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Natural advection from a microcantilever heat source
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View: Figures


Image of FIG. 1.
FIG. 1.

Experimental setup showing the microscopic PIV technique and the microcantilever immersed in liquid water. The inset shows a scanning electron microscope image of the microcantilever, with the heater region is marked with a dashed line.

Image of FIG. 2.
FIG. 2.

PIV measurements in the plane of the cantilever heat source when the heater is at 39, 50, 61, or . Arrow orientation indicates flow direction while color indicates measured fluid velocity. These images are looking downward, in the direction of gravity.

Image of FIG. 3.
FIG. 3.

Average fluid velocity in the plane of the microcantilever heat source as a function of heater temperature. The velocity is averaged as the square root of the sum of the squares, either the x-velocity, y-velocity, or total velocity. The x- and y-directions refer to lateral directions in the plane of the cantilever.

Image of FIG. 4.
FIG. 4.

PIV measurements above, below, and in the plane of the cantilever when the heater temperature is . Measurements are shown for in-plane fluid velocity for cross-sections at the cantilever middle and at the cantilever free end. These images are looking at the free end of the cantilever, with the force of gravity acting downward as indicated.


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Scitation: Natural advection from a microcantilever heat source