Boundary layer separation of 2-D incompressible Dirichlet flows

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March 2015, 20(2): 675-682. doi: 10.3934/dcdsb.2015.20.675

Boundary layer separation of 2-D incompressible Dirichlet flows

Quan Wang ^1, , Hong Luo ^2, and Tian Ma ^2,

1.	Department of Mathematics, Sichuan University, Chengdu, Sichuan 610064, China
2.	College of Mathematics and Software Science, Sichuan Normal University, Chengdu,Sichuan 610066, China, China

Received March 2014 Revised June 2014 Published January 2015

Abstract
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In this paper, the solutions of Navier-Stokes equations governing 2-D incompressible flows with the Dirichlet boundary condition are analyzed. We derive a condition for boundary layer separation, and the condition is determined by initial values and external forces. More importantly, the condition can predict when and where the boundary layer separation occurs directly. In addition, we also get an algebraic equation for the separation point and the separation time. The algebraic equation can tell us where the boundary layer separation does not occur in a short period of time. The main technical tool is the geometric theory of incompressible flows developed by T. Ma and S. Wang in [15].

Keywords: Boundary layer separation, Dirichlet boundary condition., predicable condition, Navier-Stokes Equations, 2-D incompressible fluid flows.

Mathematics Subject Classification: Primary: 35Q30, 35Q35, 76D10, 76M9.

Citation: Quan Wang, Hong Luo, Tian Ma. Boundary layer separation of 2-D incompressible Dirichlet flows. Discrete & Continuous Dynamical Systems - B, 2015, 20 (2) : 675-682. doi: 10.3934/dcdsb.2015.20.675

References:

