... in the channel. The experiment showed that the presence of bubbles in this frequency range could significantly enhance the fluid mixing in the microfluidic channel, which otherwise would not happen at all without the bubbles. To further understand the bubble generation, the flow field in the microchannel...

..., the other effective properties are computed by the traditional mixing theory. The heat transfer enhancement that derives from the dispersion of nanosized solid particles into the base liquid is calculated for different operating conditions, nanoparticle diameters, and combinations of solid and liquid phases...

...Wonchang Park; Kyungwho Choi; Khalid Lafdi; Choongho Yu Carbon nanotube- or/and graphite-filled polymer composites were synthesized by using simple mixing and drying methods, and their thermal conductivities and structures were characterized by using a steady-state method (ASTM D5470) and scanning...

... is the thermal mixing in the water pool, and the other is the thermo-hydraulically induced mechanical loads acting on the structures of relevant systems. The two concerns are inter-related and can be well described only if the local behavior of the condensing steam jets and the resultant turbulent jet in a pool...

... and instantaneous temperature profiles within the droplet impact region showed the effect of thermal mixing produced by the liquid crowns formed during successive droplet impact events. 23 12 2010 26 05 2011 05 10 2011 05 10 2011 convection drops heat conduction indium compounds...

...Jing He; Anthony M. Jacobi 28 04 2011 28 04 2011 boundary layers channel flow convection design engineering flow instability flow visualisation heat exchangers mixing vortices 2011 American Society of Mechanical Engineers ...

... foam walls, while the remaining air flows tortuously through slots in the structure. Flow mixing, which is absent in the block graphite foam, is observed in the freestream area inside the designed structure. It can be concluded that graphite foams with appropriately designed structures can be applied...

... laminar flow mixing vortices mixed convection in horizontal divergent channel divergent channel flow heated from below secondary flow structure mixing convection heat transfer Mixed convection in channels has received great interest in the past 3 decades for its practical application...

... channel are reported. The objective is to investigate the mixing effect of the particles vis-à-vis the latent heat effect. The particle concentration is kept at 3% in volume. The results, in terms of surface-averaged channel temperature and heat transfer coefficient for different fluid speed and heat-flux...

...Ho Jun Kim; Ali Beskok We present numerical studies of particle dispersion and species mixing in a ζ potential patterned straight microchannel. A continuous flow is generated by superposition of a steady pressure-driven flow and time-periodic electroosmotic flow induced by a streamwise ac electric...

... regime until it reaches a critical Reynolds number of Re c ≈ 126 . As the flow becomes periodic, and then quasiperiodic, the Nusselt number continuously increases with respect to the laminar regime, up to a factor of 4, which represents a significant heat transfer enhancement due to a better flow mixing...

...Patrick E. Hopkins; Pamela M. Norris; Robert J. Stevens; Thomas E. Beechem; Samuel Graham The thermal conductance at solid-solid interfaces is becoming increasingly important in thermal considerations dealing with devices on nanometer length scales. Specifically, interdiffusion or mixing around...

... 02 05 2007 04 02 2008 chaos heat transfer rotational flow eccentric helical annular flow chaotic advection heat transfer mixing One major device used to heat highly viscous fluids is the annular heat exchanger. In this apparatus, fluid flows in the annular region...

... not correspond to the steady state. The present modeling by CML is based on the assumption that the flow boiling is governed by (i) nucleation from cavities on the heated surface and migration of vapor into the core, (ii) forced convection, and (iii) phase change in the fluid bulk and mixing. The stirring action...

...F. J. Diez; L. P. Bernal; G. M. Faeth The self-preserving mixing properties of steady round buoyant turbulent plumes in uniform crossflows were investigated experimentally. The experiments involved salt water sources injected into fresh water crossflows within the windowed test section of a water...

... and is related to the local heat transfer from the plate. The present work suggests that synthetic jets can lead to substantial enhancement of the local heat transfer from heated surfaces by strong mixing that disrupts the surface thermal boundary layer. The dependence of the local heat transfer coefficient...

...Ramin K. Rahmani; Theo G. Keith; Anahita Ayasoufi In chemical processing industries, heating, cooling, and other thermal processing of viscous fluids are an integral part of the unit operations. Static mixers are often used in continuous mixing, heat transfer, and chemical reactions applications...

... exchangers. This is accomplished by the decomposition of complex flow arrangements into simple subexchangers, and then the overall irreversibility trends for the exchangers are explained by irreversibilities produced due to temperature difference and fluid mixing in component subexchangers. It is shown for 1...

... with droplet injection was developed to understand the influence of fluid flow on the mixing, dilution depth, and deposition dimension, while incorporating melting, solidification, and evaporation phenomena. The fluid flow in the melt pool that is driven by thermal capillary convection and an energy balance...

...F. J. Diez; L. P. Bernal; G. M. Faeth The self-preserving mixing properties of steady round nonbuoyant turbulent jets in uniform crossflows were investigated experimentally. The experiments involved steady round nonbuoyant fresh water jet sources injected into uniform and steady fresh water...