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As a fundamental study of natural air cooling of IC boards, natural convection heat transfer to air from an array of vertical parallel plates with protruding and discrete heat sources is studied theor...etically and experimentally. Two-dimensional Navier-Stokes and energy equations including heat conduction through the plates and heat sources are numerically solved under the conditions of modified Grashof number Gr*=2.3×10^3～8.8×10^5 and aspect ratio L=l/h=8～30. The numerical solutions agree well with the experimental values except for the large aspect ratio L=30 where the three-dimensional effects become significant. A correlation expression for the local Nusselt number is proposed which can predict the protrusion surface temperature within 20% error. Also is discussed the estimation method of the maximum temperature in the protrusion.続きを見る
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Mendeley出力
KJ00004507706