Happy #FlumeFriday! Here are rough videos of the display from an IR camera looking down at a horizontal jet in Zeeshan Saeed's experimental setup. Do you notice a greater range of turbulence length scales in the faster jet?
After 1.5 years away from academia, I’m excited to be back in the lab, gearing up for experiments on #river bed erosion in permafrost. Stay tuned... #FlumeFriday #postdoclife
How steady are river dunes under steady flow? Check out our just published paper in Nature Communications
@natcomms.nature.com! www.nature.com/articles/s41...
With @roelandvdvijsel.bsky.social at @w-u-r.bsky.social. Last paper of #PhDlife finally published! #publication #riverdunes #flumefriday
Happy late #FlumeFriday. Here is a top view of sand ripples formed in the EFWT at UNH using oscillations of an amplitude 8 cm and a period of 2 s. The distance between ripple crests is about 6 cm and the sand is fine (median gran size is around 0.2 mm). these ripples affect coastline evolution.
It’s been a while but I’m finally back for #FlumeFriday! Fantastic to use the #Armfield sediment transport flume with NTU geographers to explore bed forms! #geomorphology #rivers
Happy #FlumeFriday! I started making sand ripples in the environmental flows water tunnel at #UNH. The oscillatory flow pushes the sand at the crests back and forth and creates vortices downstream (leeward side) of the ripples.
Two people discussing a scientific poster
Go check out Marijke's poster! 1538
#Turbulence, turbidity currents, #mud
#FlumeFriday #AGU24
Image of an almost empty lab with a large hydraulics flume.
Getting ready for the move! #FlumeFriday #rivers
A view down a laboratory flume. There are battons attached to the wall, sparse cobbles on the bed, and water flowing down the middle.
#FlumeFriday Our rough-bed river experiments now have rough walls as well! Great to see what @dwhit.bsky.social and @houseago.bsky.social have been up to.
A local college student is currently using our small flume to observe sediment movement and gather data for her A Level project.
Something for your #FlumeFriday viewing.
To introduce myself to the @bsky.app here are some pics of my research over the past few years
#riverrestoration #biogeomorphology #boulders #flumefriday
🚨🚨🚨 Paper Alert 🚨🚨🚨
There is no better way then using my first BlueSky post with a #paper alert!
Our new research reveals that migrating dunes capture clay flocs. #FlumeFriday. With far-reaching consequences. Read all about it here: lnkd.in/eWNDf6eE #proud
Picture of a flume filled with fine sand and tiles, used to model/simulate waterfall formation.
Are we still doing #FoldFriday and/or #FlumeFriday Earth Science folks?
If not, we really should be!
Post and repost your pictures of folds in rocks and/or your flume! There is no algorithm here, so we need to do the heavy lifting.
Here is a flume picture from last week (waterfall format model).
White tiles on top of sand in a flume. Water is flowing over the model, with some sand eroding under the tiles. Time step 1.
White tiles on top of sand in a flume. Water is flowing over the model, with some sand eroding under the tiles. Time step 2.
We still doing #FlumeFriday here?
Last night, I used a flume to demonstrate how waterfalls retreat when there is a hard rock layer (Platteville Limestone) over a soft rock layer (St. Peter Sandstone) in Intro. to Earth Sciences.
In the Twin Cities, this represents how our waterfalls form & move.
Dear environmental fluid experimentalists, my lab (EFML @cee_stanford) is considering purchasing new flow measurement and visualization solutions. Does anyone have good experiences with any products or companies they would recommend? #FlumeFriday
Now that we have hashtags here… let’s bring #FlumeFriday over!
For #FlumeFriday, here are sand ripples (aka ridges, ribbons, or waves) at Ludington, MI. They form due to the orbital flow under waves. They can also form due to current-driven eddies, like in rivers, but current-formed ripples tend to be less regular and less symmetrical.
Questions for #FlumeFriday - our Vectrino Profiler had an accident and one of the prongs got loose. Does anyone know of a service that can repair these instruments??? Nortek sadly no longer services them :(
Alternately, what other instruments are people using in lab to measure velocity profiles?
Belated Happy #FlumeFriday - we are happy to share this short timelapse of our most recent Em4 delivery to Auburn University! There are links in the description box to really interesting related research.
www.youtube.com/watch?v=aL8I...
Very cool #FlumeFriday
I don't usually have content for #FlumeFriday, but for the last day of class, it's always great to do some fun demos for our Civil Engineering undergrads
Couldn't get this to post correctly yesterday for #FlumeFriday, but it's our latest fun time-lapse compilation of attending GSA Connects 2023 in Pittsburgh.
www.youtube.com/watch?v=FFsd...
My November video is here!
Find out what the Butterfly and Hawkmoth effects are, and how they can make numerical models chaotic.
Featuring the FloodSkinner Virtual Flume
#Geography #NumericalModels #Water #FlumeFriday
www.youtube.com/watch?v=SXRs...
Hey-o! Happy #FlumeFriday and thanks to
@icemeanders.bsky.social for this share. Also Happy National Black Cat Day to all who observe 🖤
Students around a stream table
Early #FlumeFriday with the River Engineering (aka River Morphodynamics) students. CEE at Penn State.
@emriver.bsky.social
Water flowing over a sand bed in a flume. The flume has yellow cables on the wall (parallel to the flow) and across it (perpendicular to the flow) at different depths.
Is #FlumeFriday a thing around here?
I needed a fun way to demonstrate a model effect for my next Floodology video. So I made a virtual flume.
I don't think #FlumeFriday is a thing here yet?
youtu.be/DM3TKJ2RWPc?...
