Effects of varying oblique angles on flow boiling heat transfer and pressure characteristics in oblique-finned microchannels

Law, Matthew; Kanargi, Omer Bugra; Lee, Poh Seng

doi:10.1016/j.ijheatmasstransfer.2016.04.077

Cited by 29 publications

(1 citation statement)

References 24 publications

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“…Law and Lee (2015) examined the pressure instabilities and temperature in straight and oblique-finned microchannels during flow boiling [ 16 ]. Law et al (2016) increased the oblique angles up to 30°–50°, in order to analyze the pressure and heat transfer characteristics in oblique-finned microchannels [ 17 ]. Li et al (2016) worked on curved rectangular microchannels by continuously varying the curvature for novel flow development [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Simulation, Fabrication and Analysis of Silver Based Ascending Sinusoidal Microchannel (ASMC) for Implant of Varicose Veins

et al. 2017

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Bioengineered veins can benefit humans needing bypass surgery, dialysis, and now, in the treatment of varicose veins. The implant of this vein in varicose veins has significant advantages over the conventional treatment methods. Deep vein thrombosis (DVT), vein patch repair, pulmonary embolus, and tissue-damaging problems can be solved with this implant. Here, the authors have proposed biomedical microdevices as an alternative for varicose veins. MATLAB and ANSYS Fluent have been used for simulations of blood flow for bioengineered veins. The silver based microchannel has been fabricated by using a micromachining process. The dimensions of the silver substrates are 51 mm, 25 mm, and 1.1 mm, in length, width, and depth respectively. The dimensions of microchannels grooved in the substrates are 0.9 mm in width and depth. The boundary conditions for pressure and velocity were considered, from 1.0 kPa to 1.50 kPa, and 0.02 m/s to 0.07 m/s, respectively. These are the actual values of pressure and velocity in varicose veins. The flow rate of 5.843 (0.1 nL/s) and velocity of 5.843 cm/s were determined at Reynolds number 164.88 in experimental testing. The graphs and results from simulations and experiments are in close agreement. These microchannels can be inserted into varicose veins as a replacement to maintain the excellent blood flow in human legs.

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Section: Introductionmentioning

confidence: 99%