Visualization of Automotive Catalytic Converter Internal Flows General Motors Research Laboratories

Format:

Conference/Event

Author/Creator:

Wendland, Daniel W., author.

Conference Name:

1986 SAE International Fall Fuels and Lubricants Meeting and Exhibition (1986-10-06 : Philadelphia, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1986

Summary:

Internal flow details of a prototype dual-bed monolith converter were determined in water-flow visualization tests run on a full-scale transparent acrylic model. Using steadily flowing water seeded with a small quantity of tracer particles, fluid motion within transparent sections of the flow model was deduced from particle pathlines illuminated with a thin plane of laser light. Flow in the inlet transition separated from the diffuser walls and impinged as a constant-diameter jet on the leading face of the first monolith. Velocity profiles from streak photographs showed that the level of flow maldistribution in the first monolith was a function of Reynolds number. Secondary air injected between the monoliths was uniformly distributed along the major axis of the converter under all flow conditions. At dilution ratios of 16% or more the jet penetration was adequate to provide a uniform, well-mixed diluent distribution

Notes:

Vendor supplied data

Publisher Number:

861554

Access Restriction:

Restricted for use by site license