Infrared micro-particle image velocimetry measurements and predictions of flow distribution in a microchannel heat sink

Infrared Micro-Particle Image Velocimetry Measurements and Predictions of Flow Distribution in a Microchannel Heat Sink

The flow distribution in a silicon microchannel heat sink was studied using Infrared MicroParticle Image Velocimetry (IR PIV). The microchannel test piece consisted of seventy-six 110 m wide  371 m deep channels etched into a silicon substrate. Inlet and outlet manifolds, also etched into the substrate, were fed by 1.4 mm inner-diameter tubing ports. An image processing algorithm was develo...

Microchannel Flow Measurement Using Micro Particle Image Velocimetry

Since microfabrication techniques are typically planar processes, microchannel flows typically have significant predevelopment due to the upstream reservoir having the same height as the microchannel. The main concerns of the current study are categorized into finding the effects of typical microchannel geometry on the velocity entrance length in the laminar flow regime and providing the turbul...

Infrared Micro-Particle Image Velocimetry Measurement in Silicon-Based Microdevices

Flow Measurements in a Blood-Perfused Collagen Vessel Using X-Ray Micro-Particle Image Velocimetry

Blood-perfused tissue models are joining the emerging field of tumor engineering because they provide new avenues for modulation of the tumor microenvironment and preclinical evaluation of the therapeutic potential of new treatments. The characterization of fluid flow parameters in such in-vitro perfused tissue models is a critical step towards better understanding and manipulating the tumor mi...

Study on Thermal and Hydrodynamic Indexes of a Nanofluid Flow in a Micro Heat Sink

The paper numerically presents laminar forced convection of a nanofluid flowing in a duct at microscale. Results were compared with both analytical and experimental data and observed good concordance with previous studies available in the literature. Influences of Brinkman and Reynolds number on thermal and hydrodynamic indexes have been investigated. For a given nanofluid, no change in efficie...