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Visualization of fluctuation of radiant flow by entropy maps
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SYSNO ASEP 0369867 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Visualization of fluctuation of radiant flow by entropy maps Author(s) Chumak, Oleksiy (UFP-V) RID
Hrabovský, Milan (UFP-V) RIDSource Title Proceedings of the 7th Mediterranean Combustion Symposium(MCS-7 ). - Napoli : Associazione Sezione Italiana del Combustion Institute, 2011 - ISBN 978-88-88104-12-6 Pages s. 18-24 Number of pages 7 s. Publication form CD-ROM - CD-ROM Action Seventh Mediterranean Combustion Symposium Event date 11.09.2011-15.09.2011 VEvent location Chia Laguna, Cagliari, Sardinia Country IT - Italy Event type WRD Language eng - English Country IT - Italy Keywords Flame stability ; flame fluctuations ; statistical processing ; entropy maps Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects TA01010300 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) CEZ AV0Z20430508 - UFP-V (2005-2011) Annotation A digital camera coupled with computer has great potential in analysis of flame and discharges structures. This work analyzes an approach to visualization of dynamic radiant flow. Mapping of brightness uncertainty values is used to show regions of different fluctuation intensity of the flow. Entropy as described by information theory was used as relevant parameter for uncertainty value. By mathematical procedure relative parameter was derived based on entropy. As result effect of optic sensitivity or imperfections of experimental set-up were significantly suppressed. Example of its utilization for plasma jet investigation is demonstrated. The method combines clearness, robustness and flexibility and can be effective tool for the basic characterization of the flows. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2012
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