Abstract:The adaptive growth method for heat transfer structures which emulates the natural branch systems provides simpler and more effective results. However, parallel channels can not be avoided in the method under the complex boundary conditions. To solve this disadvantage, a new strategy was suggested, which includes two sequential steps. In the first step, the method was applied with the sensitivity filtering technique and the result of the step was adopted as an initial design for the second step. In the second step, the method was applied without the sensitivity filtering technique. The research shows that the topology configurations achieved by the suggested strategy are clear with few parallel channels and the heat performances are improved. What's more, the results obtained with the density gradient filtering technique are the best.