航天推进技术研究院主办
[1]郭涛,许元,张京,等.复杂流场中五孔探针测点加密方法分析[J].火箭推进,2023,49(03):48-55.
GUO Tao,XU Yuan,ZHANG Jing,et al.Analysis on the measurement position refinement method of five-hole probe used in complex flow field[J].Journal of Rocket Propulsion,2023,49(03):48-55.
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GUO Tao,XU Yuan,ZHANG Jing,et al.Analysis on the measurement position refinement method of five-hole probe used in complex flow field[J].Journal of Rocket Propulsion,2023,49(03):48-55.
复杂流场中五孔探针测点加密方法分析
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
49
期数:
2023年03期
页码:
48-55
栏目:
目次
出版日期:
2023-06-25
- Title:
- Analysis on the measurement position refinement method of five-hole probe used in complex flow field
- 文章编号:
- 1672-9374(2023)03-0048-08
- 分类号:
- V211.71
- 文献标志码:
- A
- 摘要:
- 针对五孔探针在测量复杂流场时,因测点数目有限而导致的部分流场信息丢失这一问题,研究了利用已测信息进行测点的二次加密布置,获得更为详细的流场信息的方法,并在叶栅流场中进行了数值模拟验证。结果表明:针对流动特征合理地选择判断参数,可以获得较好的加密预判。涡系影响区可以采用气流角变化作为判断参数,叶栅出口可以采用速度变化作为判断参数; 以判断参数的一阶差分为基础的探针测点加密算法,对流场中的速度剧烈变化区域及涡系影响区进行测点加密布置,可以有效避免流动信息丢失,从而获得更加完整的流场信息。
- Abstract:
- In order to address the problem of the flow field character losing when measuring the complex flow filed with five-holes probe due to the limited number of measurement points, a refinement method to obtain the detailed flow field was investigated by using the measured flow fields information to refine the measurement positions. The method was also verified by numerical simulations in a cascade flow field. The results show that the effective refine decision can be obtained by selecting reasonable parameters for flow characteristics. The change of flow angle may be used as the judgement parameter in the vortex-influenced area, and the change of velocity can be regarded as the judgement parameter near the exit of the cascade between the pressure surface and the suction surface. For the complex flow fields, the refinement method of probe position based on the first-order difference of judgement parameters can obtain the complete flow field information by refining the measuring points in the area of dramatic velocity change and affected by vortex system.
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备注/Memo
收稿日期:2022-05-24; 修回日期:2022-06-30
基金项目:国家科技重大专项(J2019-II-0022-0043)
作者简介:郭涛(1976—),男,博士,高级工程师,研究领域为动力系统高温部件的传热与冷却技术。
更新日期/Last Update:
1900-01-01