Bagus Nugroho

Varied average height and area coverage of rough surfaces on turbulent boundary layers

Abstract Turbulent boundary layer (TBL) over various area coverages of rough surfaces was studied in a wind tunnel using hot-wire anemometry. The rough surfaces are built by randomly distributed sand grains with an average of 0.7 and 0.9 mm heights, covering 12%, 25%, 38%, 55%, a...