.langmuir.5c02765
Fabricated soft textured PDMS surfaces with oil coating and oil absorption, and studied droplet impact using high-speed imaging.
Showed that silicone oil absorption forms a stable lubricating film, enabling complete droplet rebound across impact conditions.
Demonstrated that lubricant type and texture spacing control rebound, adhesion, and durability under repeated impacts.
Paper: (In Review)
Textured PDMS
Ice and Hydrate Adhesion on Engineered Surfaces
Ice and Hydrate Adhesion on Engineered Surfaces
Developed an industrially scalable, low-cost liquid-impregnated aluminium surface using chemical etching and boiling water treatment.
Achieved extreme hydrate-phobicity, reducing hydrate adhesion by more than four orders of magnitude compared to smooth aluminium.
Demonstrated stable omniphobic performance across temperatures and lubricant types, suitable for real-world oil and gas applications.
Paper: (Surfaces and Interfaces) https://www.sciencedirect.com/science/article/pii/S2468023025010016
Entry of Superhydrophobic and Liquid-Impregnated Spheres into the Liquid Pool
Studied water entry of aluminium spheres with superhydrophobic and lubricant-infused surfaces.
Found that lubricant-infused surfaces reduce drag and suppress cavity formation.
Showed surface texture controls pinch-off and jet dynamics.
Paper (Under review) https://arxiv.org/abs/2508.02832
Electro-Wettabilty
Electro-Wettabilty
Rheological Behaviour of Magnetorheological Fluids:
Rheological Behaviour of Magnetorheological Fluids:
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