Modeling media research–the fine color coded fraction.

Modeling media research–the fine color coded fraction.

We’re continuing our research on low density modeling media.  The mix we usually use tapers out at around 0.5mm on the fine end, but clearly adding smaller particles has a big effect on behavior in movable bed models.  This fraction fills the interstitial spaces...

Cara off to RRNW, more media work.

Cara off to RRNW, more media work.

We worked on modeling media issues this week, this time on methods to wash it to remove dust and other debris. Here Cara and Jesse agitate a batch. The street value of the exotic color-coded-by-size media in the buckets you see here beside an Em4 box is about $6,000....

Liberally supplied with media.

Liberally supplied with media.

We received over twenty 250-pound drums of plastic media this week. Much of this is the specially ground Em4 material, but quite a bit is the standard Emriver Em2 mix. It’s probably safe to say we are now the world’s largest holder of plastic river model...

Geobong V is a success.

Geobong V is a success.

OK, the first thing we need is a socially acceptable name for this device, because the joke name that stuck to it is not going to work. Aside from that, today’s first run for this prototype was beautiful. It contains media in four sizes/colors, and does a bunch...

The Em4 moves.

The Em4 moves.

I’m just too damn busy with consulting work to post much now, but here’s a little Quicktime movie showing the Em4’s articulation mechanism, made from a series of stills in Winona State’s wetlab. You can see Toby Dogwiler and Cathy Summa (the...