Pressure drop in a prototypical 3D magnetohydrodynamic flow across contraction of a fusion blanket manifold

Rhodes, Tyler; Smolentsev, Sergey

doi:10.1080/00223131.2021.1892550

Title: Pressure drop in a prototypical 3D magnetohydrodynamic flow across contraction of a fusion blanket manifold

Journal Article · Thu Mar 04 00:00:00 EST 2021 · Journal of Nuclear Science and Technology (Tokyo)

DOI:https://doi.org/10.1080/00223131.2021.1892550· OSTI ID:1773976

Rhodes, Tyler ^[1]; Smolentsev, Sergey ^[1]

Univ. of California, Los Angeles, CA (United States)

Predicting 3D magnetohydrodynamic (MHD) pressure losses associated with liquid metal flows in complex geometry ducts is required to design breeding blankets for fusion reactors. Of such components, manifolds exhibit major pressure losses. Recent correlations [T. Rhodeset al. Magnetohydrodynamic pressure drop and flow balancing of liquid metal flow in a prototypic fusion blanket manifold. Phys. Fluids. 2018; 30: 057101.] demonstrate promise for predicting pressure drops in electrically insulated inlet manifolds. In the present work, the extend to which these correlations can be applied to outlet manifolds, which feature sudden contractions, is investigated in both viscous-electromagnetic (VE) and inertial-electromagnetic (IE) regimes for Reynolds numbers 50 < Re < 1500, Hartmann numbers 2500 < Ha < 5475, and expansion/contraction ratio 10. Numerical computations have shown that the MHD pressure drops in the eutectic lead-lithium (PbLi) flows in contractions are almost identical to those in the flows featuring expansion with slightly higher magnitudes in the contraction cases. The small discripancy in the MHD pressure drop between contractions and expansions (<8%) suggests that the earlier obtained correlations for the 3D MHD pressure drop in a duct flow with a sudden expansion can also be applied to flows with a sudden contraction.

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Research Organization:: Univ. of California, Los Angeles, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Grant/Contract Number:: SC0020979

OSTI ID:: 1773976

Journal Information:: Journal of Nuclear Science and Technology (Tokyo), Vol. 58, Issue 8; ISSN 0022-3131

Publisher:: Taylor & FrancisCopyright Statement

Country of Publication:: United States

Language:: English

References (17)

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Title: Pressure drop in a prototypical 3D magnetohydrodynamic flow across contraction of a fusion blanket manifold

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