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Multiscale Entropy Analysis of Instantaneous Pressure Fluctuation in a Novel Jet Tank.

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Title: Multiscale Entropy Analysis of Instantaneous Pressure Fluctuation in a Novel Jet Tank.
Authors: Meng, H.1, Wang, F.1, Yu, Y.1, Wang, Y.2, Wu, J.1
Source: Chemical Engineering & Technology. Dec2013, Vol. 36 Issue 12, p2137-2147. 11p.
Subjects: Entropy, Guttman scale, Reynolds number, Thermodynamics, Fluctuations (Physics)
Abstract: Sample entropy (SampEn) and intrinsic mode entropy (IMEn) are used to evaluate the fluctuation characteristics in a novel circulating jet tank (CJT). SampEn analysis indicates that the fluctuation complexity of intrinsic mode functions (IMF) reaches a maximum in the first scale and then decreases with the increase of the decomposed scales. When the frequency bands are less than 36.25 Hz, the fluctuation complexity of the IMF gradually increases with increasing Reynolds numbers. The IMEn of IMF with different cumulative scales decreases and then increases with increasing Re. The IMEn of pressure fluctuations is dominated by the functions IMF1 to IMF4. IMF5 to IMF7 start to play a more important role in the fluctuation characteristics for Re > 29 280. [ABSTRACT FROM AUTHOR]
Copyright of Chemical Engineering & Technology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: <searchLink fieldCode="JN" term="%22Chemical+Engineering+%26+Technology%22">Chemical Engineering & Technology</searchLink>. Dec2013, Vol. 36 Issue 12, p2137-2147. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Entropy%22">Entropy</searchLink><br /><searchLink fieldCode="DE" term="%22Guttman+scale%22">Guttman scale</searchLink><br /><searchLink fieldCode="DE" term="%22Reynolds+number%22">Reynolds number</searchLink><br /><searchLink fieldCode="DE" term="%22Thermodynamics%22">Thermodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Fluctuations+%28Physics%29%22">Fluctuations (Physics)</searchLink>
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  Data: Sample entropy (SampEn) and intrinsic mode entropy (IMEn) are used to evaluate the fluctuation characteristics in a novel circulating jet tank (CJT). SampEn analysis indicates that the fluctuation complexity of intrinsic mode functions (IMF) reaches a maximum in the first scale and then decreases with the increase of the decomposed scales. When the frequency bands are less than 36.25 Hz, the fluctuation complexity of the IMF gradually increases with increasing Reynolds numbers. The IMEn of IMF with different cumulative scales decreases and then increases with increasing Re. The IMEn of pressure fluctuations is dominated by the functions IMF1 to IMF4. IMF5 to IMF7 start to play a more important role in the fluctuation characteristics for Re > 29 280. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Chemical Engineering & Technology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – SubjectFull: Reynolds number
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              Text: Dec2013
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