Mixing depth of a submerged, horizontally injected buoyant jet
Tests in the laboratory were conducted to determine the effective mixing depth of turbulent buoyant fluid injected horizontally into an initially unstratified environment through a radial, deeply submerged diffuser. The diffuser was moved slowly during the experiments, at a rate much smaller than the entrainment and mixing process. The effective mixing depth is defined as the relative position between the initial injector level and the lowest position of the resulting mixed layer over which the injected fluid is deposited. Results have applications to discharge of contaminants and heat into large reservoirs (sewage disposal, power plants, OTEC systems) and establishment of a stratified region as is required for operation of salt gradient solar ponds. A functional dependence between mixing depth, scaled by the injector slot-size, and injector Froude number was found. Dependence on submergence was not found for the large submergence values tested; dependence on diffuser radius was not investigated. The laboratory data compare well with results obtained in a reservoir of 3355 m/sup 2/ surface area and indicate a strong dependence of effective mixing depth on the Froude number.
- Research Organization:
- F and D Associates, Ltd., 732 North Stone Ave., Tucson, AZ (US)
- OSTI ID:
- 6674370
- Journal Information:
- J. Sol. Energy Eng.; (United States), Journal Name: J. Sol. Energy Eng.; (United States) Vol. 110:2; ISSN JSEED
- Country of Publication:
- United States
- Language:
- English
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BUOYS
CALCULATION METHODS
CONVERSION
DATA
ENERGY CONVERSION
EQUIPMENT
EXPERIMENTAL DATA
FLUID FLOW
FLUID INJECTION
FLUID MECHANICS
FROUDE NUMBER
INFORMATION
MANAGEMENT
MECHANICS
NUMERICAL DATA
OCEAN THERMAL ENERGY CONVERSION
PONDS
SCALE MODELS
SEWAGE
SEWAGE SLUDGE
SLUDGES
SOLAR COLLECTORS
SOLAR ENERGY CONVERSION
SOLAR EQUIPMENT
SOLAR PONDS
STRUCTURAL MODELS
SURFACE WATERS
TURBULENT FLOW
WASTE MANAGEMENT
WASTES