To control foundation seepage and exitgradient, a plastic concrete cut-off wall, a grout curtain, and a set of downstream pressure relief Wells are incorporated in the design.
Thus the difficulties of discontinuous velocity gradient and the stress singularity at the exit point are avoided, and the expense of computation is reduced.
这样回避了速度梯度间断的困难,缓和了出口处应力奇性引起的矛盾,同时又减少了计算量。
3
Results showed that the temperature, temperature gradient and thermal stress at the exit surfaces of the CWS ceramic nozzle were higher than that of other part of the nozzle.