Twisting of a fire vortex subject to gravity and Coriolis forces

Effective localization of coal dust explosions using hydro vortex coagulation

“…Goal of modeling parameters of «fluid droplet -dust particle» system in process of proposed vortex inertial orthokinetic hetero-coagulation is study of kinematic coagulation mechanism in conditions of action of attached vortex induced by rotating fluid droplet [30, [36][37][38].…”

“…So, to reduce energy consumption of high pressure hydrodynamic dust suppression it is necessary to change kinematics of interaction of fluid droplet and dust particles in vortex zone. With regard to the above it is possible due to influence of vortex energy determined by rotation of fluid droplet with speed ω l around its axis, coinciding with speed vector V l [30, 36,37].…”

“…lowered static pressure to value of specific energy ΔW k of attached vortex, which speed according to hydrodynamic analogy is determined by known in theory of electrodynamics Bo-Savar formula. So, attached vortex determined by rotation of fluid droplet, lowering static pressure in area of its contact with dust particle, increases contact wetting angle to value θ l , aiding in reduction of aerodynamic energy barrier [30,36,37].…”

“…Equation for additional kinetic energy equal to energy of vortex attached to rotating fluid droplet, with regard to (3) and Fig. 1, Bernoulli and Ostrogradsky-Gauss equations [36,37] will be…”