首页> 外文会议>AIAA propulsion and energy forum;AIAA/SAE/ASEE joint propulsion conference >The Role of CFD Modeling in the Development of the Counter Rotating Open Fan Engine
【24h】

The Role of CFD Modeling in the Development of the Counter Rotating Open Fan Engine

机译:CFD建模在反向旋转开式风扇发动机开发中的作用

获取原文

摘要

The criticality of 21st century advantages in energy saving opportunities has led aerospace companies around the world to once again revisit the Open Fan - or more commonly Counter Rotating Open Rotor (CROR) - engine technology in the past several years. The phenomenal advancements in computational fluid dynamics (CFD) technology over the past decade led to an expanded role in the test planning of a 2010 joint Boeing/Rolls-Royce CROR wind tunnel test campaign at the RUAG Aviation LWTE (Low Speed Wind Tunnel Emmen) in Emmen, Switzerland. The success of the validation of the CFD results as a test planning tool, as well as comparing the computation results themselves against wind tunnel measurements, will be examined in this paper. A large number of propeller operating conditions were analyzed with the momentum source rotor model in a steady CFD model prior to the test, greatly assisting in the determination of the run matrix. The test results were then used to evaluate the limitation of the steady CFD method, and to further validate the state-of-art unsteady CFD methodology. The CFD off-body results also helped in the post-test understanding of the wind tunnel results. Improvements to the CFD modeling were in turn made as a result of analysis of the tunnel results. While CFD was used for both isolated and full model cases, this paper will present results using the CFD code OVERFLOW2.1 for the isolated CROR configuration alone.
机译:21世纪在节能方面的优势至关重要,在过去的几年中,世界各地的航空航天公司再次重新审视了Open Fan(或更常见的是反向旋转Open Rotor(CROR))发动机技术。过去十年来,计算流体动力学(CFD)技术的显着进步导致在RUAG Aviation LWTE(低速风洞Emmen)的2010年波音/罗尔斯·罗伊斯CROR联合风洞测试活动的测试计划中发挥了更大的作用在瑞士埃门。本文将检验作为测试计划工具的CFD结果验证的成功以及将计算结果与风洞测量结果进行比较的成功之处。在测试之前,使用稳定的CFD模型中的动量源转子模型分析了许多螺旋桨的工作条件,这极大地帮助确定了运行矩阵。然后,将测试结果用于评估稳定CFD方法的局限性,并进一步验证最新的非稳定CFD方法。 CFD体外结果还有助于对风洞结果进行测试后理解。分析隧道结果后,又对CFD建模进行了改进。虽然CFD用于隔离模型和完整模型两种情况,但本文将仅使用CFD代码OVERFLOW2.1给出隔离CROR配置的结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号