The Investigation Of Heat-transfer Property Of Super-critical Waterwall Tubes

Combining the simplified momentum equation, energy equation and state equation of compressible sticky fluid, this paper establishes the numerical model to study the heat-transfer property of the substances in super-critical waterwall tubes with the newest international water and steam standard-IAPWS-97. This paper adopts multi-grid and the optimal selection of the relaxation gene, so it quickens the convergent speed of iteration. The result shows the inherence rules and degree of heat-transfer property are influenced by the substance distributions when condition is changed. Furthermore, comparing experiment data and actual method, we prove the numerical model is more precise.