Executive Summary : | The present project proposal elucidates the origination of free surface vortex and subsequent formation of gaseous entrainment caused by a revolving cylindrical disc in the presence of horizontal crossflow of either phase. Fundamental interfacial characterization will be explored by employing the external rotational flux along with the simultaneous influence of crossflow of either phase. Two immiscible fluids are used to carry out the work of present proposal. In addition, the longitudinal axis of the disc is oriented normally with the nominal interfacial plane. This situation can be obtained when the top surface of the disc is parallel to the plane of the stratified undisturbed interface. We have also further characterized the interfacial deformations for the cases of inclined disc i.e. the longitudinal axis is inclined to the horizontal axis (excluding the vertical case). A thorough computational investigation will be carried out to understand the pattern of vortex entrainment by considering various strength of rotational field and depth of immersion of the disc. This study causes an enhancement of transfer of mass, momentum, and energy by improving the area of the phase boundary. Therefore, the present proposal is expected to be useful in transporting the hydrophysical properties between the phases. Again, an enhancement in exchange of hydrophysical properties is expected with the presence of horizontal crossflow of phases. This phenomenon would be abundantly observed in oceanic mixed layers. This application also provides significant effect in controlling the physical climate of coastal regions because the heat content capacity of the ocean water is much higher than atmospheric air due to the layer mixing, the lower layer fluid makes interaction with the atmospheric air which leads to absorption of more amount of heat from the air. Thus, the mixed layer plays an imperative role in controlling the temperature range of regions nearby ocean. Furthermore, the mixed layer also plays an important role in determining the average level of light found by marine organisms. This process helps to supply sufficient amount of light to very small scaled marine plants like phytoplankton to maintain their metabolism smoothly. |