通过求解Taylor-Maccoll方程结合特征线法，快速生成了具有不同物面边界的直激波内锥流场，实现了使用内锥流场的定平面形状乘波体设计。比较不同边界和压力分布的直激波流场性质，并以上反翼双后掠外形为基准平面形状设计定平面形状乘波体，分析不同内锥流场对定平面形状乘波体性能的影响。结果表明，当直激波内锥流场物面边界不同时，得到的定平面形状乘波体均具有较高的升阻比，而且激波位置非常接近，表现出良好的乘波特性；当物面边界由上扬变为下降时，即沿物面压力由升高变为降低，下表面的压缩性也逐渐降低，但总压恢复系数基本不变；另外，基准流场的物面边界越趋近于直线，基准流场以及所生成乘波体下表面的流场均匀性越好。

The straight-shock internal flows with various wall boundaries are generated by solving the Taylor-Maccoll equation and combining the method of characteristics. Employing the geometric relation in the osculating-cone method, the planform-customized waverider design is developed using the straight-shock internal conical flows. The different wall boundaries of the internal flows correspond with the different pressure distributions along the walls. When the wall boundaries varied from the elevated to descend profile, the pressure along the wall changed from the increasing to decreasing distribution. Taking the 3D leading edge of one double swept waverider with wing dihedral as the baseline planform shape, the planform-customized waveriders using the internal conical flows with different boundaries are designed. Then the effect of the internal flows on the waverider performance was analyzed. Results shows that the planform-customized waveriders generated from the internal flows with different wall boundaries featured high lift-to-drag ratio. The shock wave positions in their flow fields were nearly identical, indicating promising wave-riding perfor-mance. When the wall boundaries of the basic internal flows varied from elevated to descend profile along the axial coordinate, the pressure of the lower surface transitions from increasing to decreasing. The compression ability under the lower surface also decreased, but the total pressure recovery coefficients remains similar. In addition, as the wall boundary approached a straight line more closely, the flow uniformity under the lower surface of waveriders are better, just like that of the basic internal flows.