Rotational flow opposite impact type PIV solid particle generator and particle generation method

• Main Authors: CHE QINGFENG, ZHANG JUN, ZHOU QUAN, CHEN LI, CHEN SHUANG
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2022
• Subjects: INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT; MEASURING; MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK; PHYSICS; TESTING

The invention discloses a rotational flow hedging type PIV solid particle generator and a particle generation method, the generator comprises a rotational flow cavity, an air inlet spray pipe and a particle hedging pipe, the air inlet spray pipe and the particle hedging pipe are communicated with the rotational flow cavity, and the rotational flow cavity is formed by surrounding an arc-shaped bottom piece, a closing-in type middle piece and a concave top piece which are detachably connected in sequence; a total air outlet is formed in the particle hedging pipe; the concave surface of the arc-shaped bottom piece faces upwards, the inner diameter of the necking-in type middle piece is gradually reduced from bottom to top, and the concave surface of the concave top piece faces downwards; the air inlet spray pipe is inserted into the rotational flow cavity from the arc-shaped bottom piece, and the particle hedging pipe is communicated into the concave top piece. The PIV particle generator is used for solving the