Fluid Mechanics site of Jan Gerrit Kootstra.

I studied applied mathematics at the University of Groningen from 1987 til 1993. Graduated as MSc in august 1993.

The Master Thesis was about blood flow in the femoral artery, about the prediction of arteriosclerosis occurrences just above the knee.

The flow was modelled by Navier-Stokes equations for a Newtonian, stationary, incompressible fluid. Look here for a reference to the article my tutors and I wrote about this subject in 1996. If you want to buy the article, I will not benefit from it: Science Direct

In January 2000 I started a PhD studies in Computational Fluid Dynamics at the University of Groningen. The PhD studies unfortunately stranded after 3.5 years

The first project consisted of a rewriting of an existing flow model. The model combines incompressible and compressible flow for low Mach numbers (0 < Mach <= 1 ). The model is written in the conservative form, to be able to simulate flows with shock waves or singularities.

The base is a model made by Ronald Rook MSc, he introduced the model in his Master thesis in 1996. As a test problem he used the square-driven cavity. This base model did not use the conservative form and was therefore not suitable for a shock wave simulation.

As a start I used the square-driven cavity too, to validate the extended model. I did not come further then this. The source code of the simulator failed to give a correct solver.

After 3.5 years of studying the mathematical model is finished, but the simulation code is a failure. My PhD studies is ended in July 2003. The project may still be open for continuation.

For comments or questions: mailto:jan.gerrit@kootstra.co.uk

Professionally I am a Linux solution designer, applying Red Hat products.

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