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国际能源材料和化学驱动期刊
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN 打印: 2150-766X
ISSN 在线: 2150-7678

国际能源材料和化学驱动期刊

DOI: 10.1615/IntJEnergeticMaterialsChemProp.2013005756
pages 385-410

ANALYSIS OF QUASI-STEADY AND TRANSIENT BURNING OF HYBRID FUELS IN A LABORATORY-SCALE BURNER BY AN OPTICAL TECHNIQUE

Christian Paravan
Politecnico di Milano, Aerospace Science and Technology Department, Space Propulsion Laboratory (SPLab), 34, via La Masa, I-20156 Milan, Italy
M. Manzoni
Space Propulsion Laboratory, Department of Aerospace Science and Technology, Politecnico di Milano, 34, via LaMasa, 20156 Milan, Italy
G. Rambaldi
Space Propulsion Laboratory, Department of Aerospace Science and Technology, Politecnico di Milano, 34, via LaMasa, 20156 Milan, Italy
Luigi T. De Luca
Space Propulsion Laboratory (SPLab), Department of Aerospace Science and Technology, Politecnico di Milano, I-20156 Milan, Italy

ABSTRACT

Burning of hydroxyl-terminated polybutadiene in gaseous oxygen is investigated using a time-resolved optical technique. Combustion tests are performed in a two-dimensional radial micro-burner under quasi-steady and forced transient operating conditions. Under quasi-steady operating conditions, the high initial regression rate at the beginning of the run is followed by a smooth monotonic decrease as combustion proceeds. This behavior is captured by a purposely developed regression rate simulation model. Under forced transient operating conditions, for oxidizer mass flow throttling down, solid fuel exhibits a non-monotonic regression rate response. Earlier phases of the transient are characterized by a noticeable regression rate decrease followed by faint oscillations.


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