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Dittus Boelter coefficient M range

  1. May 26, 2017 #1
    Hello, I am doing Dittus Boelter correlation for Nusselt number accroding to my measured data. Coefficient (or constant) M that is related to Re has (in my case) value of 1.12. Is it physically possible to get value greater than 1? In my previous research, I've only met with a value of less than one, so I am little bit confused. Thanks for answer.
  2. jcsd
  3. May 27, 2017 #2
    In my judgment, it is conceptually possible to get an exponent greater than 1. In practice, as you know, there is abundant data that indicates that it is about 0.8.
  4. May 29, 2017 #3
    Thank you for your answer, I really appreciate it. Could you recommend some suitable literature for me to learn more about it?
  5. May 29, 2017 #4
    Bird, Stewart, and Lightfoot, Transport Phenomena.
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