Extraction Method and Evaluation of Shape for Flame Cross Section of Premixed Turbulent Combustion in Constant Volume Combustion Chamber by Image Measurement

Autor:	Hidenori Tasaka, Shigeki Tomomatsu
Rok vydání:	2006
Předmět:	Physics::Fluid Dynamics Premixed flame Cross section (physics) Volume (thermodynamics) Laminar flame speed Chemistry Turbulence kinetic energy Analytical chemistry Mechanics Physics::Chemical Physics Combustion chamber Flame speed Fractal dimension
Zdroj:	Journal of The Japan Institute of Marine Engineering. 41:920-927
ISSN:	1884-3778 1346-1427
DOI:	10.5988/jime.41.6_920
Popis:	To clarify the mechanism of turbulent combustion from a view point of physical data, premixed turbulent combustion in a constant volume combustion chamber was researched. Flame shape was measured as cross sectional image by laser sheet method. The most suitable method for extraction of flame front was examined and flame shape was evaluated as complexity of flame outline by fractal dimension. The results showed that the image processing method using frequency filter was suitable for extraction of correct flame front. Fractal dimension of flame shape was increased by turbulence intensity. Furthermore it was kept constant value at each turbulence intensity during growth of flame.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0f701d5a00f036093cf74f4c9d22f4c0 https://doi.org/10.5988/jime.41.6_920 Zobrazit plný text záznamu