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Numerical simulation for mechanism of multi-phase detonation of aluminized gasoline and air


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Numerical simulation for mechanism of multi-phase detonation of aluminized gasoline and air
Hu HongboWeng Chunsheng
National Key Lab of Transient Physics,NUST,Nanjing 210094,China
detonation multi-phase flow aluminum aluminized gasoline and air combustion conservation element and solution element numerical calculation
In order to understand the mechanism of multi-phase detonation of aluminized gasoline and air,a mathematical physics model of flow and combustion with gas,liquid and solid is established,and solved numerically by conservation element and solution element(CE/SE)method.According to the calculated results,the deflagration to detonation progress of aluminized gasoline and air is analyzed,and the influences of initial liquid radius and aluminum concentration on detonation parameters are compared.The results show that the initial liquid radius is smaller,the distance of stable detonation formation is shorter,and the aluminum volume fraction accumulated is greater.The detonation wave can't propagate self-sustaining if the initial liquid is greater than about 100 μm.The distance of stable detonation formation and volume fraction accumulated during detonation process increase with the increase of the aluminum concentration.The detonation pressure,temperature and velocity increase with the increase of the aluminum concentration,but the amplifications are decreased.The research results have some significant references for the characteristic study and application exploration of liquid fuels containing aluminum.


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Last Update: 2014-08-31