نتایج جستجو برای: reactive swirling flow
تعداد نتایج: 630255 فیلتر نتایج به سال:
Swirling waves frequently occur in a three-dimensional tank under nearly resonant excitation with oblique angle. The produces two components and the secondary component triggers rotational waves. detailed mechanism of switch circular direction is clearly described this study. evolution hydrodynamic forces ( F z ) on walls presents beating phenomenon always occurs at peak trough envelope history...
In this paper, a new structure for reactive power market is presented. Considering reactive power losses caused by active power flow in the reactive power market is the main purpose of this paper. Hence, this study tries to improve reactive power market and create fair competition in reactive power generation.
This article examines the issues of hydraulic resistance solar air heaters with concave tubes and reduction pressure losses, as well determination flow in installed working chamber heater discusses number common to reduce losses installation pipes give a swirling motion eliminate sharp decrease heat transfer process
Patterns on the air–water interface of a swirling cylinder flow are produced via hydrodynamic symmetry-breaking instability of the bulk flow. The patterns are rotating waves breaking the axisymmetry of the system and are longitudinal at the free surface ~i.e., not surface deforming!. Qualitative observations and quantitative measurements of velocity and vorticity are provided. Three-dimensional...
We report the observation of dynamo action in the von Kármán sodium experiment, i.e., the generation of a magnetic field by a strongly turbulent swirling flow of liquid sodium. Both mean and fluctuating parts of the field are studied. The dynamo threshold corresponds to a magnetic Reynolds number R(m) approximately 30. A mean magnetic field of the order of 40 G is observed 30% above threshold a...
Recently, displaying natural phenomena such as smoke has become a topic of interest in computer graphics. The ability to simulate the complex shapes and motion of the smoke particles is not only important but is also a difficult problem to solve. In this paper, we propose a method of displaying swirling smoke, including the consideration of its passage round obstacles. By using the idea of meta...
Simulations of three-dimensional laminar forced convection in a plane symmetric sudden expansion are presented for Reynolds numbers where the flow is steady and symmetric. A swirling ‘‘jetlike’’ flow develops near the sidewalls in the separating shear layer, and its impingement on the stepped wall is responsible for the maximum that develops in the Nusselt number adjacent to the sidewalls and f...
Swirling flow tundish was developed to enhance the coalescence of inclusions, so as deeply clean liquid steel. Inclusions would gather center swirling by centripetal force, due density difference between inclusions and Thus, small can coalesce into larger ones, then float free surface their self-buoyance. Physical experiments were carried out in a 1/2.5 scale single strand study characteristics...
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