【摘要】 对100 kW微型燃气轮机分体式回热器燃气腔的流场做了数值模拟,分析了燃气入口管道采用不同的锥度角α及不同的伸入腔内长度L时对燃气腔流场的影响,分析表明,α=5°及L=370 mm时,整个流程的阻力损失及各燃气出口速度均匀度综合评定为最优。更多还原

【Abstract】 A numerical simulation was conducted for the gas-cavity flow field of the splitbody type recuperator of a 100 kW micro gas turbine along with an analysis of the impact on the gas cavity by such factors as the use of different cone angles α at the gas inlet piping and different lengths L of protrusion into the cavity. The results of the simulation indicate that when α = 5° and L = 370 mm,the resistance losses of the flow path as a whole and the uniformity of velocities at various gas outlets have been comprehensively evaluated as having achieved optimum values.更多还原