What is the effect of obstacles in microchannel heat sinks?
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The presence of obstacles in microchannel heat sinks has a significant effect on fluid flow and heat transfer. The positioning and shape of the obstacles, as well as the flow parameters, play a crucial role in determining the heat transfer characteristics. The obstacles can cause the formation of vortices and separate vortex regions, leading to enhanced heat transfer and changes in the fluid velocity field . The choice of obstacle placement can result in a reduction in temperature at the microchannel exit, lower skin friction, and a decrease in the Nusselt number . The presence of obstacles can also lead to complex bubble dynamics, including rotation, breakup, and squeeze deformation . Overall, the presence of obstacles in microchannel heat sinks can significantly impact the fluid flow patterns and heat transfer characteristics, making it an important consideration in the design and optimization of such systems.
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| Papers (4) | Insight |
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| The paper discusses the effect of slim obstacles on the flow and heat transfer in microchannels, but it does not specifically mention the effect of obstacles in microchannel heat sinks. | |
| The provided paper discusses the effect of obstacles on the dynamics of flow and enhancement of heat transfer in a micro-channel. | |
5 Citations | The provided paper does not specifically investigate the effect of obstacles in microchannel heat sinks. |
| The paper discusses the impact of obstacles on fluid flow and heat transfer in microchannels. It states that the placement of obstacles significantly affects fluid flow and heat transfer, with obstacles on both sides reducing fluid velocity and cooling the fluid at the microchannel's exit. However, it does not specifically mention the effect of obstacles in microchannel heat sinks. |
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