TY - JOUR
T1 - Equilibrating Effect of Maxwell-Type Boundary Condition in Highly Rarefied Gas
AU - Kuo, Hung Wen
N1 - Funding Information:
Part of this work was written during the stay at Department of Mathematics, Stanford University. The author would like to thank Professor Tai-Ping Liu for his kind hospitality. This work was supported by NSC Grant 102-2115-M-006-018-MY2 and MOST Grant 104-2115-M-006-010-MY2.
Publisher Copyright:
© 2015, Springer Science+Business Media New York.
PY - 2015/11/1
Y1 - 2015/11/1
N2 - We study the equilibrating effects of the boundary and intermolecular collision in the kinetic theory for rarefied gases. We consider the Maxwell-type boundary condition, which has weaker equilibrating effect than the commonly studied diffuse reflection boundary condition. The gas region is the spherical domain in (Formula presented.)=1,2. First, without the equilibrating effect of the collision, we obtain the algebraic convergence rates to the steady state of free molecular flow with variable boundary temperature. The convergence behavior has intricate dependence on the accommodation coefficient of the Maxwell-type boundary condition. Then we couple the boundary effect with the intermolecular collision and study their interaction. We are able to construct the steady state solutions of the full Boltzmann equation for large Knudsen numbers and small boundary temperature variation. We also establish the nonlinear stability with exponential rate of the stationary Boltzmann solutions. Our analysis is based on the explicit formulations of the boundary condition for symmetric domains.
AB - We study the equilibrating effects of the boundary and intermolecular collision in the kinetic theory for rarefied gases. We consider the Maxwell-type boundary condition, which has weaker equilibrating effect than the commonly studied diffuse reflection boundary condition. The gas region is the spherical domain in (Formula presented.)=1,2. First, without the equilibrating effect of the collision, we obtain the algebraic convergence rates to the steady state of free molecular flow with variable boundary temperature. The convergence behavior has intricate dependence on the accommodation coefficient of the Maxwell-type boundary condition. Then we couple the boundary effect with the intermolecular collision and study their interaction. We are able to construct the steady state solutions of the full Boltzmann equation for large Knudsen numbers and small boundary temperature variation. We also establish the nonlinear stability with exponential rate of the stationary Boltzmann solutions. Our analysis is based on the explicit formulations of the boundary condition for symmetric domains.
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U2 - 10.1007/s10955-015-1355-1
DO - 10.1007/s10955-015-1355-1
M3 - Article
AN - SCOPUS:84943661559
VL - 161
SP - 743
EP - 800
JO - Journal of Statistical Physics
JF - Journal of Statistical Physics
SN - 0022-4715
IS - 3
ER -