Cyclically Resolved Simultaneous Flame and Flow Imaging in a SI Engine Cosworth Technology Limited

Format:

Book

Conference/Event

Author/Creator:

Cairns, A., author.

Conference Name:

International Fuels and Lubricants Meeting and Exposition (2000-10-16 : Baltimore, Maryland, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2000

Summary:

A novel dual seeding method has been developed to obtain full bore cyclically resolved simultaneous flame images and associated velocity fields in an optically accessed single cylinder research spark ignition engine. The technique has been used to study interaction between the propagating flame and in-cylinder gas motion. Light generated by a fast repetition rate copper vapour laser was formed into a thin light sheet, which passed horizontally through the disc shaped combustion space of a spark ignition engine having complete overhead optical access. Mie scattered light from relatively sparse and large particles (65μm) at successive intervals allowed flow definition by particle tracking velocimetry. Simultaneous scattering from dense small seed (0.22μm) was used to generate flame front images, which were digitised and analysed to quantify turbulent flame structure and development. The flame was shown to have significant effect on local unburned gas motion as well as vice versa. Although principally concerned with the optical techniques, in their demonstration, some observations are made on cyclic variation and the effects of axial swirl

Notes:

Vendor supplied data

Publisher Number:

2000-01-2832

Access Restriction:

Restricted for use by site license