Freezing characteristics of laminar flow water in the solidification heat collecting exchanger

Based on the quasisteady approximate method, analyses the freezing problem of  water in laminar flow regime in the exchanger tube with constant wall temperature. Discusses the freezing characteristics of water at 0~4 ℃ in different conditions such as different Reynolds numbers, tube diameters and wall temperatures. The results indicate that the influence of these parameters on dimensionless thickness of ice layer is inapparent at the beginning of freezing and gradually enhances with time.