【摘要】 本文设计了在非均匀流场中,能同时测量其速度分布、浓度分布和温度分布的取样感头,建立了相应的测试系统,分析讨论了该系统的测量精度及其影响因素。在常温和高温气流作用下,测量了非均匀流场中燃油浓度分布、速度分布及温度分布。燃油浓度在常温时误差在±10％以内,高温时误差在±6％以内。更多还原

【Abstract】 This paper designs a sampling-probe which can measure the distribution of the velocity, the fuel concentration and the temperature at the same time in a non-uniform flowfield.and a test system correspondingly. The measuring error and other factors of the system are discussed. The fuel concentration distribution,the velocity distribution and the temperature distribution are measured in the non-uniform flowfield of low and high temperatures. The fuel concentration measuring errors are ±10% at low temperature and ±6% at high temperature.更多还原