• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>AIAA aerospace sciences meeting;AIAA SciTech forum >Motive Methods of Heat Flux Measurement in Stagnation Ablation Test
【24h】

Motive Methods of Heat Flux Measurement in Stagnation Ablation Test

机译：滞蚀试验中热通量测量的动机方法

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Thermal protection is an important technology in hypersonic flight reentry, and the ablation protection is one kind of them which is usually used. In ground test the free jet supersonic stagnation ablation is an effective method to evaluate the ablation performance of material. In long time ablation test the measurement precision of heat flux is critical to the material evaluation. Larger error exist in test data which heat flux is measured in fixed type, while the heat flux measured in motive type accord with the mathematic theory which is considered to be an accurate method in stagnation heat flux measurement. In this paper, the method and the equipment of the stagnation ablation test is introduced briefly, also including the theory of heat flux measurement Where after according the contrast to the numerical result, the test data and error received in fixed type measurement is particularly explained. As a result the heat flux measurement in motive type is given. At last through the deep analysis of the test result, the motive type measurement is proved logical. Also the advantage of motive type relative to the fixed type is confirmed.
机译：热保护是高超声速飞行进入中的一项重要技术，消融保护是其中一种常用的技术。在地面试验中，自由射流超声停滞烧蚀是评估材料烧蚀性能的有效方法。在长时间的烧蚀测试中，热通量的测量精度对于材料评估至关重要。固定式热通量的测试数据存在较大误差，而动力式热通量则符合数学理论，被认为是停滞式热通量测量的一种准确方法。本文简要介绍了停滞烧蚀试验的方法和设备，并介绍了热通量的测量原理，并在与数值结果对比之后​​，重点介绍了固定式测量中的试验数据和误差。结果，给出了动机类型的热通量测量。最后通过对测试结果的深入分析，证明了动机类型的测量是合理的。还证实了动力型相对于固定型的优点。

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