DEM Solutions software is used to simulate, analyze, and visualize particle flows so that you can get a feel for what is happening in a situation involving particle kinematics, momentum, and heat and mass transfer.

Here are two papers on their product both of which fascinated me:

A structured approach to modeling SAG mill liner wear—numerical modeling of liner evolution.

Simulation of sub-sea gravel removal using the coupled computation fluid dynamics-discrete element method.

Let me pause here to tell you why I am fascinated by the DEM software (DEM stands for Discrete Element Modeling). Many years ago, as a master’s student, I used a black carbon-coated paper that I cut into a simulacrum of rock joints. I sloshed silver paint in key locations, applied a voltage and measured the potential distribution. This simple experiment got me a thesis in rock joint fluid flow.

Along the way I discovered finite difference and finite element methods. Then I read Milton Harr’s book Mechanics of Particulate Media. How distant those far-from-innocent (indiscrete) times seem now I look at the successes of discrete element software.

[An aside recommendation: while compiling this piece I came across Harr’s Gerald A. Leonards Lecture. It is marvelous, the best I have ever seen, worth every second spent on it. Go to it.]

Is DEMS the universal solution? At last computing power catches up with the need to analyze the real world. Solutions for the mining industry are not there yet, but the computer codes are standing ready: do you need to solve a block caving problem, specify the geometry of a jointed rock slope, choose the right excavator to pick up blasted rock, simulate the conveyor performance, optimize the flume geometry, calculate the factor of safety of the slope. I have just come across the computer code that can solve all these problems and countless more involving discrete particles.

Now my technical editor likes that kind of text: grabs the reader’s attention and promises them something. Problem is that is not the way I normally write. So back to my normal mode of expression: but even in my dry prose I am excited about this code and its potential.

Here is a press release about DEMS; I do not normally repeat such on this page, but it meets my primary criterion for posting: I find it interesting and I suspect so will you.

DEM Solutions to launch EDEM 1.2 at POWTECH 2007

DEM Solutions, a leading developer of discrete element modeling software solutions, is to launch the latest version of its market leading EDEM software at POWTECH 2007 in Germany (Nürnberg, 27th – 29th March 2007).

The EDEM software enables engineers to simulate the movement of particulate solids within their handling, processing and manufacturing operations to produce valuable information for innovation and improvement of equipment and process design.

First launched in 2005, EDEM has been deployed across the globe in a broad range of sectors including pharmaceutical, chemical, mineral and materials processing as well as mining, oil & gas production, geo-mechanics and agriculture.

John Favier, CEO of DEM Solutions, commented:

“We are delighted to be showcasing EDEM 1.2 at POWTECH 2007. Our latest software will deliver significantly enhanced processing speeds allowing engineers to generate and analyse ever more complex particle simulations. This – combined with our ability to integrate with other CAE solutions – will further increase our ability to support engineers in their drive towards greater efficiency and reduced costs in industrial and manufacturing processes.”

EDEM has the unique ability to couple with other CAE tools, which gives the software the power to simulate the complicated interactions between particles and other materials and forces. These CAE couplings include fluid dynamics, electrical and magnetic, chemical kinetics and rigid body dynamics.

About DEM Solutions

DEM Solutions is a leader in discrete element modeling software. Its EDEM software is used to simulate particulate handling, processing and manufacturing operations in pharmaceutical, chemical, mineral and materials processing as well as oil & gas production, agricultural and construction and geo-technical engineering.EDEM provides high-resolution information on particle kinematics, momentum, heat and mass transfer in particulate flows. DEM Solutions’ consultancy team works with customers to solve design and production problems by simulating and analyzing the processes at the particle scale. DEM Solutions’ corporate headquarters are located in Edinburgh, UK with offices in Lebanon, NH, USA. For more information:

For further press information, please contact:

DEM Solutions:
John Favier / Alison Hope
T: +44 (0) 131 558 2681

GTH Media Relations
Toby Hall / Robert Koh (gth media)
T+44 (0)20 7153 8039 / 8035

Fluent, which claims to be the world leader in computational fluid dynamics software and services, has entered into a partnership with DEM Solutions, a leading developer of Discrete Element Methods software solutions.

Fluent’s software is used to simulate, visualize, and analyze fluid flow, heat and mass transfer, and chemical reactions. A reasonable technical article that illustrates the use of their codes deals with Hydropower Turbines made more efficient. I liked the article on Activated Sludge Basin – maybe because I have tried to design one myself many years ago and that was not easy. For those who liked Pirates of the Caribbean, a similar sense of the wry will take you to A Dry Passage to the Afterlife.