Combined Eulerian-Lagrangian analysis for computation of two-phase flows
A combined Eulerian-Lagrangian analysis, which combines a linearized block implicit Navier-Stokes analysis for the continuous phase with a Lagrangian analysis for the motion of the droplet phase to simulate evaporating two-phase flows, has been developed. A unique aspect of this analysis is that the Lagrangian equations for the droplet motion have been transformed into the Eulerian computational space using coordinate transformation resulting in better computational efficiency. Use of the present implicit procedure for the continuous phase makes it possible to efficiently use a locally highly refined mesh. The coupling of the continuous phase and the droplet phase analyses is such that it allows the use of convergence acceleration techniques for steady-state problems, as well as making it possible to simulate transient flows. A rapidly evaporating two-phase flow caused by spray of liquid nitrogen in gaseous nitrogen has been used as a test problem to demonstrate the computer code using this analysis. 14 references.
- Research Organization:
- Scientific Research Associates, Inc., Glastonbury, CT
- OSTI ID:
- 6384555
- Report Number(s):
- AIAA-Paper-87-1419; CONF-870622-
- Journal Information:
- AIAA J.; (United States), Journal Name: AIAA J.; (United States); ISSN AIAJA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420200* -- Engineering-- Facilities
Equipment
& Techniques
DIFFERENTIAL EQUATIONS
DROPLETS
EQUATIONS
EVAPORATION
FLUID FLOW
FLUID INJECTION
FLUID MECHANICS
LAGRANGE EQUATIONS
MECHANICS
NAVIER-STOKES EQUATIONS
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLES
PHASE TRANSFORMATIONS
SIMULATION
TWO-PHASE FLOW