Abstract
We propose a new concept of weak solutions to the multicomponent reactive flows driven by large boundary data. When the Gibbs’ equation incorporates the species mass fractions, we establish the global-in-time existence of weak solutions for any finite energy initial data. Moreover, if the classical solutions exist, the weak solutions coincide with them in the same time interval.
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Notes
We denote \(\textbf{Y}:=(Y_1,...,Y_n)\).
We deonte \([\textbf{u}_b\cdot \textbf{n}]^+=\max \{\textbf{u}_b\cdot \textbf{n}, 0\} [\textbf{u}_b\cdot \textbf{n}]^-=\min \{\textbf{u}_b\cdot \textbf{n}, 0\}\).
We denote \({\tilde{\textbf{Y}}}:=({\tilde{Y}}_1,...,{\tilde{Y}}_n)\), \({\tilde{e}}_M:=e_M({\tilde{\varrho }},{\tilde{\vartheta }})\), \({\tilde{e}}_R:=e_R({\tilde{\varrho }},{\tilde{\vartheta }})\), etc.
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Acknowledgements
The research of B.-K. Huang is supported by the grant from National Natural Science Foundation of China (grant No.11901148), the Fundamental Research Funds for the Central Universities (grant No.JZ2022HGTB0257), and the China Scholarship Council (grant No.202106695016). This work was done when B.- K. Huang visited the Institute of Mathematics of the Czech Academy of Sciences, and he would like to thank Prof. Eduard Feireisl for fruitful discussions.
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Huang, B. On the Weak Solutions to the Multicomponent Reactive Flows Driven by Non-conservative Boundary Conditions. J. Math. Fluid Mech. 26, 19 (2024). https://doi.org/10.1007/s00021-024-00856-5
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DOI: https://doi.org/10.1007/s00021-024-00856-5