An experimental study of a new hybrid jet impingement/micro-channel cooling scheme

Abstract

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Three-dimensional flow effects on forced convection heat transfer in a channel with stepwise-varying width

“…1) comprises a series of rectangular channels with a stepwise width reduction occurring midway along their length. This design concept was first implemented by Barrau et al [17] in a jet impingement cooling device. In this concept, the total length of the heat sink is divided into distinct consecutive sections, whereby the downstream section has twice the number of channels of the upstream one.…”

A liquid-based system for CPU cooling implementing a jet array impingement waterblock and a tube array remote heat exchanger

“…4 [4]. A possible solution to this is two-phase convective flow which should ideally be more isothermal.…”

Effect of secondary flows due to buoyancy and contraction on heat transfer in a two-section plate-fin heat sink

“…1a) has overall dimensions of (L x W) 500mm x 60mm and employs an array of rectangular channels with a step-change to their hydraulic diameter at the heat-sink mid-length. The design is based on a concept first introduced by Barrau et al [20]. Such a concept, obtained, for instance, by the doubling of the number of channels in the downstream section, offers additional heat-transfer surfaces and disrupts the development of the cooling-fluid thermal boundary layer, which would lead to steep temperature gradients.…”