[1] [1] Bers, L., Existence and uniqueness of a subsonic flow past a given profile,Comm. Pure Appl. Math.,7, 1954, 441–504.

[2] [2] Bers, L., Mathematical Aspects of Subsonic and Transonic Gas Dynamics, Surv. Appl. Math.,3, John Wiley & Sons, Inc., New York, 1958.

[3] [3] Chen, C., Du, L. L., Xie, C. J. and Xin, Z. P., Two-dimensional subsonic Euler flows past a wall or a symmetrib body,Arch. Ration. Mech. Anal.,221(2), 2016, 559–602.

[4] [4] Chen, C. and Xie, C. J., Three-dimensional steady subsonic Euler flows in bounded nozzles,J. Differential Equations,256(11), 2014, 3684–3708.

[5] [5] Chen, G. Q., Huang, F. M. and Wang, T. Y., Subsonic-sonic limit of approximate solutions to multidimensional steady Euler equations,Arch. Ration. Mech. Anal.,219(2), 2016, 719–740.

[6] [6] Chen, J., Subsonic flows for the full Euler equations in half plane,J. Hyperbolic Differ. Equ.,6(2), 2009, 207–228.

[7] [7] Courant, R. and Friedrichs, K. O., Supersonic Flow and Shock Waves, Interscience Publishers, Inc., New York, 1948.

[8] [8] Deng, X. M., Wang, T. Y. and Xiang, W., Three-dimensional full Euler flows with nontrivial swirl in axisymmetric nozzles,SIAM J. Math. Anal.,50(3), 2018, 2740–2772.

[9] [9] Dong, G. C. and Ou, B., Subsonic flows around a body in space,Comm. Partial Differential Equations,18(1–2), 1993, 355–379.

[10] [10] Du, L. L. and Duan, B., Subsonic Euler flows with large vorticity through an infinitely long axisymmetric nozzle,J. Math. Fluid Mech.,18(3), 2016, 5110–530.

[11] [11] Du, L. L., Weng, S. K. and Xin, Z. P., Subsonic irrotational flows in a finitely long nozzle with variable end pressure,Comm. Partial Differential Equations,39(4), 2014, 666–695.

[12] [12] Du, L. L., Xie, C. J. and Xin, Z. P., Steady subsonic ideal flows through an infinitely long nozzle with large vorticity,Comm. Math. Phys.,328(1), 2014, 327–354.

[13] [13] Du, L. L., Xin, Z. P. and Yan, W., Subsonic flows in a multi-dimensional nozzle,Arch. Ration. Mech. Anal.,201(3), 2011, 965–1012.

[14] [14] Fang, B. X. and Gao, X., On admissible positions of transonic shocks for steady Euler flows in a 3-D axisymmetric cylindrical nozzle,J. Differential Equations,288, 2021, 62–117.

[15] [15] Finn, R. and Gilbarg, D., Asymptotic behavior and uniqueness of plane subsonic flows,Comm. Pure Appl. Math.,10, 1957, 23–63.

[16] [16] Finn, R. and Gilbarg, D., Three-dimensional subsonic flows, and asymptotic estimates for elliptic partial differential equations,Acta Math.,98, 1957, 265–296.

[17] [17] Gao, J. L. and Yuan, H. R., Stability of stationary subsonic compressible Euler flows with mass-additions in two-dimensional straight ducts,J. Differential Equations,334, 2022, 87–156.

[18] [18] Giaquinta, M. and Martinazzi, L., An Introduction to the Regularity Theory for Elliptic Systems, Harmonic Maps and Minimal Graphs,11, Edizioni della Normale, Pisa, 2012.

[19] [19] Gilbarg, D. and Tudinger, N. S., Elliptic Partial Differential Equations of Second Order, Springer-Verlag, Berlin, 2001.

[20] [20] Li, J. and Wang, Y. N., Structural stability of steady subsonic Euler flows in 2D finitely long nozzles with variable end pressure,J. Differential Equations,413, 2014, 70–109.

[21] [21] Li, J., Xin, Z. P. and Yin, H. C., On transonic shocks in a nozzle with variable end pressures,Comm. Math. Phys.,291(1), 2009, 111–150.

[22] [22] Li, J., Xin, Z. P. and Yin, H. C., On transonic shocks in a conic divergent nozzle with axi-symmetric exit pressures,J. Differential Equations,248(3), 2010, 423–469.

[23] [23] Li, J., Xin, Z. P. and Yin, H. C., Transonic shocks for the full compressible Euler system in a general two-dimensional de Laval nozzle,Arch. Ration. Mech. Anal.,207(2), 2013, 533–581.

[24] [24] Park, Y., 3-D axisymmetric transonic shock solutions of the full Euler system in divergent nozzles,Arch. Ration. Mech. Anal.,240(1), 2021, 467–463.

[25] [25] Shiffman, M., On the existence of subsonic flows of a compressible fluid,J. Rational Mech. Anal.,1, 1952, 605–652.

[26] [26] Weng, S. K., Subsonic Euler flows in a divergent nozzle,Sci. China Math.,57(1), 2014, 97–110.

[27] [27] Weng, S. K., A new formulation for the 3-D Euler equations with an application to subsonic flows in a cylinder,Indiana Univ. Math. J.,64(6), 2015, 1609–1642.

[28] [28] Weng, S. K. and Yao, C. K., Subsonic Euler flows in a three-dimensional finitely long cylinder with arbitrary cross section,Discrete Contin. Dyn. Syst. Ser. B,29(11), 2024, 4624–4645.

[29] [29] Xie, C. J. and Xin, Z. P., Global subsonic and subsonic-sonic flows through infinitely long nozzles,Indiana Univ. Math. J.,56(6), 2007, 2991–3023.

[30] [30] Xie, C. J. and Xin, Z. P., Existence of global steady subsonic Euler flows through infinitely long nozzles,SIAM J. Math. Anal.,42(2), 2010, 751–784.

[31] [31] Xie, C. J. and Xin, Z. P., Global subsonic and subsonic-sonic flows through infinitely long axially symmetric nozzles,J. Differential Equations,248(11), 2010, 2657–2683.

[32] [32] Xu, G. and Yin, H. C., On the existence and stability of a global subsonic flow in a 3D infinitely long cylindrical nozzle,Chinese Ann. Math. Ser. B,31(2), 2010, 163–190.