...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Heat Transfer Engineering >Thermal Analysis of a Jet Deflector Subjected to Liquid Engine Jet Exhaust in a Static Test
【24h】

Thermal Analysis of a Jet Deflector Subjected to Liquid Engine Jet Exhaust in a Static Test

机译：静态试验中受液体发动机射流排放的射流偏转器的热分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The survivability of a jet deflector encountering severe heating conditions due to the direct impingement of exhaust gases from a liquid engine is analyzed. Using engineering methods the thermal environments and temperature history are estimated. The cooling of the jet deflector using a water stream into the exhaust stream through spray nozzles located upstream from the deflector to reduce the exhaust temperature is considered. Since the major source of heating of the jet deflector is by convection, the convective heating due to jet impingement is evaluated. A flow field from the exhaust of the liquid engine is generated using a finite-volume-based Navier-Stokes computational fluid dynamics solver. For evaluating convective heat transfer coefficient, engineering methods are used based on the flow-field data generated. The theoretical flow-field data generated do not account for jet water mixing. To account for the water jet effect, an energy balance method is used to estimate the jet temperature and a one-dimensional thermal response analysis is carried out using in-house design code. The computed temperature data are compared with the measured temperature data and the survivability of the jet deflector is assured.
机译：分析了由于来自液体发动机的废气的直接撞击而遭受严重加热条件的射流偏转器的生存能力。使用工程方法估算热环境和温度历史记录。考虑使用水流通过位于偏转器上游的喷嘴冷却水进入排气流，从而降低排气温度。由于射流偏转器的主要加热源是对流，因此可以评估由于射流撞击而产生的对流加热。使用基于有限体积的Navier-Stokes计算流体动力学求解器生成来自液体发动机排气的流场。为了评估对流换热系数，基于生成的流场数据使用工程方法。产生的理论流场数据不考虑喷射水混合。为了考虑水射流的影响，使用能量平衡方法估算射流温度，并使用内部设计规范进行一维热响应分析。将计算出的温度数据与测得的温度数据进行比较，可以确保射流偏转器的使用寿命。

著录项

  • 来源
    《Heat Transfer Engineering》 |2015年第4期|346-351|共6页
  • 作者

    PARAMESWARAN ANOOP; CHAKKEDATH UNNIKRISHNAN; BALACHANDRAN SUNDAR; M. JOSEPH CHACKO;

  • 作者单位

    Aerodynamic Heating and Thermal Analysis Division, Vikram Sarabhai Space Centre, Kerala, India,AHTD, AERO, VSSC/ISRO, Veli, Trivandrum 695022, Kerala, India;

    Aerodynamics R&D Division, Vikram Sarabhai Space Centre, Kerala, India;

    Aerodynamic Heating and Thermal Analysis Division, Vikram Sarabhai Space Centre, Kerala, India;

    Aerodynamic Heating and Thermal Analysis Division, Vikram Sarabhai Space Centre, Kerala, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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