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CFD Jobs Database - Job Record #16816

Job Record #16816
LocationNetherlands, Petten
InternationalYes, international applications are welcome
Closure DateFriday, January 01, 2021
NRG is the sole nuclear service provider in the Netherlands. Our customers 
include major international companies. Our motive is to ensure a renewable 
energy supply, a cleaner environment and better health. Our business is to 
provide specialised, technical services in the areas of risk, safety and 
optimisation of business operations in the nuclear, oil and gas and 
petrochemical sectors. We are leaders in the field of Nuclear Data analysis for 
research and innovation for many nuclear applications. Further international 
development is one of our key ambitions. Our offices are located in Arnhem and 
Petten. The team is based in Petten.

Within our unit Research and Innovation, we are currently seeking for a  


Your responsibilities:
In the event of overheating of the nuclear reactor core during a severe 
accident, large amounts of hydrogen are generated that may be released into 
containment building. As the hydrogen mixes with air in the containment, it can 
form a flammable gas mixture. The possible combustion of hydrogen may damage 
relevant safety systems and may put the integrity of the containment 
building at risk. Due to the increasing potential of CFD, especially in terms of 
reduced costs and risks when compared to experimental studies, great efforts 
have been put on the improvement of current CFD models. However, CFD approaches 
for the prediction of turbulent  hydrogen combustion need further development 
and validation, as they are required to properly reproduce the main physical 
aspects under different regimes (such as deflagration and detonation) and 
different conditions of turbulent hydrogen combustion. 
Within the frame of the MSc thesis project, the following activities are 

1)	Literature review on turbulent combustion modelling, in order to get 
familiar with the topic.

2)	Learning the ANSYS-FLUENT and OpenFOAM CFD solvers. NRG has developed 
and implemented dedicated combustion models in FLUENT (using user defined 
functions) and OpenFOAM for the transient hydrogen turbulent combustion.

3)	Implementation of a density based version of the current combustion 
models (Zimont, Lypatnikov) in OpenFOAM for fast deflagration problems.

4)	Investigation and implementation of specific convective schemes for 
improving the accuracy of the combustion model (i.e. pressure wave phenomena).

5)	Application of the combustion models to different experimental studies 
for validation purposes. 

6)	Further development and validation of the hydrogen combustion models, in 
the context of non-uniform mixture deflagrations (in presence of steam, CO, 
7)	Preparation of the MSc thesis.                

Your profile:
•	MSc student in applied science, with specialization in computational 
fluid mechanics
•	Good knowledge of fluid mechanics and numerical methods
•	Required computer experience: Linux, Windows,  C/C++
•	Fluency in written and spoken English
•	Good analytical and problem solving skills
•	Dedicated, good communication and social skills

Our offer:
•	A challenging thesis project to be executed within a successful team 
with an informal atmosphere and an excellent reputation
•	Strong support from enthusiastic members of the CFD team 
•	Monthly allowance/stipend
•	Transportation for the period of stay

Contact Details:
Dr. Daniele Dovizio
Tel: +31 224 56 8102


Contact Information:
Please mention the CFD Jobs Database, record #16816 when responding to this ad.
NameDaniele Dovizio
Email ApplicationYes
Record Data:
Last Modified11:34:16, Friday, October 30, 2020

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