Publication de 6 numéros par an
ISSN Imprimer: 2152-5102
ISSN En ligne: 2152-5110
Indexed in
Experimental Study on Vortex Motion
RÉSUMÉ
The present paper makes an effort to visualize the flow patterns and other characteristics of both forced and free vortex motion by an experimental method. Works of both experimental and numerical have been conducted to understand the various features of vortex motion and its effects on drag, etc. Here colored die has been used to understand the profiles and an arrow shaped strip marks the difference between irrotational and rotational flow. In the forced vortex motion it has been observed that the parabolic profile remains invariant with the rpm of the paddle and the height of the lowest point of the profile decreases with the increase in paddle speed. In the free vortex motion, it is observed that the hyperbolic profile does not change with the change in flow rate. In this case, suction is created towards the centre where as in the case of forced vortex no such suction arises. With the reduction in the size of the orifice diameter, the profile becomes less steep for free vortex. In this case the velocity profile in the core region is straight; as the radius increases the profile becomes rectangular hyperbola where as in the case of forced vortex the velocity profile maintains its linear nature for the entire range of radii.