Paper accepted

I spent some time at UBC last spring collaborating with Ian Frigaard and his students Kamran Alba and Mohammad Taghavi. A paper based on that work entitled “Incomplete fluid-fluid displacement of yield-stress fluids. Part 2: Highly inclined pipes” by K. Alba, S. M. Taghavi, J. R. de Bruyn, and I. A Frigaard has now been accepted for publication in the Journal of Non-Newtonian Fluid Mechanics.  I enjoyed helping Kamran, Mohammad, and Ian sort out the very complicated behaviour they observed in their experiments. 

Back from Hong Kong

I had a productive 10 days in Hong Kong. I enjoyed some good food, did some hiking,  and explored some of the city’s interesting neighbourhoods. I also explored the limits of my laptop’s memory by running Monte Carlo simulations for 10 million time steps. We made some good progress with our model for restricted diffusion, although, as always, there is still some work to do. 


Hong Kong report

It was hot and humid in London when I left, but it is hotter and humidder in Hong Kong! The internet in my room doesn’t work and I hurt my foot on a hike yesterday, but otherwise things are good. I am now sitting in my office in the Mathematics Department at City U, bringing myself back up to speed on what I did when I was here last year and deciding what I need to do over the next week or so.

Heading west, to the far east.

I am leaving early Friday morning for 10 days in Hong Kong. I will be visiting Jonathan Wylie in the Department of Applied Mathematics at City University of Hong Kong. Jonathan and I are working on a very math-y project related to restricted diffusion, something that is very relevant to our work on microrheology, among other things. 

Anchors aweigh!

We had a paper accepted today: “Numerical investigation of the inclined pullout behavior of anchors embedded in clay,” by Ahmed M. Fahmy, John R. de Bruyn, and T. A. Newson has been accepted for publication in Geotechnical and Geological Engineering. Ahmed was a grad student in Civil and Environmental Engineering who was co-supervised by Tim Newson and me. How did I come to be involved in numerical modeling of anchors? The sediment on the ocean floor is non-Newtonian and thixotropic. Unfortunately it was too complicated to include non-Newtonian behavior in our models, but maybe next time!