Research

Thermal Management of Electronics

Silicon based microelectronics are likely to be the mainstay of computing for foreseeable future. We are working towards development of new microscale, thermal and fluid transport devices for efficient and on-demand thermal management of high heat dissipating microelectronics, for mobile as well as datacenter applications.

Anand S. (anand.20mez0001@iitrpr.ac.in) 

Shivani Kumari (shivani.23mez0017@iitrpr.ac.in)

Computational Study

Biomimetic wedge micropillar has been proposed in our recent study for thin-film evaporation applications. The performance of the wedged micropillar geometry has been evaluated by adopting a validated numerical modeling approach involving the integration of unit-cell-based analysis into a one-dimensional device-level model. The model involves the generation of an equilibrium meniscus shape using an energy minimization approach in Surface Evolver and utilizing the resulting shape in unit-cell-based fluid flow and thermal CFD simulations. Subsequently, the results of the unit-cell-based analysis are integrated into a device-level model by linking the unit cells for the prediction of dryout heat flux, average and local effective heat transfer coefficient, and evaporator wall superheat.   

Experimental Study

References

Condensation and Dynamics of Small Droplets

Heterogeneous condensation, i.e. phase change of a fluid from vapor to liquid, is a critical physical process in a range of industrial systems. Our work involves investigations into physics of heterogeneous condensation and its interaction with the surface chemistry and texture. The aim is to achieve efficient condensation by controlling the fluid dynamics of the process as customized towards real world applications. 

Gopal Chandra Pal (2018mez0022@iitrpr.ac.in)

Raushan Kumar (2018mez0020@iitrpr.ac.in)

 

Computational Study

Experimental Study

droplet coalescence on superhydrophobic surface_10fps.avi

Coalescence induced droplet jumping over a superhydrophobic surface

Rigid_1060.avi

Experimental validation of jumping of droplets with that of the computational observation

la3c02788_si_003.avi

Dropwise condensation on a planar microgrooved surface at ΔT = 16 K and Tsat = 302 K 

la3c02788_si_002.avi

Dropwise condensation on a hydrophobic microgrooved surface at ΔT = 16 K and Tsat = 302 K 

Surface Micro and Nano Texturing

We are working towards developing scalable surfaces micro and nano textures in various materials that allow us to perform controlled micro-thermofluidic investigations and can achieve significant enhancement in microscale thermal transport under realistic operating conditions.

Anand S. (anand.20mez0001@iitrpr.ac.in)

Gopal Chandra Pal (2018mez0022@iitrpr.ac.in)

Raushan Kumar (2018mez0020@iitrpr.ac.in)

Shivani Kumari (shivani.23mez0017@iitrpr.ac.in)


Research Collaborations:

Funding: