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Viscous Scaling Phenomena in Miniature Centrifugal Flow Cooling Fans: Theory, Experiments and Correlation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper analyzes the scale effects that occur in miniature centrifugal flow fans and investigates the possibility of optimizing blade geometry so that performance can be enhanced. Such fans ...
Predicting Entropy Generation Rates in Transitional Boundary Layers Based on Intermittency
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Prediction of thermodynamic loss in transitional boundary layers is typically based on time-averaged data only. This approach effectively ignores the intermittent nature of the transition region. ...
Heat Transfer From Novel Target Surface Structures to a 3×3 Array of Normally Impinging Water Jets
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Impinging jet arrays provide a means to achieve high heat transfer coefficients and are used in a wide variety of engineering applications such as electronics cooling. The objective of this ...
Entropy Generation in the Viscous Parts of Turbulent Boundary Layers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The local (pointwise) entropy generation rate per unit volume S‴ is a key to improving many energy processes and applications. Consequently, in the present study, the objectives are to examine ...
Entropy Generation in a Boundary Layer Transitioning Under the Influence of Freestream Turbulence
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The objective of the present research is to develop new fundamental knowledge of the entropy generation process in laminar flow with significant fluctuations (called pre-transition) and during ...
Heat Transfer From Novel Target Surface Structures to a Normally Impinging, Submerged and Confined Water Jet
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Contemporary electronic systems generate high component-level heat fluxes. Impingement cooling is an effective way to induce high heat transfer coefficients in order to meet thermal constraints. ...
Conditionally-Sampled Turbulent and Nonturbulent Measurements of Entropy Generation Rate in the Transition Region of Boundary Layers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Conditionally-sampled boundary layer data for an accelerating transitional boundary layer have been analyzed to calculate the entropy generation rate in the transition region. By weighing the ...