In this paper

the Realizable k-ε turbulence model is used to simulate the flow and heat transfer mechanism of a corrugated channel. Considering various Re in turbulence regions

the variation of the averaged characteristic number on wall surface (Nu and f) and the local characteristic number along the wall surfaces of the corrugated channel are investigated. The distribution of internal flow and heat transfer parameters in different transverse sections is analyzed. The results show that when Re<7860

Nu of concave wall is larger; when Re>7860

Nu of convex wall is larger; while f on the convex wall is always larger than that on the concave wall. Nu reached two peak values near entrance and exit of the convex wall

moreover

the maximum value in located near the exit. However

a maximum Nu is located near the entrance and a minimum is located near the exit for the concave wall. As for f

steep rising occurs near the exit of the convex wall

while steep rising appears near the entrance of the concave wall. With the increase of Re

v and TKE at all profiles also increase

while T decrease. In addition

v

T and TKE all suddenly increase near the region of convex wall.