Planar particle/droplet size measurement technique using digital particle image velocimetry image data
AssigneeCase Western Reserve University
InventorsMark P. Wernet, Amy F. Mielke, Jaikrishnan R. Kadambi
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Abstract
A method for determining a mass flux of an entrained phase in a planar two-phase flow records images of particles in the two-phase flow. Respective sizes of the particles (the entrained phase) are determined as a function of a separation between spots identified on the particle images. Respective velocities of the particles are determined. The mass flux of the entrained phase is determined as a function of the size and velocity of the particles.
Claims18
A method for determining a mass flux of an entrained phase in a planar two-phase flow, the method comprising the steps:
- recording images of particles in the two-phase flow;
- determining respective sizes of the particles as a function of a separation between spots identified on the particle images;
- determining respective velocities of the particles;
- and
- determining the mass flux of the entrained phase as a function of the size and velocity of the particles.
An optical flow meter for determining a mass flux of a particle, comprising:
- a camera for recording an image of the particle entrained in a two-phase flow;
- and
- a processor for determining a size of the particle as a function of a separation between spots identified on the particle, determining a velocity of the particle, and determining the mass flux of the particle as a function of the size and velocity.
A method for determining a size of a particle, the method comprising:
- receiving an image of the particle entrained in a two-phase flow into a processor;
- reducing background noise within the image;
- grouping the pixels having non-zero values into respective particle image arrays;
- identifying glare spots within the image as a function of the particle image arrays;
- and
- determining the size of the particle as a function of a separation between the glare spots.
Dependencies are inferred from the claim text.