0
ADDITIONAL TECHNICAL PAPERS

Two-Phase Eulerian/Lagrangian Model for Nucleating Steam Flow

[+] Author and Article Information
A. G. Gerber

Department of Mechanical Engineering, University of New Brunswick, Fredericton, N.B., Canada, E3B-5A3

J. Fluids Eng 124(2), 465-475 (May 28, 2002) (11 pages) doi:10.1115/1.1454109 History: Received April 14, 2000; Revised October 29, 2001; Online May 28, 2002
Copyright © 2002 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Schematic describing nucleating particle injection relative to flux-element and control-volume locations
Grahic Jump Location
Centerline nucleation rate, pressure, and wetness predictions using the Laval nozzle of Moore et al. 16 with one and eight droplets injected per flux-element
Grahic Jump Location
Centerline nucleation rate, pressure, and wetness predictions using the rotor tip profile of Bakhtar et al. 20 with one and eight droplets injected per flux-element
Grahic Jump Location
Centerline nucleation rate, pressure, and wetness predictions using the Laval nozzle of Moore et al. 16 with three levels of grid refinement
Grahic Jump Location
Finite-volume discretization within a finite-element representation of the geometry
Grahic Jump Location
Nucleation rate and Mach number obtained with the present model. Flow conditions are the same as that described for Fig. 7.
Grahic Jump Location
Comparison with 1-D nonequilibrium solution of Gyramathy and Meyer 1
Grahic Jump Location
Nonequilibrium solution compared with the equilibrium solution for the same nozzle and inflow conditions used by Gyramathy and Meyer 1
Grahic Jump Location
Centerline pressure levels in a condensing converging-diverging nozzle-present model compared to the results of Moore et al. 16
Grahic Jump Location
Centerline mass-averaged droplet size in a condensing converging-diverging nozzle-present model compared to the results of Moore et al. 16
Grahic Jump Location
Typical model predictions for nucleating flow over a two-dimensional rotor tip cascade (Bakhtar 2021). Flow conditions Po=0.999 bar,Ts(P)−Tg=10 K, and Pe=0.427 bar.
Grahic Jump Location
Total and static pressure profiles (for superheated and nucleating cases) before and after expansion through the rotor tip blade of Bakhtar et al. 2021. Flow conditions were Po=0.999 bar and Pe=0.427 bar with 20 K superheat and 10 K supercooling respectively at the inlet.
Grahic Jump Location
Component efficiency, enthalpy loss and exit droplet size over a range of inlet supercooling and expansion ratios compared to the experimental data of Bakhtar et al. 21
Grahic Jump Location
Low pressure turbine stage calculation results at mid-span. On the left the nucleation index (n=log10(J+1)) is shown with nmin=0,nmax=25 and Δn=2.5. On the right, supercooling (Tsc=Ts(P)−Tg) with Tsc,min=−10 K,Tsc,max=60 K and ΔTsc=5 K.
Grahic Jump Location
Low pressure turbine stage calculation results at mid-span. On the left the mass averaged droplet size is shown where rmin=0 μm,rmax=0.012 μm and Δr=0.001 μm. On the right, relative Mach number with Mmin=0,Mmax=1.4 and ΔM=0.1.
Grahic Jump Location
Low pressure turbine stage results showing nucleation index (n=log10(J+1)) near the shroud. Nucleation index is shown with nmin=0,nmax=25 and Δn=2.5.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In