TY - JOUR TI - Numerical analysis of forth-order boundary value problems in fluid mechanics and mathematics AU - Hosseinzadeh Elham AU - Barari Amin AU - Fouladi Fama AU - Domairry Davood Ganji JN - Thermal Science PY - 2010 VL - 14 IS - 4 SP - 1101 EP - 1109 PT - Article AB - In this paper He’s variational iteration method is used to solve some examples of linear and non-linear forth-order boundary value problems. The first problem compared with homotopy analysis method solution and the other ones with the exact solution. The results show the high accuracy and speed of convergence of this method. It is found that the variational iteration method is a powerful method for solving of the non-linear equations.