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自己写的求解器别人很难debug 有可能是边界条件没处理好
我的算例是火箭发动机内颗粒的燃烧，采用自适应时间步长，在0.0026s时发散，发散时时间步为7e-6s。大概在iter10次之后，Test和Tnew就在1000.1K和999.693K之间来回振荡。我尝试修改了一些参数，发散能够被一定程度延迟，但最终发散时提示的T都是1000K左右。
