@Article{IJNAMB-3-259,
author = {K. ARUL PRAKASH, B. V. RATHISH KUMAR, AND GAUTAM BISWAS},
title = {Parallel Numerical Simulation of Conjugate Heat Transfer in the Target System of an Ads by Domain De},
journal = {International Journal of Numerical Analysis Modeling Series B},
year = {2012},
volume = {3},
number = {3},
pages = {259--269},
abstract = {Accelerator Driven Sub-critical nuclear reactor System (ADS) are envisaged to enhance neutronics of reactors as well as safety physics. The spallation target module or target
system is the most innovative and key component for an ADS. In the target module, a high energy
proton beam from the accelerator irradiates a heavy metal target like Lead Bismuth Eutectic
(LBE) to produce spallation neutrons, which initiate the fission reaction in the sub-critical core.
The removal of the spallation heat by the same LBE is a challenging thermal-hydraulic issue. Also
the presence of any recirculation or stagnation zones of LBE in the flow path may lead to local hot
spots either in the window or in the flowing liquid metal which is detrimental to the performance
of the target. The beam window, a physical barrier separating the liquid metal (LBE) from the
proton beam, is a critical component as it is subject to high heat fluxes as well as thermal and
mechanical stresses. In addition to heat deposited in the bulk of LBE in the spallation region,
large amount of heat also gets deposited on the window. To incorporate the physical situation in
a more realistic way, a conjugate heat transfer problem (solving the conduction equation of the
beam window in conjunction with the energy equation) is accomplished. As the conjugate heat
transfer problem is found to be computationally very demanding, the energy equation module is
parallelized following the paradigm of domain decomposition method using MPI (Message passing
Interface) library. In this study, the equations governing the axisymmetric flow and thermal energy
are solved numerically using a Streamline Upwind Petrov-Galerkin (SUPG) Finite Element
(FE) method. The turbulent kinetic energy and its dissipation rate are modeled using k-$\in$ model
with standard wall function approach. The interface temperature as a result of conjugate heat
transfer and Nusselt number distribution at the interface with a reasonable speedup is computed
and quantified.},
issn = {},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/ijnamb/282.html}
}