Large Eddy Simulation of the Flow Behavior in a Simplified Helical Coil Steam Generator
Abstract
Large eddy simulation (LES) is conducted for the flow over the shell side of a helical coil steam generator (HCSG) heat exchanger. Simulations are conducted on a simplified experimental test section that represents a one-column region of the helical coils using half-rods. Although the rods are wall-bounded, the flow still exhibits the turbulent characteristics and fluctuations from vortex shedding that one would expect from crossflow around a cylinder. The spectral element, computational fluid dynamics (CFD) code Nek5000, is used to capture the physics, and the results are compared with particle image velocimetry (PIV) measurements. In order to ensure that the turbulence is resolved, analysis is conducted by using the Taylor length scales and normalized wall distance. Sensitivity to the inlet boundary conditions (BCs) and the spatial discretization for different polynomial order solutions are also studied, finding only minor differences between each case. Pressure drop and velocity statistics show reasonable agreement with PIV. Proper orthogonal decomposition (POD) analysis reveals that the primary modes are similar between experiment and simulation, although the LES predicts higher turbulent kinetic energy than does PIV. Overall, the study establishes the resolution and resources required in order to conduct a high-fidelity simulation over 12 helical rods.
- Authors:
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Nuclear Energy - Nuclear Energy Advanced Modeling and Simulation (NEAMS)
- OSTI Identifier:
- 1510022
- DOE Contract Number:
- AC02-06CH11357
- Resource Type:
- Journal Article
- Journal Name:
- Journal of Fluids Engineering
- Additional Journal Information:
- Journal Volume: 141; Journal Issue: 2
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Lai, Jonathan K., Merzari, Elia, and Hassan, Yassin A. Large Eddy Simulation of the Flow Behavior in a Simplified Helical Coil Steam Generator. United States: N. p., 2019.
Web. doi:10.1115/1.4040464.
Lai, Jonathan K., Merzari, Elia, & Hassan, Yassin A. Large Eddy Simulation of the Flow Behavior in a Simplified Helical Coil Steam Generator. United States. doi:10.1115/1.4040464.
Lai, Jonathan K., Merzari, Elia, and Hassan, Yassin A. Fri .
"Large Eddy Simulation of the Flow Behavior in a Simplified Helical Coil Steam Generator". United States. doi:10.1115/1.4040464.
@article{osti_1510022,
title = {Large Eddy Simulation of the Flow Behavior in a Simplified Helical Coil Steam Generator},
author = {Lai, Jonathan K. and Merzari, Elia and Hassan, Yassin A.},
abstractNote = {Large eddy simulation (LES) is conducted for the flow over the shell side of a helical coil steam generator (HCSG) heat exchanger. Simulations are conducted on a simplified experimental test section that represents a one-column region of the helical coils using half-rods. Although the rods are wall-bounded, the flow still exhibits the turbulent characteristics and fluctuations from vortex shedding that one would expect from crossflow around a cylinder. The spectral element, computational fluid dynamics (CFD) code Nek5000, is used to capture the physics, and the results are compared with particle image velocimetry (PIV) measurements. In order to ensure that the turbulence is resolved, analysis is conducted by using the Taylor length scales and normalized wall distance. Sensitivity to the inlet boundary conditions (BCs) and the spatial discretization for different polynomial order solutions are also studied, finding only minor differences between each case. Pressure drop and velocity statistics show reasonable agreement with PIV. Proper orthogonal decomposition (POD) analysis reveals that the primary modes are similar between experiment and simulation, although the LES predicts higher turbulent kinetic energy than does PIV. Overall, the study establishes the resolution and resources required in order to conduct a high-fidelity simulation over 12 helical rods.},
doi = {10.1115/1.4040464},
journal = {Journal of Fluids Engineering},
number = 2,
volume = 141,
place = {United States},
year = {2019},
month = {2}
}
DOI: 10.1115/1.4040464
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Works referenced in this record:
Spectral methods for problems in complex geometries
journal, August 1980
- Orszag, Steven A.
