Characteristics of a Chemical Reactor Model

Type: Master's Assignment
Contacts: André KokkelerJelle de Jong
Location: CAES, University of Twente
Remark: Expired


For many industrial applications nowadays fluidized bed reactors are used. Floating on the upward gas flow the particles inside the reactor start to behave like a bubbling fluid. Several aspects of fluidized beds are not yet fully understood and therefore a lot of research is dedicated to these reactors.

Chemical Reactor Model

The research chair Fundamentals of Chemical Reaction Engineering (FCRE) at the University of Twente has developed multiscale CFD computer models to describe the behavior of fluidized beds in detail. With the Discrete Particle Model (DPM) the exact position, velocity and rotation of all particles is tracked and all collisions are solved alternately with the Navier-Stokes equations for the gas flow.

The (partly parallel) code is written in C and is run on one of our Linux clusters. Because of the coupling between particles and gas phase, the simulation is quite costly; for one second of simulation about 10000 seconds of simulation time is needed, meaning that a typical simulation has to run for about a week.


The Master Assignment is based on the cooperation between the two groups FCRE and Computer Architecture for Embedded Systems (CAES).

The assignment focuses on the characterization of the code, aiming for a speedup of 10 in simulation time compared to the current implementation. Therefore, bottlenecks of the code need to be investigated, to determine which kernel operations are computationally intensive and what the typical operations in these kernels consist of. Based on these results, optimizations should be proposed, implemented and tested using either an improved software implementation or a hardware accelerated solution.

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