Calculation of transient boiling flow in channels

Journal Article · Mon Jan 01 04:00:00 EST 1979 · J. Comput. Phys.; (United States)

DOI:https://doi.org/10.1016/0021-9991(79)90087-1· OSTI ID:6182526

Stewart, H B

A new method of calculating transient two-phase flow is presented, based on a modification of the implicit multifield (IMF) method, and is applied to channel boiling. The two-phase two-fluid approach allows flexibility in physically modelling different flow regimes. The numerical finite difference method treats the vapor phase more implicitly than does IMF. Detailed analysis of the incremental pressure iterations in the implicit cycle of each time step shows that the new pressure profile satisfies approximately a discrete elliptic boundary value problem, with adjacent nodes strongly coupled if the time step is large. By accounting for this, order-of-magnitude gains in computation time have been achieved.

• Research Organization: Commissariat a l'Energie Atomique, CEN de Saclay, SERMA, B. P. N 2, 91190 Gif-sur-Yvette, France
• OSTI ID: 6182526
• Journal Information: J. Comput. Phys.; (United States), Journal Name: J. Comput. Phys.; (United States) Vol. 30:1; ISSN JCTPA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
BOILING
CALCULATION METHODS
FLUID FLOW
LIQUID METAL COOLED REACTORS
PHASE TRANSFORMATIONS
REACTOR CHANNELS
REACTOR COMPONENTS
REACTORS
SODIUM COOLED REACTORS
TRANSIENTS
TWO-PHASE FLOW