But in the shallow water area seepage phenomenon in a porous seabed has a certain effect on wave propagation.

This paper presents a numerical model for simulating nonlinear wave interaction with submerged porous breakwater.

It is helpful in the computation of large scale mathematical model with distributed parameters in concern with transport problems across the wall of the network of permeable tubes.

Return to the nature of city: Also on the layout of streets in permeable city;

The author takes the streets of one of the oldest traditional urban community of Hankow----Hualou Street as research object, through some effective methods such as literature reading, field study, graphic drawing to study the permeable characteristic of its street form and the impact to the community vigor.