Tom Clifton: Fluid Flow: AntidunesAntidunes are bedforms that form in fast, shallow flows. I have been fascinated by them since I was 5. They were even the topic of my dissertation, but that was mainly so I could continue playing in the sand.(Untitled)- March 11, 2002 Antidune Flow Equations In order to publish my dissertation online, I needed to get all the equations converted to gif images. So I spent some time this afternoon back in Word 3, taking screen shots of the equations. These are the equations for Chapter 4 on sediment transport in antidune flow.http://radio.weblogs.com/0100021/categories/antidunes/2002/03/10.html#a188 (Untitled)- March 7, 2002 Antidune References I recently posted the reference list from my dissertation to the ES Designs site. Feel free to link to them if you ever have a need to. Each reference has a named anchor consisting of first authors last name and the publication year (<a name="clifton1973">), so you can point directly to a reference. Multiples are differentiated by sequential letters at the end of the entries (for example if there were multiple entries from 1973 with Clifton as the first author,...http://radio.weblogs.com/0100021/categories/antidunes/2002/03/06.html#a177 (Untitled)- March 6, 2002 Patterns of Erosion and Deposition in Antidune Flow The distribution of shear stress along the bed drives sediment transport (Middleton and Southard, 1984), with the sediment discharge in the flow being a function of the bed shear stress. Sediment discharge is greater where bed shear stress is greater, because the higher bed shear stresses can remove more sediment from the bed. McLean and Smith (1986) indicate that changes in bed elevation with time (whether the sediment is being eroded from.http://radio.weblogs.com/0100021/categories/antidunes/2002/03/06.html#a176 (Untitled)- March 4, 2002 Sediment Transport in Antidune Flow The key to understanding antidunes, their behavior, and the sedimentary structures that they produce requires insight into how sediment is transported in antidune flows. It is remarkable that after nearly 90 years of study, there are no published studies detailing sediment transport in antidune flow. The following discussion provides an overview of sediment transport in antidune flow. A detailed discussion gets into some hairy equations that I haven't...http://radio.weblogs.com/0100021/categories/antidunes/2002/03/03.html#a166 |