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Significance of Flow Visualization in Microchannels

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Heat Transfer and Pressure Drop in Flow Boiling in Microchannels

Part of the book series: SpringerBriefs in Applied Sciences and Technology ((BRIEFSTHERMAL))

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Abstract

In order to comprehend the heat transfer and pressure drop characteristics of two phase flow through mini-microchannels, identification of different flow regimes prevailing in two phase flow is considered to be the first and most important step towards the analysis and this is being done using high speed flow visualization techniques. The main objective of the flow visualization study is to provide insight into flow distribution, flow regimes, and transition characteristics in microchannels. The thermohydraulic performance of these reduced size channels are strongly influenced by the number of flow regimes encountered. All those factors that can affect the flow regimes need to be identified for improved design of microchannel heat sinks. The summary of flow patterns recorded during flow visualization is presented in the Table 2.1 below.

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Authors and Affiliations

  1. Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India

    Sujoy Kumar Saha

  2. ENEA Division of Advanced Technologies for Energy and Industry, Rome, Italy

    Gian Piero Celata

Authors
  1. Sujoy Kumar Saha
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  2. Gian Piero Celata
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Saha, S.K., Celata, G.P. (2016). Significance of Flow Visualization in Microchannels. In: Heat Transfer and Pressure Drop in Flow Boiling in Microchannels. SpringerBriefs in Applied Sciences and Technology(). Springer, Cham. https://doi.org/10.1007/978-3-319-20285-3_2

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  • DOI: https://doi.org/10.1007/978-3-319-20285-3_2

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-20284-6

  • Online ISBN: 978-3-319-20285-3

  • eBook Packages: EngineeringEngineering (R0)

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