Search Results - "Garimella, Suresh V."

A hierarchical manifold microchannel heat sink array for high-heat-flux two-phase cooling of electronics by Drummond, Kevin P., Back, Doosan, Sinanis, Michael D., Janes, David B., Peroulis, Dimitrios, Weibel, Justin A., Garimella, Suresh V.

“…•A hierarchical manifold microchannel heat sink is fabricated and tested in two-phase operation.•A thin film, serpentine heater provides uniform heating over…”
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Enabling Highly Effective Boiling from Superhydrophobic Surfaces by Allred, Taylor P, Weibel, Justin A, Garimella, Suresh V

“…A variety of industrial applications such as power generation, water distillation, and high-density cooling rely on heat transfer processes involving boiling…”
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Effect of particle size on surface-coating enhancement of pool boiling heat transfer by Sarangi, Suchismita, Weibel, Justin A., Garimella, Suresh V.

“…The enhancement of pool boiling heat transfer by copper-particle surface coatings is experimentally investigated, using the wetting dielectric fluid FC-72. In…”
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Electronics Thermal Management in Information and Communications Technologies: Challenges and Future Directions by Garimella, Suresh V., Persoons, Tim, Weibel, Justin A., Gektin, Vadim

“…This paper reviews thermal management challenges encountered in a wide range of electronics cooling applications from large-scale (data center and…”
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Assessment of Water Droplet Evaporation Mechanisms on Hydrophobic and Superhydrophobic Substrates by Pan, Zhenhai, Dash, Susmita, Weibel, Justin A, Garimella, Suresh V

“…Evaporation rates are predicted and important transport mechanisms identified for evaporation of water droplets on hydrophobic (contact angle ∼110°) and…”
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Design of multifunctional lattice-frame materials for compact heat exchangers by Son, Karen N., Weibel, Justin A., Kumaresan, Vellaisamy, Garimella, Suresh V.

“…•Flow and heat transfer in lattice-frame materials (LFM) is simulated.•Experiments are performed to validate the numerical approach.•Hydraulic and thermal…”
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Coalescence-Induced Jumping of Multiple Condensate Droplets on Hierarchical Superhydrophobic Surfaces by Chen, Xuemei, Patel, Ravi S., Weibel, Justin A., Garimella, Suresh V.

“…Coalescence-induced jumping of condensate droplets from a superhydrophobic surface with hierarchical micro/nanoscale roughness is quantitatively characterized…”
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Patterning the condenser-side wick in ultra-thin vapor chamber heat spreaders to improve skin temperature uniformity of mobile devices by Patankar, Gaurav, Weibel, Justin A., Garimella, Suresh V.

“…•Design of ultra-thin vapor chambers with improved condenser-side temperature uniformity.•Wick designs are evaluated using a 3D numerical vapor chamber…”
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Microchannel size effects on local flow boiling heat transfer to a dielectric fluid by Harirchian, Tannaz, Garimella, Suresh V.

“…Heat transfer with liquid–vapor phase change in microchannels can support very high heat fluxes for use in applications such as the thermal management of…”
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Experimental investigation of boiling regimes in a capillary-fed two-layer evaporator wick by Sudhakar, Srivathsan, Weibel, Justin A., Garimella, Suresh V.

“…•Two-layer evaporator wick designs for vapor chambers are fabricated and tested.•A novel test facility is developed to characterize capillary-fed boiling in…”
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Characterization of evaporation and boiling from sintered powder wicks fed by capillary action by Weibel, Justin A., Garimella, Suresh V., North, Mark T.

“…The thermal resistance to heat transfer into the evaporator section of heat pipes and vapor chambers plays a dominant role in governing their overall…”
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Effects of channel dimension, heat flux, and mass flux on flow boiling regimes in microchannels by Harirchian, Tannaz, Garimella, Suresh V.

“…Experiments are conducted with a perfluorinated dielectric fluid, Fluorinert FC-77, to investigate the effects of channel size and mass flux (225–1420 kg/m 2s)…”
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Two-phase flow morphology and local wall temperatures in high-aspect-ratio manifold microchannels by Drummond, Kevin P., Weibel, Justin A., Garimella, Suresh V.

“…•Characterization of two-phase flow through a single manifold microchannel.•Test device that mimics the heating conditions and fin effects present in…”
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A microscale model for thin-film evaporation in capillary wick structures by Ranjan, Ram, Murthy, Jayathi Y., Garimella, Suresh V.

“…A numerical model is developed for the evaporating liquid meniscus in wick microstructures under saturated vapor conditions. Four different wick geometries…”
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On the transient thermal response of thin vapor chamber heat spreaders: Optimized design and fluid selection by Patankar, Gaurav, Weibel, Justin A., Garimella, Suresh V.

“…•Guidelines identified for the design of vapor chambers to improve performance under transient conditions.•Parametric optimization of the thicknesses of the…”
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On the transient thermal response of thin vapor chamber heat spreaders: Governing mechanisms and performance relative to metal spreaders by Patankar, Gaurav, Weibel, Justin A., Garimella, Suresh V.

“…•Identified key mechanisms that govern transient thermal response of vapor chambers.•Experimentally verified these key mechanisms by testing a vapor chamber…”
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Characteristics of an evaporating thin film in a microchannel by Wang, Hao, Garimella, Suresh V., Murthy, Jayathi Y.

“…An evaporating meniscus in a microchannel is investigated through an augmented Young–Laplace model and the kinetic theory-based expression for mass transport…”
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The effect of lateral thermal coupling between parallel microchannels on two-phase flow distribution by Van Oevelen, Tijs, Weibel, Justin A., Garimella, Suresh V.

“…•A model for two-phase flow distribution in systems of thermally coupled, heated parallel channels is developed.•Thermal coupling can redistribute the heat…”
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Bubble nucleation characteristics in pool boiling of a wetting liquid on smooth and rough surfaces by McHale, John P., Garimella, Suresh V.

“…Quantitative measurements are obtained from high-speed visualizations of pool boiling at atmospheric pressure from smooth and roughened surfaces, using a…”
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Buoyancy-induced on-the-spot mixing in droplets evaporating on nonwetting surfaces by Dash, Susmita, Chandramohan, Aditya, Weibel, Justin A, Garimella, Suresh V

“…We investigate hitherto-unexplored flow characteristics inside a sessile droplet evaporating on heated hydrophobic and superhydrophobic surfaces and propose…”
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