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Integral equation formulation for buoyancy-driven convection problems

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Abstract

An integral equation formulation for buoyancy-driven convection problems is developed and illustrated. Buoyancy-driven convection in a bounded cylindrical geometry with a free surface is studied for a range of aspect ratios and Nusselt numbers. The critical Rayleigh number, the nature of the cellular motion, and the heat transfer enhancement are computed using linear theory. Green's functions are used to convert the linear problem into linear Fredholm integral equations. Theorems are proved which establish the properties of the eigenvalues and eigenfunctions of the linear integral operator which appears in these equations.

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References

  1. Agrawal SS (1980) Nonlinear free surface convection in a bounded cylindrical geometry. PhD Thesis, Illinois Institute of Technology

  2. Bentwich M (1971) Buoyancy and surface-tension induced instabilities of fluid in open and closed vertical cylindrical containers. Appl Sci Res 24:305–328

    Google Scholar 

  3. Birkhoff GD (1908) Boundary value and expansion problems of ordinary linear differential equations. Trans Amer Math Soc 9:373–395

    Google Scholar 

  4. Catton I (1972) The effect of insulating vertical walls on the onset of motion in a fluid heated from below. Int J Heat Mass Transfer 15:665–672

    Article  Google Scholar 

  5. Charlson GS and Sani RL (1970) Thermoconvective instability in a bounded cylindrical fluid layer. Int J Heat Mass Transfer 13:1479–1496

    Article  Google Scholar 

  6. Churchill RV (1963) Fourier series and boundary value problems. McGraw-Hill

  7. Davis SH (1967) Convection in a box: linear theory. J Fluid Mech 30:465–478

    Google Scholar 

  8. Duda JL and Vrentas JS (1971) Steady flow in the region of closed streamlines in a cylindrical cavity. J Fluid Mech 45:247–260

    Google Scholar 

  9. Hoard CQ, Robertson CR and Acrivos A (1970) Experiments on the cellular structure in Bénard convection. Int J Heat Mass Transfer 13:849–856

    Article  Google Scholar 

  10. Joseph DD (1971) Stability of convection in containers of arbitrary shape. J Fluid Mech 47:257–282

    Google Scholar 

  11. Kirchgässner K and Sorger P (1969) Branching analysis for the Taylor problem. Quart J Mech Appl Math 22:183–209

    Google Scholar 

  12. Koschmieder EL (1974) Bénard convection. Adv Chem Phys 26:177–212

    Google Scholar 

  13. Kurzweg UH (1965) Convective instability of a hydromagnetic fluid within a rectangular cavity. Int J Heat Mass Transfer 8:35–41

    Article  Google Scholar 

  14. Naimark MA (1967) Linear differential operators, Part I. Ungar Publishing Co

  15. Nield DA (1964) Surface tension and buoyancy effects in cellular convection. J Fluid Mech 19:341–352

    Google Scholar 

  16. Palm E (1975) Nonlinear thermal convection. Ann Rev Fluid Mech 7:39–61

    Article  Google Scholar 

  17. Pellew A and Southwell RV (1940) On maintained convective motion in a fluid heated from below. Proc R Soc 176A:312–343

    Google Scholar 

  18. Peters G and Wilkinson JH (1970) Eigenvectors of real and complex matrices by LR and QR triangularizations. Num Mathematik 16:181–204

    Google Scholar 

  19. Rogers RH (1976) Convection. Rep prog Phys 39:1–63

    Article  Google Scholar 

  20. Schlüter A, Lortz D and Busse F (1965) On the stability of steady finite amplitude convection. J Fluid Mech 23:129–144

    Google Scholar 

  21. Stakgold I (1979) Green's functions and boundary value problems. Wiley

  22. Vrentas JS, Narayanan R and Agrawal SS (1981) Free surface convection in a bounded cylindrical geometry. Int J Heat Mass Transfer 24:1513–1529

    Article  Google Scholar 

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Vrentas, J., Vrentas, C., Narayanan, R. et al. Integral equation formulation for buoyancy-driven convection problems. Applied Scientific Research 39, 277–299 (1982). https://doi.org/10.1007/BF00389266

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