[1]	P. Blanchonette and M. A. Page, Boundary-Layer separation in the two-layer flow past a cylinder in a rotating frame,, Theoret. Comput. Fluid Dynamics, 11 (1998), 95. Google Scholar
[2]	Chorin, J. Alexandre and J. E. Marsden, A mathematical Introduction to Fluid Mechanics,, Third edition. Texts in Applied Mathematics, (1993). doi: 10.1007/978-1-4612-0883-9. Google Scholar
[3]	W. E and B. Engquist, Blow up of solutions of the unsteady Prandtl's equation,, Commun. Pure Appl. Math, 50 (1997), 1287. doi: 10.1002/(SICI)1097-0312(199712)50:12<1287::AID-CPA4>3.0.CO;2-4. Google Scholar
[4]	M. Ghil, T. Ma and S. Wang, Structural bifurcation of 2-D incompressible flows,, Indiana Univ. Math. J, 50 (2001), 159. doi: 10.1512/iumj.2001.50.2183. Google Scholar
[5]	M. Ghil, J. Liu, C. Wang and S. Wang, Boundary-layer separation and adverse pressure gradient for 2-D viscous incompressible flow,, Physica D, 197 (2004), 149. doi: 10.1016/j.physd.2004.06.012. Google Scholar
[6]	M. Ghil and T. Ma and S. Wang, Structural bifurcation of 2-D incompressible flows with Dirichlet boundary conditions: Applications to boundary-layer separation,, SIAM J. Applied Math, 65 (2005), 1576. doi: 10.1137/S0036139903438818. Google Scholar
[7]	H. Luo, Q. Wang and T. Ma, A predicable condition for boundary layer separation of 2-D incompressible fluid flows,, Nonlinear Analysis: Real World Applications, 22 (2015), 336. doi: 10.1016/j.nonrwa.2014.09.007. Google Scholar
[8]	O. B. Larin and V. A. Levin, Boundary layer separation in a laminar supersonic flow with energy supply source,, Technical Physics Letters, 34 (2008), 181. doi: 10.1134/S1063785008030012. Google Scholar
[9]	O. B. Larin and V. A. Levin, Effect of energy supply to a gas on laminar boundary layer separation,, Journal of Applied Mechanics and Technical Physics, 51 (2010), 11. doi: 10.1007/s10808-010-0003-4. Google Scholar
[10]	J. Liu and Z. Xin, Boundary layer behavior in the fluid-dynamic limit for a nonlinear model Boltzmann equation,, Arch. Rat. Mech. Anal, 135 (1996), 61. doi: 10.1007/BF02198435. Google Scholar
[11]	T. Ma and S. Wang, Rigorous characterization of boundary layer separations,, Proc. of the Second MIT Conference on Computational Fluid and Solid Mechanics, (2003), 1008. doi: 10.1016/B978-008044046-0/50246-3. Google Scholar
[12]	T. Ma and S. Wang, Interior structural bifurcation and separation of $2-D$ incompressible flows,, J. Math. Phy, 45 (2004), 1762. doi: 10.1063/1.1689005. Google Scholar
[13]	T. Ma and S. Wang, Asymptotic structure for solutions of the Navier-Stokes equations,, Discrete and Continuous Dynamical Systems, 11 (2004), 189. doi: 10.3934/dcds.2004.11.189. Google Scholar
[14]	T. Ma and S. Wang, Boundary Layer Separation and Structural Bifurcation for 2-D Incompressible Fluid Flows,, Discrete and Continuous Dynamical Systems, 10 (2004), 459. doi: 10.3934/dcds.2004.10.459. Google Scholar
[15]	T. Ma and S. Wang, Geometric Theory of Incompressible Flows with Applications to Fluid Dynamics,, Mathematical Surveys and Monographs, (2005). doi: 10.1090/surv/119. Google Scholar
[16]	T. Ma and S. Wang, Boundary layer and interior separations in the Taylor-Couette-Poiseuille flow,, Journal of Mathematical Physics, 50 (2009), 1. doi: 10.1063/1.3093268. Google Scholar
[17]	O. A. Oleinik, On the mathematical theory of boundary layer for unsteady flow of incompressible fluid,, J. Appl. Math. Mech, 30 (1966), 951. doi: 10.1016/0021-8928(66)90001-3. Google Scholar
[18]	O. A. Oleinik and V. N. Samokhin, Mathematical Models in Boundary Layer Theory,, Chapman and Hall/CRC, (1999). Google Scholar
[19]	L. Prandtl, On the motion of fluids with very little friction,, in Verhandlungen des dritten internationalen Mathematiker-Konggresses, (1905), 484. Google Scholar
[20]	H. Schlichting, Boundary Layer Theory,, eighth ed., (2000). doi: 10.1007/978-3-642-85829-1. Google Scholar
[21]	F.T. Smith and S.N. Brown, Boundary-Layer Separation,, Proceedings of the IUTAM Symposium London, (1986). doi: 10.1007/978-3-642-83000-6. Google Scholar
[22]	Quan. Wang, Stability and bifurcation of a viscous incompressible plasma fluid contained between two concentric rotating cylinders,, Discrete and Continuous Dynamical Systems-B, 19 (2014), 543. doi: 10.3934/dcdsb.2014.19.543. Google Scholar

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References:

