Understanding turbulent heat transfer with practical surface conditions

热传递决定了能源和运输系统的效率，如燃气轮机、高速发电机和涡轮增压器。在许多应用中，传热涉及固体表面上的湍流流体流动，但由于对表面条件的了解不足，导致模型不可靠、设计不理想和成本损失。因此，该项目旨在提高我们对实际表面粗糙度，固流配对和不均匀加热的传热的基本理解。在现有系统数据的基础上，该项目将提供基于物理的模型，可以可靠地预测热量传递，从而降低能源和运输成本。

Heat transfer dictates the efficiency of energy and transport systems such as gas turbines, high-speed generators and turbochargers. These are among many applications where heat transfer involves turbulent fluid flow over solid surfaces, but where poor understanding of surface conditions leads to dubious models, suboptimal designs and cost penalties. This project therefore aims to advance our fundamental understanding of heat transfer accounting for the practical surface conditions of roughness, solid-fluid pairing and uneven heating. Building on capabilities that now place systematic data within reach, this project will deliver physics-based models that can robustly predict heat transfer, leading to reduced costs of energy and transport.