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A computational study has been carried out to examine the effects of driver gas contamination in the NASA HYPULSE facility at GASL when operating with a detonation driver in reflected-shock tunnel mode. Unlike high-enthalpy shock tunnels which use helium as a driver gas, the driver gas in a detonation driver consists of a mixture of water vapour and argon, which has very different chemical and thermodynamic...
A shock-free expansion tunnel nozzle has been designed for the NASA HYPULSE facility at GASL. The main purpose of the nozzle is to increase the available test core size to accommodate a large-scale model, with the initial design intended for aeroheating studies at re-entry flow conditions. The nozzle was designed to expand the hypervelocity flow at the acceleration tube exit to a larger test core...
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