Well-Posedness for a Class of Thin-Film Equations with General Mobility in the Regime of Partial Wetting

Verfasser / Beitragende:
[Hans Knüpfer]
Ort, Verlag, Jahr:
2015
Enthalten in:
Archive for Rational Mechanics and Analysis, 218/2(2015-11-01), 1083-1130
Format:
Artikel (online)
ID: 605515980
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024 7 0 |a 10.1007/s00205-015-0882-x  |2 doi 
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100 1 |a Knüpfer  |D Hans  |u University of Heidelberg, Im Neuenheimer Feld 294, Heidelberg, Germany  |4 aut 
245 1 0 |a Well-Posedness for a Class of Thin-Film Equations with General Mobility in the Regime of Partial Wetting  |h [Elektronische Daten]  |c [Hans Knüpfer] 
520 3 |a We establish well-posedness for the family of thin-film equations 1 $$\left \{\begin{array}{ll}h_t + (h^n h_{xxx})_x \ = \ 0 \quad \ {\rm in } \ \{ h > 0 \},\\ h \ = \ 0, \ |h_x| \ = \ 1 \quad\quad {\rm on } \ \partial \{ h > 0 \}\end{array}\right. $$ h t + ( h n h x x x ) x = 0 in { h > 0 } , h = 0 , | h x | = 1 on ∂ { h > 0 } with $${n \in (0,\frac {14}{5}) \backslash \{ 1, 2 \}}$$ n ∈ ( 0 , 14 5 ) \ { 1 , 2 } . The model (1) with $${n \in (0,3]}$$ n ∈ ( 0 , 3 ] has been used to describe the evolution of a capillary driven thin liquid droplet on a solid substrate in terms of its height profile $${h \geqq 0}$$ h ≧ 0 . The family of thin-film equations (1) provides a model problem to investigate contact line propagation in fluid dynamics under relaxed slip conditions. The parabolicity of the fourth order parabolic problem degenerates at the free boundary, which leads to a loss of regularity at the moving contact point. Our solutions are regular in terms of the two variables d(x) and d(x)3−n , where d(x) is the distance to the free boundary. The main technical difficulty in the analysis of (1) is related to the loss of regularity at the contact points. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
773 0 |t Archive for Rational Mechanics and Analysis  |d Springer Berlin Heidelberg  |g 218/2(2015-11-01), 1083-1130  |x 0003-9527  |q 218:2<1083  |1 2015  |2 218  |o 205 
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950 |B NATIONALLICENCE  |P 100  |E 1-  |a Knüpfer  |D Hans  |u University of Heidelberg, Im Neuenheimer Feld 294, Heidelberg, Germany  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Archive for Rational Mechanics and Analysis  |d Springer Berlin Heidelberg  |g 218/2(2015-11-01), 1083-1130  |x 0003-9527  |q 218:2<1083  |1 2015  |2 218  |o 205