<p>In this paper, we consider the following incompressible logistic-type Keller-Segel coupled with Navier-Stokes system with flux limitation in <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\mathbb {R}^{2}:\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msup> <mrow> <mi mathvariant="double-struck">R</mi> </mrow> <mn>2</mn> </msup> <mo>:</mo> </mrow> </math></EquationSource> </InlineEquation><Equation ID="Equ84"> <EquationSource Format="TEX">\(\begin{aligned}\,\, \left\{ \begin{aligned}&amp;\rho _{t}+u\cdot \nabla \rho =\delta \rho -\nabla \cdot ((\rho f(|\nabla c|^{2})\nabla c)+\gamma \rho -\mu \rho ^2 ,\\&amp;c_{t}+u\cdot \nabla c=\Delta c-c+\rho ,\\&amp;u_{t}+u\cdot \nabla u+\nabla P=\Delta u-\rho \nabla \phi ,\\&amp;\nabla \cdot u=0. \end{aligned} \right. \end{aligned}\)</EquationSource> <EquationSource Format="MATHML"><math display="block"> <mrow> <mtable> <mtr> <mtd columnalign="right"> <mrow> <mspace width="0.166667em" /> <mspace width="0.166667em" /> <mfenced open="{"> <mrow> <mtable> <mtr> <mtd /> <mtd columnalign="left"> <mrow> <msub> <mi>ρ</mi> <mi>t</mi> </msub> <mo>+</mo> <mi>u</mi> <mo>·</mo> <mi mathvariant="normal">∇</mi> <mi>ρ</mi> <mo>=</mo> <mi>δ</mi> <mi>ρ</mi> <mo>-</mo> <mi mathvariant="normal">∇</mi> <mo>·</mo> <msup> <mrow> <mo stretchy="false">(</mo> <mo stretchy="false">(</mo> <mi>ρ</mi> <mi>f</mi> <mo stretchy="false">(</mo> <mo stretchy="false">|</mo> <mi mathvariant="normal">∇</mi> <mi>c</mi> <mo stretchy="false">|</mo> </mrow> <mn>2</mn> </msup> <mrow> <mo stretchy="false">)</mo> <mi mathvariant="normal">∇</mi> <mi>c</mi> <mo stretchy="false">)</mo> </mrow> <mo>+</mo> <mi>γ</mi> <mi>ρ</mi> <mo>-</mo> <mi>μ</mi> <msup> <mi>ρ</mi> <mn>2</mn> </msup> <mo>,</mo> </mrow> </mtd> </mtr> <mtr> <mtd columnalign="right"> <mrow /> </mtd> <mtd columnalign="left"> <mrow> <msub> <mi>c</mi> <mi>t</mi> </msub> <mo>+</mo> <mi>u</mi> <mo>·</mo> <mi mathvariant="normal">∇</mi> <mi>c</mi> <mo>=</mo> <mi mathvariant="normal">Δ</mi> <mi>c</mi> <mo>-</mo> <mi>c</mi> <mo>+</mo> <mi>ρ</mi> <mo>,</mo> </mrow> </mtd> </mtr> <mtr> <mtd columnalign="right"> <mrow /> </mtd> <mtd columnalign="left"> <mrow> <msub> <mi>u</mi> <mi>t</mi> </msub> <mo>+</mo> <mi>u</mi> <mo>·</mo> <mi mathvariant="normal">∇</mi> <mi>u</mi> <mo>+</mo> <mi mathvariant="normal">∇</mi> <mi>P</mi> <mo>=</mo> <mi mathvariant="normal">Δ</mi> <mi>u</mi> <mo>-</mo> <mi>ρ</mi> <mi mathvariant="normal">∇</mi> <mi>ϕ</mi> <mo>,</mo> </mrow> </mtd> </mtr> <mtr> <mtd columnalign="right"> <mrow /> </mtd> <mtd columnalign="left"> <mrow> <mi mathvariant="normal">∇</mi> <mo>·</mo> <mi>u</mi> <mo>=</mo> <mn>0</mn> <mo>.</mo> </mrow> </mtd> </mtr> </mtable> </mrow> </mfenced> </mrow> </mtd> </mtr> </mtable> </mrow> </math></EquationSource> </Equation>By virtue of the Fourier localization technique, we establish the global well-posedness for the above system with <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(f(\zeta )= K_{f}\cdot (1+\zeta )^{-\frac{n}{2}}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>f</mi> <mrow> <mo stretchy="false">(</mo> <mi>ζ</mi> <mo stretchy="false">)</mo> </mrow> <mo>=</mo> <msub> <mi>K</mi> <mi>f</mi> </msub> <mo>·</mo> <msup> <mrow> <mo stretchy="false">(</mo> <mn>1</mn> <mo>+</mo> <mi>ζ</mi> <mo stretchy="false">)</mo> </mrow> <mrow> <mo>-</mo> <mfrac> <mi>n</mi> <mn>2</mn> </mfrac> </mrow> </msup> </mrow> </math></EquationSource> </InlineEquation> and <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(n&gt;0\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>n</mi> <mo>&gt;</mo> <mn>0</mn> </mrow> </math></EquationSource> </InlineEquation>.</p>

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Asymptotic stabilization for the 2D logistic-type Keller-Segel-Navier-Stokes system with flux limitation

  • Zhongjiang Zhou,
  • Qian Zhang

摘要

In this paper, we consider the following incompressible logistic-type Keller-Segel coupled with Navier-Stokes system with flux limitation in \(\mathbb {R}^{2}:\) R 2 : \(\begin{aligned}\,\, \left\{ \begin{aligned}&\rho _{t}+u\cdot \nabla \rho =\delta \rho -\nabla \cdot ((\rho f(|\nabla c|^{2})\nabla c)+\gamma \rho -\mu \rho ^2 ,\\&c_{t}+u\cdot \nabla c=\Delta c-c+\rho ,\\&u_{t}+u\cdot \nabla u+\nabla P=\Delta u-\rho \nabla \phi ,\\&\nabla \cdot u=0. \end{aligned} \right. \end{aligned}\) ρ t + u · ρ = δ ρ - · ( ( ρ f ( | c | 2 ) c ) + γ ρ - μ ρ 2 , c t + u · c = Δ c - c + ρ , u t + u · u + P = Δ u - ρ ϕ , · u = 0 . By virtue of the Fourier localization technique, we establish the global well-posedness for the above system with \(f(\zeta )= K_{f}\cdot (1+\zeta )^{-\frac{n}{2}}\) f ( ζ ) = K f · ( 1 + ζ ) - n 2 and \(n>0\) n > 0 .