Nanofluid Flow in Microchannels

Flow of coolants in micro-cOTiduits MicroChannel heat sinks (MCHS) Micro-heat exchangers Miniature heat-removal devices Nanofluid flow in microchannels... [Pg.2159]

Lch = 365 pm, were examined. The particle volume fraction (p of the nanofluid was in the range of 0.3-2 %. They postulated for laminar nanofluid flow in microchannels ... [Pg.2171]

Chein and Huang [15] analyzed the silicon microchan-nel heat sink performance using Cu — H2O nanofluid. Two specific geometries, one with W h = Wfm = 100 xm and Lcii = 300 ttm, the other with = Wf = 57 xm and Lgjj = 365 ttm were examined. The particle volume fraction

[Pg.1323]

Microfluidics is the manipulation of fluids in channels, with at least two dimensions at the micrometer or submicrometer scale. This is a core technology in a number of miniaturized systems developed for chemical, biological, and medical applications. Both gases and liquids are used in micro-/nanofluidic applications, ° and generally, low-Reynolds-number hydrodynamics is relevant to bioMEMS applications. Typical Reynolds numbers for biofluids flowing in microchannels with linear velocity up to 10 cm/s are less than Therefore, viscous forces dominate the response and the flow remains laminar. [Pg.166]

Colin S (2005) Rarefaction and compressibility effects on steady and transient gas flow in microchannels. Microfluid Nanofluid l(3) 268-279... [Pg.693]

Hu Y, Xuan X, Werner C, Li D (2007) Electroosmotic flow in microchannels with prismatic elcunents. Midofluid Nanofluid 3 151... [Pg.1159]

Thus, ongoing research is focusing on the thermal and fluid properties of nanofluids as well as such mixmre flow in microchannels. How to optimize the cooling capabilities of nanofluids in microchannel heat sinks will be a challenging task. Alternative approaches include fluid jet impingement and two-phase, i.e., liquid-vapor, flow with boiling heat transfer. [Pg.2173]

Yan DG, Yang C, Huang XY (2007) Effect of finite reservoir size on electroosmotic flow in microchannels. Microfluid Nanofluid 3(4) 333-340... [Pg.274]

Abadie, T., Aubin, J., Legendre, D., Xuereb, C. (2012). Hydrodynamics of gas-liquid Taylor flow in rectangular microchannels. Microfluidics and Nanofluidics, 12, 355-369. [Pg.43]

Kuang C, Zhao W, Yang F, Wang G (2009) Measuring flow velocity distribution in microchannels using molecular tracers. Microfluid Nanofluid 7(4) 509-517... [Pg.1100]

In order to provide some physical insight into the dynamics of microchannel heat sinks (MCHS), steady laminar water flow in a smooth single trapezoidal microchannel is discussed and compared with measured data sets. Then the effects of nanofluids on augmented MCHS heat transfer are introduced, employing very simple correlations for the enhanced thermal conductivities of the mixtures. The fluid flow and heat transfer simulations have been carried out with the commercial... [Pg.2161]

Nanofluid Flow with Heat Transfer In order to investigate the heat transfer characteristics of a nanofluid in the trapezoidal microchannel, we employed a CuO-water combination as the working fluid. Clearly, the thermal... [Pg.2162]

As mentioned, nanofluids exhibit unusual thermal and fluid properties, which in conjunction with microchannel systems provide enhanced heat transfer performance in heat transfer and fluid flow. For example. Wen and Ding [23] reported a considerable convective heat transfer augmentation when employing 7-AI2O3 nanoparticles in water flow in a copper tube based on their experimental results. The test Y-AI2O3 nanoparticles had a size range of 27-56 nm. Figure 9 depicts the local heat transfer coefficient vs. axial distance from the entrance of the test section, which clearly shows that the enhancement of the local heat transfer coefficient... [Pg.2170]

Fig. 10 Nanofluid flow applications in microchannel heat sinks ...

Song H, Wang Y, Pant K (2013) Scaling law for cross-stream diffusion in microchannels under combined electroosmotic and pressure driven flow. Microfluidics and nanofluidics, 14(1-2), 371-382... [Pg.2283]

Venditti R, Xuan XC, Li DQ (2006) Experimental characterization of the temperature dependence of zeta potential and its effect on electroosmotic flow velocity in microchannels. Microfluid Nanofluid 2 493—499... [Pg.896]

Microscale Cooling Devices, Figure 9 Nanofluid flow application in microchannel heat sink axial profile of local heat transfer coefficient (Re = 1050 50) [23]... [Pg.1322]

Microscale Cooling Devices, Rgure 10 Nanolluid flow applications in microchannel heat sinks (a) comparison of model predictions with experimental thermal conductivity data for copper oxide-in-water and aluminum-in-water nanofluids [27] (b) thermal resistances of microchannel heat sinks with water-based nanolluids containing copper and diamond particles [26]... [Pg.1323]

Zimmerman WB, Rees JM, Craven TJ (2006) Rheometry of non-Newtonian electrokinetic flow in a microchannel T-junction. In Microfluidics and Nanofluidics. DOT 10.1007/s 10404-006-0089-4... [Pg.1480]

J. Berthier, K.A. Brakke and E. Berthier, A general condition for spontaneous capillary flow in uniform cross-section microchannels. Microfluid Nanofluid. 16, 779-785 (2014). [Pg.43]

Mukherjee A, Kandlikar SG (2005) Numerical simulation of growth of a vapor bubble during flow boiling of water in a microchannel. Microfluid Nanofluid 1(2) 137-145... [Pg.222]

Zhu J, Canto RC, Keten G, Vedantam P, Tzeng TJ, Xuan X (2011) Continuous flow separation of particles and cells in a serpentine microchannel via curvature-induced dielectrophoresis. Microfluid Nanofluidics 11 743-752... [Pg.520]

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