A simple model of neutrally stratified boundary-layer flow over real terrain incorporating wavenumber-dependent scaling

✍ Scribed by P. A. Taylor; J. L. Walmsley; J. R. Salmon

• Publisher: Springer
• Year: 1983
• Tongue: English
• Weight: 1008 KB
• Volume: 26
• Category: Article
• ISSN: 0006-8314
• DOI: 10.1007/bf00121541

✦ Synopsis

Our experience in applying earlier versions of a model of boundary-layer flow over low hills to real terrain (see Walmsley et al., 1982) has led to the development of a new version which we designate MS3DJH/3. The main improvements are the use of terrain-dependent length and velocity scales and the blending of inner and outer layer results into a single 'universally valid' solution for the velocity perturbation field. MS3DJH/3 was carefully calibrated against alternative computations of Row over idealized twodimensional terrain features using more detailed models prior to its application to real, three-dimensional terrain. It still provides high spatial resolution with low computing cost and is applicable to flow over terrain features with horizontal scales from 10 m to 10 km.