Theoretical study of mixed convection in poloidal flows of dcll blanket

N. Vetcha; S. Smolentsev; M. Abdou

doi:10.13182/FST56-851

Theoretical study of mixed convection in poloidal flows of dcll blanket

N. Vetcha, S. Smolentsev, M. Abdou

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

An approach is developed to study the stability of mixed convection in the poloidal flows of the DCLL blanket. Modified Orr-Sommerfeld equations are derived and then solved using a numerical code based on a pseudo-spectral method. The stability analysis has been performed for the flows in the front blanket ducts, where the forced flow is upwards; showing that in the DCLL blanket conditions, all disturbances associated with the buoyant flows in the front ducts will likely be damped by a strong toroidal magnetic field.

Original language	English
Pages (from-to)	851-855
Number of pages	5
Journal	Fusion Science and Technology
Volume	56
Issue number	2
DOIs	https://doi.org/10.13182/FST56-851
State	Published - Aug 2009
Externally published	Yes

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AU - Abdou, M.

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N2 - An approach is developed to study the stability of mixed convection in the poloidal flows of the DCLL blanket. Modified Orr-Sommerfeld equations are derived and then solved using a numerical code based on a pseudo-spectral method. The stability analysis has been performed for the flows in the front blanket ducts, where the forced flow is upwards; showing that in the DCLL blanket conditions, all disturbances associated with the buoyant flows in the front ducts will likely be damped by a strong toroidal magnetic field.

AB - An approach is developed to study the stability of mixed convection in the poloidal flows of the DCLL blanket. Modified Orr-Sommerfeld equations are derived and then solved using a numerical code based on a pseudo-spectral method. The stability analysis has been performed for the flows in the front blanket ducts, where the forced flow is upwards; showing that in the DCLL blanket conditions, all disturbances associated with the buoyant flows in the front ducts will likely be damped by a strong toroidal magnetic field.

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Theoretical study of mixed convection in poloidal flows of dcll blanket

Abstract

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