Correlation of turbulent burning velocities of ethanol–air, measured in a fan-stirred bomb up to 1.2 MPa

摘要: Abstract The turbulent burning velocity is defined by the mass rate of and this also requires that associated flame surface area should be defined. Previous measurements radial distribution mean reaction progress variable in explosion flames provide a basis for definitions such areas velocities. These inter-relationships. general, are different from those burner flames. Burning velocities presented spherical surface, at which unburned gas inside it equal to burned outside it. can readily transformed based on other surfaces. five explosions, all under same conditions. cover wide range equivalence ratios, pressures rms ethanol–air mixtures. Two techniques employed, one high speed schlieren images, pressure transducer measurements. There good agreement between measured two techniques. All measurement generalised plots normalised effective as function Karlovitz stretch factor strain Markstein numbers. For given value decrease number increases velocity. Comparisons made with findings workers.