[1]	P. Blanchonette and M. A. Page, Boundary-Layer separation in the two-layer flow past a cylinder in a rotating frame,, Theoret. Comput. Fluid Dynamics, 11 (1998), 95. Google Scholar
[2]	Chorin, J. Alexandre and J. E. Marsden, A mathematical Introduction to Fluid Mechanics,, Third edition. Texts in Applied Mathematics, (1993). doi: 10.1007/978-1-4612-0883-9. Google Scholar
[3]	W. E and B. Engquist, Blow up of solutions of the unsteady Prandtl's equation,, Commun. Pure Appl. Math, 50 (1997), 1287. doi: 10.1002/(SICI)1097-0312(199712)50:12<1287::AID-CPA4>3.0.CO;2-4. Google Scholar
[4]	M. Ghil, T. Ma and S. Wang, Structural bifurcation of 2-D incompressible flows,, Indiana Univ. Math. J, 50 (2001), 159. doi: 10.1512/iumj.2001.50.2183. Google Scholar
[5]	M. Ghil, J. Liu, C. Wang and S. Wang, Boundary-layer separation and adverse pressure gradient for 2-D viscous incompressible flow,, Physica D, 197 (2004), 149. doi: 10.1016/j.physd.2004.06.012. Google Scholar
[6]	M. Ghil and T. Ma and S. Wang, Structural bifurcation of 2-D incompressible flows with Dirichlet boundary conditions: Applications to boundary-layer separation,, SIAM J. Applied Math, 65 (2005), 1576. doi: 10.1137/S0036139903438818. Google Scholar
[7]	H. Luo, Q. Wang and T. Ma, A predicable condition for boundary layer separation of 2-D incompressible fluid flows,, Nonlinear Analysis: Real World Applications, 22 (2015), 336. doi: 10.1016/j.nonrwa.2014.09.007. Google Scholar
[8]	O. B. Larin and V. A. Levin, Boundary layer separation in a laminar supersonic flow with energy supply source,, Technical Physics Letters, 34 (2008), 181. doi: 10.1134/S1063785008030012. Google Scholar
[9]	O. B. Larin and V. A. Levin, Effect of energy supply to a gas on laminar boundary layer separation,, Journal of Applied Mechanics and Technical Physics, 51 (2010), 11. doi: 10.1007/s10808-010-0003-4. Google Scholar
[10]	J. Liu and Z. Xin, Boundary layer behavior in the fluid-dynamic limit for a nonlinear model Boltzmann equation,, Arch. Rat. Mech. Anal, 135 (1996), 61. doi: 10.1007/BF02198435. Google Scholar
[11]	T. Ma and S. Wang, Rigorous characterization of boundary layer separations,, Proc. of the Second MIT Conference on Computational Fluid and Solid Mechanics, (2003), 1008. doi: 10.1016/B978-008044046-0/50246-3. Google Scholar
[12]	T. Ma and S. Wang, Interior structural bifurcation and separation of $2-D$ incompressible flows,, J. Math. Phy, 45 (2004), 1762. doi: 10.1063/1.1689005. Google Scholar
[13]	T. Ma and S. Wang, Asymptotic structure for solutions of the Navier-Stokes equations,, Discrete and Continuous Dynamical Systems, 11 (2004), 189. doi: 10.3934/dcds.2004.11.189. Google Scholar
[14]	T. Ma and S. Wang, Boundary Layer Separation and Structural Bifurcation for 2-D Incompressible Fluid Flows,, Discrete and Continuous Dynamical Systems, 10 (2004), 459. doi: 10.3934/dcds.2004.10.459. Google Scholar
[15]	T. Ma and S. Wang, Geometric Theory of Incompressible Flows with Applications to Fluid Dynamics,, Mathematical Surveys and Monographs, (2005). doi: 10.1090/surv/119. Google Scholar
[16]	T. Ma and S. Wang, Boundary layer and interior separations in the Taylor-Couette-Poiseuille flow,, Journal of Mathematical Physics, 50 (2009), 1. doi: 10.1063/1.3093268. Google Scholar
[17]	O. A. Oleinik, On the mathematical theory of boundary layer for unsteady flow of incompressible fluid,, J. Appl. Math. Mech, 30 (1966), 951. doi: 10.1016/0021-8928(66)90001-3. Google Scholar
[18]	O. A. Oleinik and V. N. Samokhin, Mathematical Models in Boundary Layer Theory,, Chapman and Hall/CRC, (1999). Google Scholar
[19]	L. Prandtl, On the motion of fluids with very little friction,, in Verhandlungen des dritten internationalen Mathematiker-Konggresses, (1905), 484. Google Scholar
[20]	H. Schlichting, Boundary Layer Theory,, eighth ed., (2000). doi: 10.1007/978-3-642-85829-1. Google Scholar
[21]	F.T. Smith and S.N. Brown, Boundary-Layer Separation,, Proceedings of the IUTAM Symposium London, (1986). doi: 10.1007/978-3-642-83000-6. Google Scholar
[22]	Quan. Wang, Stability and bifurcation of a viscous incompressible plasma fluid contained between two concentric rotating cylinders,, Discrete and Continuous Dynamical Systems-B, 19 (2014), 543. doi: 10.3934/dcdsb.2014.19.543. Google Scholar

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