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摘要: 基于带化学反应的三维Euler方程,采用氢气-空气的9组分19步基元反应简化模型,对圆环形燃 烧室内的旋转爆轰进行了数值模拟,讨论了旋转爆轰波的三维结构及侧向稀疏波对旋转爆轰波阵面的影响。 数值结果表明,爆轰波能够以旋转方式沿预混气层稳定传播。在侧向稀疏波作用下,爆轰波阵面发生变形。 与理想的C-J爆轰相比,爆轰波强度和爆轰参数都有所下降。Abstract: Basedonthemulticomponentthree-dimensionalEulerequation,thephenomenaofrotating detonationintheannularcombustorweresimulatednumerically,andthethree-dimensionalstructure oftherotatingdetonationwaveandtheeffectsofthelateralrarefactionwavesonthedetonationwave frontwerediscussed.Thenumericalresultsshowthattherotatingdetonationwavecanpropagate steadilyinthelayerofpremixedgas,andthedetonationwavefrontisdistortedduetothelateralrarefactionwaves. ComparedwiththeidealCJdetonation,theintensityandparametersofrotatingdetonationwavebothdeclinesomewhat.
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