Eulerian thermo-mechanical simulations of heterogeneous solid propellants using an approximate projection method
Eulerian thermo-mechanical simulations of heterogeneous solid propellants using an approximate projection method
复制标题
使用近似投影法对异质固体推进剂进行欧拉热机械模拟
DOI:
10.1016/j.combustflame.2020.05.023
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发表时间:
2020
影响因子:
4.4
通讯作者:
Jackson, Thomas L.
中科院分区:
文献类型:
--
作者:
Kumar, Tadbhagya;Rycroft, Chris H.;Jackson, Thomas L.
We present a mathematical model that describes thermo-mechanical deformations and thermal gradients on the unsteady burning of a heterogeneous solid propellant. A scaling study shows that the deformations in solid at combustion timescales can be treated as quasi-static. The resulting thermo-mechanical formulation is formulated on a Cartesian grid and makes use of a weak form of Chorin-type projection method to deal with large difference in shear modulus of constituent materials. A one-dimensional verification study is carried out by comparing numerical simulations with those of an analytical model. In addition, convergence studies for a two-dimensional propellant sandwich configuration are presented for the stress, velocity, and reference map components. Finally, simulations are carried out for a two-dimensional random propellant pack and the time-averaged burn rate and strains are reported.
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影响因子:
4.1
作者:
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通讯作者:
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影响因子:
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DOI:
--
发表时间:
2001
期刊:
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DOI:
--
发表时间:
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期刊:
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