IMA Journal of Applied Mathematics Advance Access published online on December 4, 2007
IMA Journal of Applied Mathematics, doi:10.1093/imamat/hxm062
Experimental evidence of non-unique solutions to a steady non-linear coating flow
Department of Chemical Engineering and School of Mathematics, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK

School of Mathematics, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
Department of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
Email: s.p.decent{at}bham.ac.uk
Received on September 13, 2007; Accepted on October 30, 2007
Experimental observations of a coating flow are described, including evidence of a new qualitative feature, namely, that the steady stable flow field is not always unique for certain fixed values of the physical parameters. Since the mathematical modelling of these processes is the subject of some controversy, this potentially provides a qualitative test of competing proposed models.