183 results for heat flow

Controlling Heat Flow with a Magnet
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Controlling Heat Flow with a Magnet

A magnetic field can control the flow of heat across a loop of wire, according to calculations, thanks to interference between quantum waves.   Read More »

The Quantum of Heat Flow
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The Quantum of Heat Flow

The thermal conductance of small wires is measured to take quantized values.   Read More »

Putting a New Spin on Heat Flow
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Putting a New Spin on Heat Flow

Joseph P. Heremans and Stephen R. Boona –  

Researchers demonstrate, for the first time, the spin Peltier effect, in which a spin current in a metal causes heat flow in an adjoining magnet.   Read More »

Heat Flows in a Circle Without Gradients
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Heat Flows in a Circle Without Gradients

A ring of resonators could support a persistent heat flow despite having a uniform temperature, new calculations show.   Read More »

Temperature Oscillation Increases Heat Flow
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Temperature Oscillation Increases Heat Flow

If the temperature gradient in a fluid oscillates, heat flows through it more effectively, according to experiments that may have relevance for climate models.   Read More »

Heat and twist of turbulent flows
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Heat and twist of turbulent flows

Turbulent flow around cylinders can tell us plenty about physics of fluids on earth and in astrophysical systems.   Read More »

Liquid-Metal Flows Show Surprising Heat Transport Behavior
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Liquid-Metal Flows Show Surprising Heat Transport Behavior

Kartik P. Iyer –  

Liquid-metal convection experiments reveal an unexpected transition in the heat transport efficiency of the system at high turbulence.   Read More »

Off the Wall
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Off the Wall

Researchers measured how heat flows within a fluid undergoing rapid convection, a process that occurs in the atmosphere and in stars.   Read More »

Cooking up a Smart Nanofluid
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Cooking up a Smart Nanofluid

Water containing specialized nanoparticles can transport heat at two different rates, depending on the initial configuration of the particles. An improved version of this system could help regulate heat flow in devices.   Read More »

A New Direction for Thermoelectric Cooling
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A New Direction for Thermoelectric Cooling

Materials in which heat flows perpendicular to an electric current could lead to better devices for cooling electronics.   Read More »

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