TY - JOUR TI - PAINLEVE ANALYSIS FOR A FORCED KORTEVEG-DE VRIES EQUATION ARISEN IN FLUID DYNAMICS OF INTERNAL SOLITARY WAVES AU - Zhang Sheng AU - Chen Mei-Tong AU - Qian Wei-Yi JN - Thermal Science PY - 2015 VL - 19 IS - 4 SP - 1223 EP - 1223 PT - Article AB - In this paper, Painleve analysis is used to test the Painleve integrability of a forced variable-coefficient extended Korteveg-de Vries equation which can describe the weakly-non-linear long internal solitary waves in the fluid with continuous stratification on density. The obtained results show that the equation is integrable under certain conditions. By virtue of the truncated Painleve expansion, a pair of new exact solutions to the equation is obtained.