Water temperature effects on horizontal buoyant submerged jets. Research report

Technical Report · Thu Sep 01 04:00:00 EDT 1977

OSTI ID:5395706

Riester, J B; Bajura, R A; Schwartz, S H

Pumped storage power generation to meet peak demands for electricity is now in use in approximately twenty-two locations in the United States and approximately twenty-eight other sites are either planned or under construction. In general, a reservoir can be characterized by three regions in which the cyclic action of the pumped storage plant may have an effect; the near field, a joining region, and the far field. In modeling a reservoir, it is usually desirable to model the near field with the horizontal and vertical dimensions scaled by the same factor. This is called a geometrically undistorted model. The discharged water behaves as a buoyant jet in the near field region and rises or falls in the reservoir depending upon the temperatures of the jet and the ambient water. A positively buoyant jet is one in which the exit density of the water in the jet is less than the ambient water density. A negatively buoyant jet is one in which the exit density of the jet water is greater than the ambient water density. Both types of jets are found in pumped storage water flows, and an understanding of the jets and the factors which affect them is necessary for the modeling of the overall reservoir system. This thesis presents a detailed study of positively and negatively buoyant jets issuing into a calm homogeneous ambient fluid. The thesis is a combined analytical and experimental effort.

• Research Organization: West Virginia Univ., Morgantown (USA). Thermal Hydraulics Lab.
• OSTI ID: 5395706
• Report Number(s): PB-297293
• Country of Publication: United States
• Language: English

Related Subjects

13 HYDRO ENERGY
130600 -- Hydro Energy-- Environmental Aspects
25 ENERGY STORAGE
250300* -- Energy Storage-- Pumped Hydro-- (-1989)
FLUID FLOW
FLUID MECHANICS
FRESH WATER
HYDRAULICS
HYDROELECTRIC POWER PLANTS
HYDROGEN COMPOUNDS
JETS
MATHEMATICAL MODELS
MECHANICS
MIXING
OXYGEN COMPOUNDS
PEAKING POWER PLANTS
POWER PLANTS
PUMPED STORAGE POWER PLANTS
SEAWATER
SURFACE WATERS
TEMPERATURE GRADIENTS
TURBULENT FLOW
WATER
WATER RESERVOIRS