Models of porous flow for convection of the flanks of a ridge give a satisfactory match to patterns of conduction off-axis, but again point to a strong convective flow at the ridge axis itself.

• 渗水流动模型适用于山脊侧部的传导过程，有效的证明了偏轴的传导方式，同时也表明在山脊中轴有强对流传导。