Next Article in Journal
Optimizing Smoke and Plume Rise Modeling Approaches at Local Scales
Next Article in Special Issue
Atmospheric Processes in the South Baikal Basin and Their Role in Relief Formation
Previous Article in Journal
Development of an Urban High-Resolution Air Temperature Forecast System for Local Weather Information Services Based on Statistical Downscaling
Previous Article in Special Issue
Challenges and Opportunities for Data Assimilation in Mountainous Environments
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle
Atmosphere 2018, 9(5), 165; https://doi.org/10.3390/atmos9050165

Separation of Upslope Flow over a Plateau

1
Faculty of Civil and Environmental Engineering, Technion—Israel Institute of Technology, Haifa 32000, Israel
2
Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, Notre Dame, IN 46530, USA
3
Department of Applied Physics, Eindhoven University of Technology, Eindhoven, 5612, The Netherlands
4
US Army Research Laboratory, Battlefield Environment Division, White Sands Missile Range, NM 88002, USA
5
College of Water Resources & Civil Engineering, China Agricultural University, Beijing 100083, China
6
Beijing Engineering Research Center of Safety and Energy Saving Technology for Water Supply Network System, Beijing 100083, China
7
Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN 46530, USA
*
Author to whom correspondence should be addressed.
Received: 5 February 2018 / Revised: 15 April 2018 / Accepted: 27 April 2018 / Published: 30 April 2018
(This article belongs to the Special Issue Atmospheric Processes over Complex Terrain)
View Full-Text   |   Download PDF [3781 KB, uploaded 3 May 2018]   |  

Abstract

A laboratory study was conducted in order to gain an understanding of thermal convection in a complex terrain that is characterized by a plateaued mountain. In particular, the separation of upslope (anabatic) flow over a two-dimensional uniform smooth slope, topped by a plateau, was considered. The working fluid was homogeneous water (neutral stratification). The topographic model was immersed in a large water tank with no mean flow. The entire topographic model was uniformly heated, and the width of the plateau, the slope angle, and the heating rate were varied. The upslope velocity field was measured by the Particle Tracking Velocimetry, aided by Feature Tracking Visualizations in order to detect the flow separation location. An analysis of the resulting flow showed a quantitative similarity to separating the upslope flow over steeper slopes, in the absence of a plateau when an effective angle that incorporates the normalized plateau width, the slope length, and the geometric slope angle, was used. Predictions for the dependence of the separation location and velocity on the geometry and heat flux were presented and compared with the existing data. View Full-Text
Keywords: atmospheric flows; anabatic flows; complex topography; meteorology; topographic effects atmospheric flows; anabatic flows; complex topography; meteorology; topographic effects
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Hilel Goldshmid, R.; Bardoel, S.L.; Hocut, C.M.; Zhong, Q.; Liberzon, D.; Fernando, H.J.S. Separation of Upslope Flow over a Plateau. Atmosphere 2018, 9, 165.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Atmosphere EISSN 2073-4433 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top