Vladimir A. Sabelnikov  , Vladimir V. Vlasenko  , Mikhail A. Ivankin  , Sergey S.Molev  , Alexey A. Nikolayev , Vadim A. Talyzin , Alexander F. Chevagin

DOI Number XXX-YYY-ZZZ

Conference Number HiSST 2018_11101019

The report is devoted to preparation of “fire” experiments in TsAGI T-131 wind tunnel, aimed at creation of an experimental database for validation of physical models and software. Design of model high-speed combustion chamber with optical windows is presented. Simple geometry with symmetric expanding duct without combustion stabilizers is chosen. Flow regime at the entrance: M = 2.5, Тt = 2100 K, Pt = 10 atm. Gaseous fuel is injected from the walls. Preliminary 2D URANS calculations were used for the choice of fuel injection scheme. For the chosen flow regime, stabilization of combustion was not obtained for pure propane fuel. Addition of small portion of hydrogen allowed to stabilize the flame. Stable combustion in asymmetric subsonic mode is obtained at the equivalence ratio ER=0.67 with addition of 15% H2. Supersonic combustion regime is realized at ER=0.33 with addition of 30% H2

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In Categories: Fluid Dynamics, HiSST 2018, Propulsion Systems and Components
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