RadLib: A radiative property model library for CFD

RadLib is a C++ library of radiation property models that can be applied to variety of systems involving radiative heat transfer, including CFD simulations. RadLib includes three major radiation property models—Planck Mean (PM) absorption coefficients, the weighted sum of gray gases (WSGG) model, and the rank-correlation spectral line weighted-sum-of-gray-gases (RCSLW) model. RadLib includes C++, Python, and Fortran interfaces and can be expanded to include additional models. Several example cases illustrate use of the models with an included ray-tracing solver, compare their accuracy relative to line-by-line (LBL) solutions, and examine their computational costs. Additionally, an integrated CFD example of an ethylene burner configuration using Fire Dynamics Simulator (FDS) is provided. RadLib provides researchers with convenient access to validated radiation property models and a framework for further development.

RadLib 是一款适用于多种涉及辐射传热系统的 C++ 库，包括计算流体动力学 (CFD) 模拟。该库包含三种主要的辐射特性模型——普朗克平均 (PM) 吸收系数、加权灰气体 (WSGG) 模型以及秩相关光谱线加权灰气体 (RCSLW) 模型。RadLib 提供了 C++、Python 和 Fortran 接口，并能够扩展以包含额外的模型。库中包含的示例案例展示了如何使用这些模型与内置的光线追踪求解器，并与其相对于逐线 (LBL) 解的准确性进行比较，同时考察了它们的计算成本。此外，还提供了一个使用火灾动力学模拟器 (FDS) 的乙烯燃烧器配置的集成 CFD 示例。RadLib 为研究人员提供了便捷的验证辐射特性模型访问途径和进一步开发的基础框架。