Effects of Straits on Hydro-Thermal Performance of Small Bays

Öz

The heated surface jet discharged into a bay which is connected to a larger body of water through a strait may experience bifurcation in the bay and stratification in the strait. The combined effects of bifurcation and stratification may lead to a substantially greater rise in temperature than the rise expected in case of unrestricted receiving body of water. In this study, the behavior of heated effluents discharged into bays with a restricted access to a large body of water is scrutinized experimentally by the help of a scaled physical model.Dimensional analysis leads to a new dimensionless parameter Ar, area restriction parameter, on which the difference between the excess temperatures at the inlet of the strait for restricted and free receiving mediums, Δ(ΔT/ΔT₀) is shown to be strongly dependent.  

Anahtar Kelimeler

• Heated effluents,surface jets,excess heat

Kaynakça

1. Ryan, P. J., and Harleman, D. R. F., An Analytical and Experimental Study of Transient Cooling Pond Behaviour, R. M. Parsons Lab. for Water Resources and Hydrodynamics, Dept. of Civil Engineering, MIT, USA, Technical Report No. 161, 1973
2. Adams, E. E., Stolzenbach, K. D., and Harleman, D. R. F., Near and Far Field Analysis of Buoyant Surface Jets, R. M. Parsons Lab. for Water Resources and Hydrodynamics, Dept. of Civil Engineering, MIT, USA, Technical Report No. 205, 1975
3. Stefan, H., Dilution of Buoyant Two-Dimensional Surface Discharges, J. of Hydraulic Division, ASCE, Vol. 98, HY1, 71-86, 1970
4. Stefan, H., Heated Dicharge from a Flume into a Tank, J. of Hydraulic Division, ASCE, Vol. 98, SA6, 1416-1432, 1970
5. Turner, J. S., Buoyancy Effects in Fluids, Cambridge Univ. Press, 1973
6. Policastro, A. J. and Tokar, J. V., Heated Effluent Dispersion in Lakes: State of the Art of Analytical Modelling Part 1: Critique of Model Formulation, Report No: ANL/ES-11, Aragone National Lab., 1972
7. Stolzenbach, K. D. and Harleman, D. R. F., An Analytical and Experimental Investıgation of Surface Discharges of Heated Water, R. M. Parsons Lab. for Water Resources and Hydrodynamics, Dept. of Civil Engineering, MIT, USA, Technical Report No. 135, 1971
8. Nalbantoğlu, A. E., Hydro-Thermal Performance of Small Bays, Unpublished M.S. Thesis, Civil Engineering Dept., METU, May 1980

9. Ger, A. M., Effects of Jets on the Behaviour of Heated Surface Jets, 20th Midwestern Mechanics Conf., Proc. 14b, West Lafeyette, Indiana, 1987