飞机发动机的自动化设计和传热优化：通用电气案例研究
技术
- 传感器 - 电表
适用功能
- 产品研发
- 质量保证
用例
- 网状网络
- 视觉质量检测
服务
- 测试与认证
关于客户
本案例研究的客户是通用电气 (GE)，这是一家跨国集团，业务涉及航空、电力、可再生能源、数字工业和医疗保健等多个领域。在这个特殊案例中，重点是通用电气的航空部门，特别是通用电气飞机发动机公司。 GE飞机发动机公司是为商用、军用、公务和通用航空飞机提供喷气式和涡轮螺旋桨发动机、零部件、集成数字、航空电子设备、电力和机械系统的领先供应商。该公司正在寻求开发先进的燃烧器设计技术，以满足积极的新产品引入 (NPI) 分析要求。
挑战
飞机发动机燃烧室的设计是一个复杂的多学科过程，涉及航空 CFD、燃烧、传热 CFD、动力学、热学、机械和寿命预测。 GE 全球研究中心与 GE 飞机发动机公司合作，负责开发先进的燃烧室设计技术，以满足严格的新产品引入 (NPI) 分析要求。此过程中的一个重大挑战是以自动方式生成高质量网格。网格质量在自动化设计过程中起着至关重要的作用，影响分析的准确性。此外，网格划分过程需要可编写脚本，无需人工干预。完整的燃烧室扇形模型需要全六边形网格，以确保分析准确性。
解决方案
为了应对这一挑战，完整的燃烧室扇区模型分为三个主要部分：内衬、外衬和圆顶组件。每个组件进一步分为一组子组件。工程解决方案涉及使用 prt2tetin 脚本生成 tetin 文件、生成六角形重放文件以及将网格集成到组件或完整燃烧室模型中。此过程生成了完整燃烧室扇区模型的全六角形网格。该解决方案中使用的技术是 ANSYS® CFD。该解决方案还具有 Unigraphics 的简化界面，可轻松实现精确的几何转换、用于高质量网格的新颖且独特的块策略，以及用于自动网格生成的出色脚本功能。
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