High speed photographic observation of flow patterns during flow boiling in single rectangular minichannel
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Date
2003-07Author
Balasubramanian, Prabhu
Kandlikar, Satish
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Show full item recordAbstract
The present study extends the range of flow patterns
observed during boiling of water in a single minichannel of
height 197 mm and width 1054 mm. The calculated hydraulic
diameter of the channel is 333 mm. High-speed photography is
used to obtain video images of the flow field. The top covers of
the channels are made of Lexan to permit visual observation,
while the minichannel is machined in a copper block heated
with cartridge heaters . The flow patterns are studied as a
function of mass flux, heat flux, and location along the flow
channel length. The results provide important information
regarding the boiling behavior in a single channel.
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