Numerical Study of the Velocity and Temperature Fields in a Flow-Through Reservoir

Abstract

The fluid dynamic and temperature fields in a reservoir are numerically simulated by means of a finite difference procedure. The flow in the rectangular reservoir is assumed to be two-dimensional in a vertical plane. Inflow is allowed at the surface on one end of the reservoir and outflow occurs at any depth on the opposite end. The reservoir inflow is set at a given temperature and velocity so as to simulate the thermal discharge from a power generating facility. At the surface of the reservoir wind shear, short wave and long wave radiation, evaporation, and convective heat transfer are taken into account. The effects of inflow/outflow, wind shear, and heat transfer on the reservoir are discussed.

A numerical study of mixed convection flow in enclosures

“…These figures show some very interesting features, particularly with respect to the isotherms as Gr/Re2 changes. Similar trends were observed for other values of the governing parameters and the observed behaviour agrees qualitatively with the results of Oberkampf and Crow (1976) and Cabelli (1977).…”

“…The flow considered here is the one that arises due to horizontal inflow and outflow in a wide tank, so that the problem may be considered as two-dimensional. Oberkampf and Crow (1976) and Cabelli (1977) have considered some flows related to this problem. The transient problem is of particular interest in energy storage systems and the spread of the thermal field, outwards from the inflow, is to be determined.…”

Mixed convection in a shallow enclosure with a series of heat generating components

“…In these instances, the interaction between forced and free convection becomes important as shown, for instance, by Chan et al [9]. Mixed convection occurring in water bodies like lakes and ponds due to thermal discharges is studied by Oberkampf and Crow [10], who have systematically taken into account the effects of inflow/outflow, wind shear, buoyancy and heat losses from the surface by convection, evaporation and radiation. In air-conditioned rooms, the buoyancy created due to human occupancy influences the forced air circulation to a significant extent as reported by Nielsen et al [11].…”

Effect of duct velocity profile and buoyancy‐induced flow on efficiency of transient hydrodynamic removal of a contaminant from a cavity

“…In recent years, the studies on natural convective ow in a partially open enclosure have received considerable attention. Many authors have reported their studies on this problem including Oberkampf and Crow [16], Sparrow and Samie [17], Cha and Jaluria [18], Oosthuizen and Paul [19], Papanicolaou and Jaluria [20]. They pointed out that convective heat transfer in a partially open cavity causes a dramatic di erence in the recirculation cavity ow and thermal ÿeld.…”