- Journal of Computational Physics, Vol. 37, Issue 1
The Proper Orthogonal Decomposition in the Analysis of Turbulent Flows
journal, January 1993
- Berkooz, G.; Holmes, P.; Lumley, J. L.
- Annual Review of Fluid Mechanics, Vol. 25, Issue 1
Direct Numerical Simulation of Pebble Bed Flows: Database Development and Investigation of Low-Frequency Temporal Instabilities
journal, February 2017
- Fick, Lambert H.; Merzari, Elia; Hassan, Yassin A.
- Journal of Fluids Engineering, Vol. 139, Issue 5
Large-scale large eddy simulation of nuclear reactor flows: Issues and perspectives
journal, February 2017
- Merzari, Elia; Obabko, Aleks; Fischer, Paul
- Nuclear Engineering and Design, Vol. 312
Development of heat transfer coefficient correlation for concentric helical coil heat exchanger
journal, December 2009
- Kharat, Rahul; Bhardwaj, Nitin; Jha, R. S.
- International Journal of Thermal Sciences, Vol. 48, Issue 12
Numerical Simulation and Proper Orthogonal Decomposition of the Flow in a Counter-Flow T-Junction
journal, July 2013
- Merzari, E.; Pointer, W. D.; Fischer, P.
- Journal of Fluids Engineering, Vol. 135, Issue 9
Effect of Location in an Array on Heat Transfer to a Short Cylinder in Crossflow
journal, February 1984
- Simoneau, R. J.; VanFossen, G. J.
- Journal of Heat Transfer, Vol. 106, Issue 1
Two circular cylinders in cross-flow: A review
journal, August 2010
- Sumner, D.
- Journal of Fluids and Structures, Vol. 26, Issue 6
Heat transfer correlation between Molten Salts and helical-coil tube bundle Steam Generator
journal, February 2016
- Rivas, Esther; Rojas, Esther
- International Journal of Heat and Mass Transfer, Vol. 93
The Law of the Wall in Turbulent Flow
journal, October 1995
- Bradshaw, P.; Huang, G. P.
- Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 451, Issue 1941
Comparison of heat transfer rates between a straight tube heat exchanger and a helically coiled heat exchanger
journal, February 2002
- Prabhanjan, D. G.; Raghavan, G. S. V.; Rennie, T. J.
- International Communications in Heat and Mass Transfer, Vol. 29, Issue 2
A synthetic-eddy-method for generating inflow conditions for large-eddy simulations
journal, August 2006
- Jarrin, N.; Benhamadouche, S.; Laurence, D.
- International Journal of Heat and Fluid Flow, Vol. 27, Issue 4
Flow-induced vibration analysis of a helical coil steam generator experiment using large eddy simulation
journal, October 2017
- Yuan, Haomin; Solberg, Jerome; Merzari, Elia
- Nuclear Engineering and Design, Vol. 322
Flow visualization study at the interface of alternating pitch tube bundles in a model helical coil steam generator using particle image velocimetry
journal, July 2018
- Delgado, M.; Lee, S.; Hassan, Y. A.
- International Journal of Heat and Mass Transfer, Vol. 122
The design and safety features of the IRIS reactor
journal, May 2004
- Carelli, Mario D.; Conway, L. E.; Oriani, L.
- Nuclear Engineering and Design, Vol. 230, Issue 1-3
Experimental and CFD estimation of heat transfer in helically coiled heat exchangers
journal, March 2008
- Jayakumar, J. S.; Mahajani, S. M.; Mandal, J. C.
- Chemical Engineering Research and Design, Vol. 86, Issue 3
Balanced Model Reduction via the Proper Orthogonal Decomposition
journal, November 2002
- Willcox, K.; Peraire, J.
- AIAA Journal, Vol. 40, Issue 11
LES of turbulent jet in cross flow: Part 2 – POD analysis and identification of coherent structures
journal, August 2012
- Cavar, Dalibor; Meyer, Knud Erik
- International Journal of Heat and Fluid Flow, Vol. 36