Measurement of the free-surface elevation in a steady flow in complex topography using photogrammetry
Journal
River Flow 2016: Iowa City, USA, July 11-14, 2016
ISBN
9781317289128
Date Issued
2016-06-22
Author(s)
Abstract
Experiments are widely used to obtain validation data for numerical models in well-controlled (low conditions. One difficulty when conducting experiments is the selection of appropriate measurement techniques. Most of the current techniques can only capture a small portion of the area of interest and some of them are also intrusive. This study uses photogrammetry to determine the water elevation in a wide area representing a scale model of the Dahan creek in Taiwan, without perturbing the flow. In this work, steady flows over a fixed bed (without sediment transport) are investigated. Based on the obtained results, the capabilities and limitations of the photogrammetry in capturing the flow features are discussed.
Type
book part