Three Experiments in Natural Convection.
COLORADO STATE UNIV FORT COLLINS DEPT OF MECHANICAL ENGINEERING
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The report presents detailed summaries of three experimental theses written at Colorado State University in connection with ongoing work on natural convection in doubly-diffusive media. Chapter 1 deals with the turbulent natural-convection heat flux through two liquid layers which are artificially and permanently stratified by density difference. A predictive model is advanced and tested against experimental data. The second chapter discusses experiments on the heat transfer from circular disks at the bottoms of the large tanks. Both the laminar and turbulent flow regimes are considered, and heat-transfer correlations are obtained. An uncorrelated effect of source diameter is noted and discussed. The third chapter treats mainly on the transport of heat and salt across turbulently convecting layers of salt water bounded above and below by thick, stable thermoclines. Both temperature and concentration are made to decrease upward in a steady or nearly steady experiment, and measurements are made of the flows of heat and salt. Observations are made of the properties of the thermoclines and of the convecting layers, and comparisons are made with the limited number of theoretical predictions currently available. Author
- Physical and Dynamic Oceanography
- Fluid Mechanics