Experimental Study on a Two-phase Pulse Detonation Rocket Engine at the Frequency of 35Hz

摘要

A pulse detonation rocket engine (PDRE) model with solenoid valves was designed whose diameter and length are 30mm and 850mm respectively, The model was performed with liquid C10H21 as fuel, compressed oxygen as oxidizer and nitrogen as purge gas, and was ignited by a spark with low energy. Multi-cycle detonation test showed the operation frequency of the PDRE model can reach up to 35 Hz, which as we know is so far the maximum operation frequency of PDRE with solenoid valves and liquid fuel. The peak value of detonation wave pressure is more than 3.4 MPa and the time-averaged thrust of PDRE is 43.9N while the operation frequency is 35Hz.