Advances in Heat Transfer by Thomas F. Irvine, James P. Hartnett, Young I. Cho, George A.

By Thomas F. Irvine, James P. Hartnett, Young I. Cho, George A. Greene

Advances in warmth move fills the data hole among on a regular basis scheduled journals and university-level textbooks by way of supplying in-depth assessment articles over a broader scope than in journals or texts. The articles, which function a extensive overview for specialists within the box, can be of serious curiosity to non-specialists who have to hold up to date with the result of the newest research. This serial is crucial examining for all mechanical, chemical and business engineers operating within the box of warmth move, graduate colleges or industry.Provides an outline of evaluate articles on themes of present interestBridges the distance among educational researchers and practitioners in industryA long-running and prestigious sequence

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Hence, heating is another way to increase the acoustic streaming, other than increasing the amplitude of wall vibration. To a closed system, the wall vibration has mixed effects on the heat transfer along the walls. First, the mean velocity induced by acoustic streaming can enhance the heat transfer. Second, the acoustic power input to the system adds a new heat load to the cooling plate. Therefore, acoustic streaming is not always conducive to cooling down the hot source. Finally, the effect of partial wall vibration is studied.

008 m/s. In the last three cases considered (Case E-1, E-2, E-3), the dimensionless enclosure height was chosen as y0/ = 50. 2 mm as maximum wall dis­ placements for Case E-1, E-2 and E-3, respectively. Figure 12 compares the temporal variation of the pressure for these three cases at the mid-point of 28 B. FAROUK ET AL. 00505 t (s) FIG. 12. 2 mm) [75]. the left wall at the end of the 100th vibration cycle. 2 mm (Case E-3) wall displacements. In addition, with higher wall displacement value, the pressure waveform is much sharper and distorted.

The pressure wave was not very symmetrical because the boundary condi­ tions and geometries of the two endplates are not the same. Figure 19 shows the root-mean-square pressure values along the axial direction for three different power values with the frequency held at 1062 Hz. While the root-mean-square pressure values decrease with decreasing loudspeaker power, the positions of the nodes and antinodes remain the same. The instantaneous pressure fluctuation on the node (z = 3L/4) is shown in Fig.

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