利用人工神经网络优良的非线性映射能力 ,设计一个3层前馈式神经网络预测竖直圆形管和环形通道中的过渡沸腾 ,预测结果与实验结果比较 ,符合很好 Using the excellent nonlinear mapping ability of artificial neural network, a 3-layer feedforward neural network is designed to predict the transition boiling in vertical circular tubes and annular channels. The predicted results are in good agreement with the experimental results