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Effect of curvature distribution on customized-planform waverider

机译：曲率分布对定制 - 平面波浪者的影响

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In the customized-planform waverider derived from the osculating-cone method, when the design curve Inlet Capture Curve (ICC) is selected or determined, its curvature distribution is possibly irregular, leading to a failure of waverider generation. Moreover, in the osculating-cone method, the curvature distribution of ICC is required to be continuous, restricting the design space significantly. In this paper, the effect of modifying and altering the curvature distribution of ICC on the customized-planform waverider is investigated. Test configurations with different curvature distributions of ICC are generated in the two types of customized-planform waveriders and their aerodynamic performances are calculated using CFD techniques. The results indicate that altering the curvature distribution does not break the 'wave-riding' performance of high lift-to-drag ratio for the customized-planform waverider significantly. Therefore, in the customized-planform waverider, infeasible curvature distribution of ICC can be modified locally to make the waverider generation work. Meanwhile, altering the curvature distribution of ICC provides an approach to increase the volume of a waverider. Moreover, in the osculating-cone waverider, the ICC curve can be selected over a wider range, even including the curves with non-continuous second-order derivatives, enlarging its design space dramatically. (C) 2020 Elsevier Masson SAS. All rights reserved.
机译：In the customized-planform waverider derived from the osculating-cone method, when the design curve Inlet Capture Curve (ICC) is selected or determined, its curvature distribution is possibly irregular, leading to a failure of waverider generation.此外，在主管锥方法中，ICC的曲率分布是连续的，显着限制设计空间。在本文中，研究了改变和改变ICC在定制 - 平面波浪者上的曲率分布的效果。具有不同ICC的不同曲率分布的测试配置在两种类型的定制 - 平面型波浪机中产生，并且使用CFD技术计算它们的空气动力学性能。结果表明，改变曲率分布不会明显地破坏定制 - 平面形式WIVERIDER的高升力比率的“波浪骑行”性能。因此，在定制 - 平面形式WAVERIDER中，ICC的不可行曲率分布可以在本地修改以使WIVERIDER GENAING GOOR作用作用。同时，改变ICC的曲率分布提供了增加WIVERIDER的体积的方法。此外，在主管锥Waverider中，可以在更宽范围内选择ICC曲线，甚至包括具有非连续二阶导数的曲线，显着扩大其设计空间。 （c）2020 Elsevier Masson SAS。版权所有。

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