Fan, XiaotingWang, Wei2023-04-172023-04-172022-04-21Fan, X., & Wang, W. (2022). Initial layer associated with Boussinesq systems for thermosolutal convection. <i>Electronic Journal of Differential Equations, 2022</i>(33), pp. 1-18.1072-6691https://hdl.handle.net/10877/16592This article concerns the behavior of the initial layer appearing at large Prandtl number in Boussinesq equations with the ill initial data. By using the asymptotic expansion methods of singular perturbation theory, we establish an approximate solution and the rate of convergence as the Prandtl number tends to infinity. Our results improve the existing ones concerning thermosolutal convection.Text18 pages1 file (.pdf)enAttribution 4.0 InternationalBoussinesq systemThermosolutal convectionPrandtl numberPerturbation theoryAsymptotic expansionArticle