Simulation of a Buoyancy Influenced Forced Fluid Flow Using a Finite Volume and a Finite Element Code
Simulation of a Buoyancy Influenced Forced Fluid Flow Using a Finite Volume and a Finite Element Code
Krepper, E.; Willschütz, H.G.; Weiß, F.P.
New reactor designs comprise passive elements for decay heat removal. ComputationalFluidDynamics codes are an appropriate tool for the assessment of the efficiency of those components. Most of these codes are based either on the FiniteVolume or the FiniteElement method. Because of the importance for reactor safety these numerical tools have to be thoroughly validated using results from experimental setups.
The governing mechanism in passive components for decay heat removal is natural convection and heat transfer with internal heating. To assess the capability describing mixed convection flow, post test calculations of an IAHR benchmark exercise were performed. The commercial codes CFX4® and ANSYS/FLOTRAN® were used, representing the FiniteVolume Method and the FiniteElement Method respectively.
This paper presents a discussion of the problems and capabilities of each code to calculate complex flow regimes and temperature fields.
Keywords: mixed convection flow; cfdcode simulation; CFX4.2; ANSYS/FLOTRAN

Lecture (Conference)
Eurotherm Seminar No. 63: Single and TwoPhase Natural Circulation, Genua, 6.8.9.1999, Proceedings edited by M. Misale and F. Mayinger, pp. 137143, ISBN 8890043318 
Contribution to proceedings
Eurotherm Seminar No. 63: Single and TwoPhase Natural Circulation, Genua, 6.8.9.1999, Proceedings edited by M. Misale and F. Mayinger, pp. 137143, ISBN 8890043318
Permalink: https://www.hzdr.de/publications/Publ2010
Publ.Id: 2010