Skip to Content

Third International Symposium on Shallow Flows

June 4–6, 2012

Host: University of Iowa College of Engineering
Iowa City, Iowa USA




The Third International Symposium on Shallow Flows (ISSF) follows the meetings in Delft and Hong Kong. ISSF has been established as a major meeting event in the area of environmental hydraulics and environmental fluid mechanics, attracting participants primarily from academia.

Shallow flows are important in many applications in water and air environments. Major advances are expected over the next couple of years, offering new insights into the dynamics of shallows using state-of-the-art experimental (e.g., particle image velocimetry) and numerical (e.g., direct numerical simulation, large eddy simulation, and large-scale predictive models) techniques. In Particular, these advances should allow for better understanding of the role played by the quasi-2-D large-scale coherent structures and the interactions between these large scales and the 3-D turbulence; the degree of non-uniformity of shallow flows in the vertical direction and the role of vertical motions; and the effect of the large-scale turbulence on bottom friction and morphodynamic processes. Shallow water models are routinely used for coastal construction activities, as well as to aid in risk assessment. As in nature, shallow flows occur most often over alluvial beds; the investigation of morphodynamics processes in shallow flows will be another major focus area of the conference.

Challenges for Shallow Flows Researchers

Three of the most important and imminent challenges in shallow flow research are understanding to what extent the physics of these flows is dependent on scale effects; how the physics changes between the simpler geometries studied in the laboratory in controlled environments or using DNS/LES simulations; and how an understanding of shallow water flows and their interaction with urban elements can culminate to better predictive models. In this regard, detailed investigations of shallow flows in the field and the use of eddy-resolving numerical simulations in realistic geometries using hybrid RANS-LES techniques can be of great utility in understanding and quantifying  relevant contaminant transport processes, anthropogenic influences (e.g., heat, dissolved and suspended organic/anorganic material, storm surges on land) and sediment dynamics.

Another challenge is the use of this detailed information on processes and mechanisms to develop accurate simpler analytical models that can help understand global quantities characterizing the spatial and temporal development of these flows. As in nature, shallow flows occur most often over alluvial beds; the investigation of morphodynamics processes in shallow flows will be another major focus area of the conference.

Finally, in many shallow aquatic environments, the interactions among flow, turbulence, vegetation, and macroinvertebrates and other organisms, as well as the transport and retention of particulate matter, have important consequences on the ecological health of rivers and coastal areas. Large scale atmospheric flows are also often analyzed using shallow water theory, and hence will be of particular interest in the symposium.

The Third Symposium on Shallow Flows will provide an excellent forum for reporting, exchanging ideas, and sharing discussions on the latest advances in the study and prediction of shallow flows, with particular emphasis on the areas identified above. The papers from all other relevant areas are also welcome.

Contact Us:

IIHR—Hydroscience & Engineering


Tags: , , , ,
Last modified on June 29th, 2015
Posted on June 9th, 2011

Site by Mark Root-Wiley of MRW Web Design