摘要
The front dynamics driven by a convection field in a model of FitzHugh-Nagumo type is studied both analytieMly and numerically. Saddle-node bifurcation induced by the convection field is found by using a singular perturbation analysis of front solutions. Convection field accelerates the B1och front propagating opposite the direction of convection field, but inhibits the Bloch front propagating along the direction of convection field. In addition convection field drives Ising front to travel opposite the direction of convection field.
基金
Supported by the National Natural Science Foundation of China Grant Nos.11205044,11375051
the Natural Science Foundation of Hebei Province,China under Grant Nos.A2011201006,A2012201015
the Research Foundation of Education Bureau of Hebei Province,China under Grant No.Y2012009
the Science Foundation of Hebei University
