Towards the direct numerical simulation of a single phase pressurized thermal shock

A. Shams; E. M.J. Komen

Towards the direct numerical simulation of a single phase pressurized thermal shock

A. Shams^*
, E. M.J. Komen

^*Corresponding author for this work

Research output: Contribution to conference › Paper › peer-review

Abstract

The aim of our research work is to perform a high quality DNS of a simplified single phase pressurized thermal shock (PTS) scenario without buoyancy effects. This DNS will serve as a reference to validate low order CFD approaches, such as (U-) RANS and Hybrid (RANS/LES) methods. In this regard, an extensive research program has been carried out at NRG in order to facilitate the feasibility of generating such a high fidelity DNS database and their respective validations. The higher order spectral element code Nek5000 is selected in order to perform the high quality DNS computations. The capabilities of this code in order to perform the DNS for PTS like geometries have been extensively tested at NRG. The high fidelity database of the PTS design will include low and high order turbulence statistics. Moreover, a passive scalar approach has been used to simulate the iso-flux and iso-thermal boundary conditions.

Original language	English
State	Published - 2017
Externally published	Yes
Event	17th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2017 - Xi'an, Shaanxi, China Duration: 3 Sep 2017 → 8 Sep 2017

Conference

Conference	17th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2017
Country/Territory	China
City	Xi'an, Shaanxi
Period	3/09/17 → 8/09/17

Bibliographical note

Publisher Copyright:
© 2016 Association for Computing Machinery Inc. All Rights Reserved.

Keywords

DNS
Nek5000
Pressurized thermal shock
Thermal striping

ASJC Scopus subject areas

Nuclear Energy and Engineering
Instrumentation

Cite this

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title = "Towards the direct numerical simulation of a single phase pressurized thermal shock",

abstract = "The aim of our research work is to perform a high quality DNS of a simplified single phase pressurized thermal shock (PTS) scenario without buoyancy effects. This DNS will serve as a reference to validate low order CFD approaches, such as (U-) RANS and Hybrid (RANS/LES) methods. In this regard, an extensive research program has been carried out at NRG in order to facilitate the feasibility of generating such a high fidelity DNS database and their respective validations. The higher order spectral element code Nek5000 is selected in order to perform the high quality DNS computations. The capabilities of this code in order to perform the DNS for PTS like geometries have been extensively tested at NRG. The high fidelity database of the PTS design will include low and high order turbulence statistics. Moreover, a passive scalar approach has been used to simulate the iso-flux and iso-thermal boundary conditions.",

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author = "A. Shams and Komen, \{E. M.J.\}",

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T1 - Towards the direct numerical simulation of a single phase pressurized thermal shock

AU - Shams, A.

AU - Komen, E. M.J.

PY - 2017

Y1 - 2017

N2 - The aim of our research work is to perform a high quality DNS of a simplified single phase pressurized thermal shock (PTS) scenario without buoyancy effects. This DNS will serve as a reference to validate low order CFD approaches, such as (U-) RANS and Hybrid (RANS/LES) methods. In this regard, an extensive research program has been carried out at NRG in order to facilitate the feasibility of generating such a high fidelity DNS database and their respective validations. The higher order spectral element code Nek5000 is selected in order to perform the high quality DNS computations. The capabilities of this code in order to perform the DNS for PTS like geometries have been extensively tested at NRG. The high fidelity database of the PTS design will include low and high order turbulence statistics. Moreover, a passive scalar approach has been used to simulate the iso-flux and iso-thermal boundary conditions.

AB - The aim of our research work is to perform a high quality DNS of a simplified single phase pressurized thermal shock (PTS) scenario without buoyancy effects. This DNS will serve as a reference to validate low order CFD approaches, such as (U-) RANS and Hybrid (RANS/LES) methods. In this regard, an extensive research program has been carried out at NRG in order to facilitate the feasibility of generating such a high fidelity DNS database and their respective validations. The higher order spectral element code Nek5000 is selected in order to perform the high quality DNS computations. The capabilities of this code in order to perform the DNS for PTS like geometries have been extensively tested at NRG. The high fidelity database of the PTS design will include low and high order turbulence statistics. Moreover, a passive scalar approach has been used to simulate the iso-flux and iso-thermal boundary conditions.

KW - DNS

KW - Nek5000

KW - Pressurized thermal shock

KW - Thermal striping

UR - https://www.scopus.com/pages/publications/85052449262

M3 - Paper

AN - SCOPUS:85052449262

T2 - 17th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2017

Y2 - 3 September 2017 through 8 September 2017

ER -

Towards the direct numerical simulation of a single phase pressurized thermal shock

Abstract

Conference

Bibliographical note

Keywords

ASJC Scopus subject areas

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