A témavezető neve:
Czifrus Szabolcs - tanszéke: Nukleáris Technika Intézet - beosztása: egyetemi docens - tudományos fokozata: PhD - email címe: czifrus@reak.bme.hu |
A doktori munka készítésénak helye és címe: BME Nukleáris Technika Intézet 1111 Budapest Műegyetem rakpart 9. |
A kidolgozandó feladat címe: Design of Validation Measurements for Reactor Transient Analysis with Multiphysics Codes |
A téma rövid leírása, a megoldandó legfontosabb feladatok felsorolása: The state-of-the art tools for analysing the complex processes of nuclear reactors are the multi-physics codes. The “traditional” approach for investigating transient phenomena was the application of reactor physics/kinetics, thermal-hydraulics and thermal-mechanics code separately. However, neglecting the coupling between the various phenomena may result in significant inaccuracies. The above mentioned multi-physics codes handle these problems in a different way: a single code can model all the relevant groups of phenomena. Most of the available codes, such as the commercial ANSYS system and the open-source GenFoam apply a single finite-volume discretization mesh for solving all of the groups of partial differential equations of reactor physics, thermal-hydraulics and thermal-mechanics. The validation of such multi-physics codes is difficult and problematic in many cases. One of the reasons for the problems is that there is only a narrow group of reactor systems which can be applied for validation purposes. Reactors of too low power, such as critical assemblies cannot be used since there are no detectable thermal effects which are essential for the validation. On the other hand, in reactors of too high power it is not normally allowed to perform certain measurements. Quite luckily, the Training Reactor of BME (TR) has many good properties which make this device an almost ideal tool for Multiphysics code validation. Since the international nuclear community is strongly lacking measurements, the results would be of great value. The PhD student would perform the following tasks:
There will be opportunities for the PhD student to participate in international collaboration, particularly with EPFL Lausanne. |
A jelentkezővel szemben támasztott elvárások: Adequate knowledge of reactor physics and thermal hydraulics Fundamental knowledge of nuclear measurement techniques Affinity for using computational modelling tools, applying experimental methods Good level of English
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Nyilatkozat: A fenti munkahelyen a javasolt témában kutatás feltételei biztosítottak, a téma meghirdetését a munkahelyi vezető jóváhagyta. |
Budapesti Műszaki és Gazdaságtudományi Egyetem Természettudományi Kar |
1111 Budapest, Műegyetem rakpart 3. K épület I. em. 18. www.ttk.bme.hu |