电阻加热器在超音速燃烧研究中的应用

超音速燃烧室试验设备需要加热空气达到所模拟的飞行状态的总焓，采用电阻加热器可以提供纯净的来流空气。西北工业大学建立了采用连续式电阻加热器的超音速燃烧室直连式试验平台。设备的初步调试结果显示：该电阻加热器最高可将流量0.73kg/s的来流空气加热至1000K，可以利用该平台进行低飞行马赫数的超音速燃烧室试验研究。本文利用该试验平台进行了超音速来流条件下的氢气燃烧试验研究，并在此基础上开展了氢气引燃煤油的点火试验研究。

Resistance Heater Application in Supersonic Combustion Facility

A unique supersonic wind tunnel facility has been built at the Supersonic Combustion Laboratory of Northwestern Polytechnical University to simulate the operation of a scramjet over a range of Mach numbers of 3 to 4.5. The facility provides high stagnation temperature up to 1000K, mass flow rate 0.73kg/s, clean air to the scramjet combustor using resistance heaters. This paper introduces a number of preliminary experiments results to calibrate both the facility and the various components. And the ignition characteristics of the hydrogen and kerosene have been investigated in the supersonic clean airstreams experimental facility with resistance heaters. The present study proves the possibility of igniting the kerosene and maintaining its flame in the pure air airstreams supersonic combustor model designed by ourselves.