| Popis: |
Results of numerical and physical experiments on achieving high efficiency for high power COIL a presented. Different schemes of singlet oxygen and molecular iodine mixing were analyzed. Analyses were made by means three dimensional simulation of processes in COIL nozzle. Model of COIL active medium based on numerical solution of three dimensional non stationary Navier-Stokes equations is developed. For description of gas-cycle chemical processes the scheme consisting of 34 reactions and 12 components of gaseous mixture was used. On the basis of results of numerical simulation of processes in active medium practical recommendations on updating of high-power COIL nozzle bank were made. Practical implementation of proposed recommendations on experimental setup allowed to increase the small signal gain in 1,6 times, achieve chemical efficiency of 31,5% under output power of 14 kW. |
