Numerical simulation of mixing buoyant jets: Preliminary studies

Diego Angeli; Andrea Cimarelli; Andrea Fregni; Enrico Stalio; Afaque Shams; Ferry Roelofs

Numerical simulation of mixing buoyant jets: Preliminary studies

Diego Angeli, Andrea Cimarelli, Andrea Fregni, Enrico Stalio, Afaque Shams, Ferry Roelofs

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

4 Scopus citations

Abstract

Preliminary numerical analyses are reported for the case of three vertical planar mixing jets at different temperatures, in view of a forthcoming reference DNS to be performed in the frame of the SESAME European project. The reference case stems from the well-known PLAJEST triple jet experiment, but with a relative increase of the buoyancy effect, achieved by reducing the Reynolds number by a factor 5. Pre-production DNS runs for the reference case and a complementary RANS parametric analysis with varying Prandtl and Richardson numbers are carried out, highlighting that a suitable configuration for a benchmark can be obtained with a hotter central jet and colder lateral jets.

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

Buoyancy
High-fidelity simulations
Liquid metal fast reactors
Mixing jets

ASJC Scopus subject areas

Nuclear Energy and Engineering
Instrumentation

Cite this

@conference{4d2de58ec73a421e9b011ad45a922afc,

title = "Numerical simulation of mixing buoyant jets: Preliminary studies",

abstract = "Preliminary numerical analyses are reported for the case of three vertical planar mixing jets at different temperatures, in view of a forthcoming reference DNS to be performed in the frame of the SESAME European project. The reference case stems from the well-known PLAJEST triple jet experiment, but with a relative increase of the buoyancy effect, achieved by reducing the Reynolds number by a factor 5. Pre-production DNS runs for the reference case and a complementary RANS parametric analysis with varying Prandtl and Richardson numbers are carried out, highlighting that a suitable configuration for a benchmark can be obtained with a hotter central jet and colder lateral jets.",

keywords = "Buoyancy, High-fidelity simulations, Liquid metal fast reactors, Mixing jets",

author = "Diego Angeli and Andrea Cimarelli and Andrea Fregni and Enrico Stalio and Afaque Shams and Ferry Roelofs",

note = "Publisher Copyright: {\textcopyright} 2016 Association for Computing Machinery Inc. All Rights Reserved.; 17th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2017 ; Conference date: 03-09-2017 Through 08-09-2017",

year = "2017",

language = "English",

}

TY - CONF

T1 - Numerical simulation of mixing buoyant jets

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

AU - Angeli, Diego

AU - Cimarelli, Andrea

AU - Fregni, Andrea

AU - Stalio, Enrico

AU - Shams, Afaque

AU - Roelofs, Ferry

PY - 2017

Y1 - 2017

N2 - Preliminary numerical analyses are reported for the case of three vertical planar mixing jets at different temperatures, in view of a forthcoming reference DNS to be performed in the frame of the SESAME European project. The reference case stems from the well-known PLAJEST triple jet experiment, but with a relative increase of the buoyancy effect, achieved by reducing the Reynolds number by a factor 5. Pre-production DNS runs for the reference case and a complementary RANS parametric analysis with varying Prandtl and Richardson numbers are carried out, highlighting that a suitable configuration for a benchmark can be obtained with a hotter central jet and colder lateral jets.

AB - Preliminary numerical analyses are reported for the case of three vertical planar mixing jets at different temperatures, in view of a forthcoming reference DNS to be performed in the frame of the SESAME European project. The reference case stems from the well-known PLAJEST triple jet experiment, but with a relative increase of the buoyancy effect, achieved by reducing the Reynolds number by a factor 5. Pre-production DNS runs for the reference case and a complementary RANS parametric analysis with varying Prandtl and Richardson numbers are carried out, highlighting that a suitable configuration for a benchmark can be obtained with a hotter central jet and colder lateral jets.

KW - Buoyancy

KW - High-fidelity simulations

KW - Liquid metal fast reactors

KW - Mixing jets

UR - https://www.scopus.com/pages/publications/85052490690

M3 - Paper

AN - SCOPUS:85052490690

Y2 - 3 September 2017 through 8 September 2017

ER -

Numerical simulation of mixing buoyant jets: Preliminary studies

Abstract

Conference

Bibliographical note

Keywords

ASJC Scopus subject areas

Fingerprint

Cite this