A mathematical model was proposed to describe the heat transfer in nucleate pool boiling.The model addressed the three-dimensional conduction heat transfer process within the problem domain comprised of the heating wall

and the effect of bubbles or sites was represented through boundary conditions.Numerical simulations were performed and a excellent agreement between the available experiment data and numerical simulating results were gained.By numerical simulation

the predicting methods of the bubble influence area factor and the flow strength parameter were obtained.In addition

the nonlinear characteristics of wall temperature variation and bubble wait time were identified.