A New Scheme for Effective Roughness Length and Effective Zero-Plane Displacement in Land Surface Models

A new model for three-dimensional random

A new model for three-dimensional random roughness effect on friction factor and heat transfer in microtubes

✍ Renqiang Xiong; J.N. Chung 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 886 KB

In this paper we propose a novel bottom-up approach to generate a three-dimensional microtube surface with random roughness. This approach starts from four corner points with two defined coordinates and roughness height created by a Gaussian number generator, and then uses a bi-cubic Coons patch to