Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-22T10:12:37.644Z Has data issue: false hasContentIssue false
  • English
  • Français

High resolution computation of compressible condensing/evaporating moist-air flow for external and internal flows

Published online by Cambridge University Press:  27 January 2016

S. Hamidi  and
M. J. Kermani
S. Hamidi*
Affiliation:
Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
M. J. Kermani*
Affiliation:
Department of Mechanical Engineering, Amirkabir University of TechnologyTehran, Iran
*
[email protected]
[email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

In this paper computation of high resolution, compressible condensing/evaporating moist-air flow for a series of two-dimensional internal and external flows is performed. It has been observed that the inflow wetness content can change the aerothermodynamics of the flow field, e.g. the shock angles. In the case of flow expansion through nozzles, it has also been observed that the content of wetness at nozzles exit in the case of moist-air is more than five times higher than that of pure steam under similar operating conditions. The reason is due to the internal flow of heat from steam portion toward air that accelerates the steam condensation rate. The solver is spatially third- and temporally second-order accurate. Validations of the numerical code are performed versus the experimental data of Moore et al (1973) in the case of very large humidity ratio, ω→∞ (pure steam). Also in the case of low humidity ratio, ω→0 (dry air), the exact solution of shock tube and wedge cases are used to validate our numerical results.

Type
Research Article
Information
The Aeronautical Journal , Volume 117 , Issue 1190 , April 2013 , pp. 427 - 444
Copyright
Copyright © Royal Aeronautical Society 2013 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Alam, M., Naser, J., Brooks, G. and Fontana, A. Computational fluid dynamics modeling of supersonic coherent jets for electric arc furnace steelmaking process, Metallurgical and Materials Transactions B, December 2010, 41, pp 1354–1367.Google Scholar
2. Alam, M., Irons, G., Brooks, G., Fontana, A. and Naser, J. Inclined jetting and splashing in electric arc furnace steelmaking, ISIJ Int, 2011, 51, (9), pp 1439–1447.Google Scholar
3. Moore, M.J., Walters, P.T., Crane, R.I. and Davidson, B.J. Predicting the fog drop size in wet steam turbines, 1973, Institute of Mechanical Engineers (UK), Wet Steam 4 Conference, University of Warwick, paper C37/73.Google Scholar
4. Chung, T.J. Computational Fluid Dynamics, 2002, Cambridge University Press.Google Scholar
5. Hirsch, C. Numerical Computation of Internal and External flows, Volume 1 (Fundamentals of Computational Fluid Dynamics), 1990, John Wiley & Sons.Google Scholar
6. Bakhtar, F. and Zidi, K. Nucleation phenomena in flowing high-pressure steam: experimental results, Proc Inst Mech Eng, 1989, 203, pp 195–200.Google Scholar
7. Bakhtar, F. and Zidi, K. Nucleation phenomena in flowing high-pressure steam, Part 2: Theoretical analysis, Proc Inst Mech Eng, 1990, 204, pp 233–242.Google Scholar
8. Bakhtar, F., Ryley, D.J., Tubman, K.A. and Young, J.B. Nucleation studies in flowing high pressure steam, Inst Mech Eng, 1975, 189, pp 427–436.Google Scholar
9. Kermani, M.J. and Gerber, A.G. A general formula for the evaluation of thermodynamic and aerodynamic losses in nucleating steam flow, Int J Heat and Mass Transfer, 2003, 46, pp 3265–3278.Google Scholar
10. Gerber, A.G. and Kermani, M.J. A pressure based Eulerian–Eulerian multi-phase model for non-equilibrium condensation in transonic steam flow, Int J Heat and Mass Transfer, 2004, 47, pp 2217–2231.Google Scholar
11. Kermani, M.J., Gerber, A.G. and Stockie, J.M. An application of Roes high resolution scheme to transonic two-phase flow through nozzles, Iranian J Mech Eng: Transaction of the ISME, 2006, 7, (1), pp 60–77.Google Scholar
12. Zayernouri, M. and Kermani, M.J. Development of an analytical solution for compressible two-phase steam flow, Canadian J Mech Eng: Transaction of the CSME, 2006.Google Scholar
13. Pouring, A.A. An Experimental and Analytic Investigation of Homogeneous Condensation of Water Vapor in Air during Rapid Expansions, 1963, PhD thesis, Yale University.Google Scholar
14. Schnerr, G. 2-D Transonic flow with energy supply by homogeneous condensation onset condition and 2-D structure of steady laval nozzle flow, Experiments in Fluids, 1989, 7, pp 145–156.Google Scholar
15. Yamamoto, S. Preconditioning method for condensate fluid and solid coupling problems in general curvilinear coordinates. J Computational Physics, 2005, 207, pp 240–260.Google Scholar
16. Sakakura, K. and Yamamoto, S. Numerical and experimental predictions of heterogeneous condensate flow of moist air in cooled pipe, Int J of Heat and Fluid Flow, 2006, 27, pp 220–228.Google Scholar
17. Roe, P.L. Approximate Riemann solvers, parameter vectors and difference schemes, J Comput Phys, 1981, 43, pp 357–372.Google Scholar
18. van Albada, G.D., van Leer, B. and Roberts, W.W. A comparative study of computational methods in cosmic gas dynamics, Astron Astrophys, 1982, 108, pp 76–84.Google Scholar
19. Kermani, M.J. and Plett, E.G. Modified entropy correction formula for the Roe scheme, AIAA Paper, 2001, #2001-0083.Google Scholar
20. Kermani, M.J. and Plett, E.G. Roe scheme in generalized coordinates: Part I Formulations, AIAA Paper, 2001, #2001-0086.Google Scholar
21. Kermani, M.J. and Plett, E.G. Roe scheme in generalized coordinates: Part II — Application to inviscid and viscous flows, AIAA Paper, 2001, #2001-0087.Google Scholar
22. van Leer, B. Towards the ultimate conservation difference scheme, V, A second order sequel to Godunov’s method, J Comput Phys, 1979, 32, pp 110–136.Google Scholar
23. Thomas, J.L. and Walters, R.W. Upwind relaxation algorithms for Navier-Stokes equations, AIAA J, 1987, 25, pp 527–537.Google Scholar
24. Khakbaz Baboli, M. and Kermani, M.J. A two-dimensional, transient, compressible isothermal and two-phase model for the air-side electrode of PEM fuel cells, Electrochimica Acta, 2008, 53, pp 7644–7654.Google Scholar
25. Moran, M.J. and Shapiro, H.N. Fundamentals of Engineering Thermodynamics, Fourth Edition, John Wiley & Sons, 1998.Google Scholar