Whole-field velocity measurements of flow around interacting barchan dunes in a novel flume environment

Nathaniel Bristow1, Gianluca Blois2, Taehoon Kim3, Jim Best3 and Kenneth T Christensen4, (1)University of Minnesota, St. Anthony Falls Laboratory, United States, (2)University of Notre Dame, Notre Dame, IN, United States, (3)University of Illinois at Urbana Champaign, Urbana, IL, United States, (4)University of Notre Dame, Aerospace and Mechanical Engineering, Notre Dame, IN, United States