Abstract These last years, aircraft manufacturers and environmental international bodies have set drastic targets concerning turbo-engines pollution and consumption reduction. To reach the objectives of pollutant emission and consumption reductions, innovative solutions such as constant-volume combustion are in development. Characterizing the propagation of a kerosene-air flame in this kind of combustion is necessary. Particularly, the knowledge of fundamental properties like the laminar burning velocity in laminar adiabatic conditions can be useful for the design of efficient innovative turbo-engines. A new spherical combustion chamber developed in Institut PPRIME and the associated post-processing procedure are first validated using a n-decane/air premixed flame, and a good agreement is obtained with the literature. Measurements of laminar burning velocities and Markstein lengths of commercial kerosene/air mixture and kerosene surrogates/air are then performed at various temperatures ( T 0 = 400 K to 470 K), pressures ( P 0 = 0.1 MPa to 0.5 MPa) and equivalence ratios ( Φ = 0.6 to 1.5). Two mono-component surrogates are tested as a representative of commercial kerosene (n-decane and n-dodecane), with two multi-component surrogates: the Dagaut surrogate (n-decane/n-propylbenzene/n-propylcyclohexane) and the MURI2 surrogate (n-dodecane/iso-octane/1,3,5-trimethylbenzene/n-propylbenzene). Additionally, numerical simulations of laminar burning velocities are performed using JetSurF 2.0 and the Luche reduced chemical kinetic mechanism, representing respectively mono-component surrogates and the Luche surrogate. They are able to represent correctly the experimental measurements. A comparison of the different employed surrogates with commercial kerosene is also performed to evaluate the ability of these surrogates to reproduce the laminar burning velocity properties of the commercial kerosene.

中文翻译：

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评估替代品在恒定体积燃烧条件下再现层流燃烧速度的能力和对商业煤油拉伸的敏感性

摘要 近年来，飞机制造商和国际环境组织制定了关于涡轮发动机污染和降低消耗的严厉目标。为了实现污染物排放和减少消耗的目标，诸如定容燃烧等创新解决方案正在开发中。在这种燃烧中表征煤油-空气火焰的传播是必要的。特别是，基本特性的知识，如层流绝热条件下的层流燃烧速度，可用于设计高效的创新涡轮发动机。Institut PPRIME 开发的新型球形燃烧室和相关的后处理程序首先使用正癸烷/空气预混火焰进行验证，并与文献取得了良好的一致性。然后在不同温度（T 0 = 400 K 至 470 K）、压力（P 0 = 0.1 MPa 至 0.5 MPa）和当量比下测量商业煤油/空气混合物和煤油替代物/空气的层流燃烧速度和 Markstein 长度( Φ = 0.6 到 1.5)。测试了两种单组分替代品作为商业煤油（正癸烷和正十二烷）的代表，以及两种多组分替代品：Dagaut 替代品（正癸烷/正丙基苯/正丙基环己烷）和 MURI2 替代品（正十二烷/异辛烷/1,3,5-三甲苯/正丙苯）。此外，层流燃烧速度的数值模拟是使用 JetSurF 2.0 和 Luche 简化化学动力学机制进行的，分别代表单组分替代品和 Luche 替代品。他们能够正确地表示实验测量。还进行了不同使用的替代品与商业煤油的比较，以评估这些替代品再现商业煤油的层流燃烧速度特性的能力。