摘要
通过CEA软件,研究了Zr粉和Zr H2粉含量、压强及HTPB含量等对含锆或氢化锆推进剂的比冲、密度比冲和燃烧室温度等能量特性的影响。计算结果表明,随着Zr粉、Zr H2粉和Zr/Zr H2混合物含量增加,推进剂比冲下降,但密度比冲呈现先增后减的趋势,含Zr推进剂燃烧室温度先增后减,而含Zr H2推进剂燃烧室温度持续下降;相比于含Al推进剂,密度比冲是含锆或氢化锆推进剂一个显著优势;随着压强增大,能量特性参数均呈现增大趋势;随着HTPB含量减小,推进剂能量特性参数均增大。
CEA software was used to study and analyze the effects of Zr or ZrH_2 powder contents,chamber pressure,and HTPB content on the energy characteristics of the corresponding solid propellants.The energy characteristics include specific impulse,density specific impulse and combustion chamber temperature.The results show that with the increase of Zr(or ZrH_2) powder content,the specific impulse decreases,but the density specific impulse shows a trend of increase first and then decrease.Moreover,the combustion chamber temperature of the Zr-containing propellant was increased first and then decreased,whereas the combustion chamber temperature decreases constantly.Compared to the Al-containing propellants,the density specific impulse of the propellants containing zirconium or its hydride is a significantly advantage.As the pressure increases,the energy characteristic parameters increase.As the HTPB content decreases,the energy characteristics has been improved.
引文
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