Doppler Global Velocimetry Measurement of Charge Motion Inside Piston Bowl of a Motored Diesel Engine and Correlation to CFD Results IAV

Format:

Conference/Event

Author/Creator:

Deepe, Deepe, author.

Contributor:

Gruenig, Carolus

Schramm, Christian

Seidel, Thomas

Tschiggfrei, Wolfgang

Conference Name:

SAE 2012 World Congress & Exhibition (2012-04-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

Charge motion inside the piston bowl is an important parameter in the development of the combustion process of DI Diesel engines. To snapshot this charge motion at the start of injection or the start of combustion, normally CFD simulation has traditionally been used. The use of CFD tools has provided some insight into the combustion process and therefore has shortened the development process of piston engines. To achieve a better understanding of the parameters which influence a low emission diesel-combustion the virtual approach needs hardware assisted validation. A test method has been developed to measure charge motion inside the piston bowl of a motored diesel engine at TDC using laser based Doppler Global Velocimetry (DGV). The use of this new measurement approach is versatile. Investigations can be conducted on charge motion caused by variation of compression ratio and piston bowl design or caused by valve timing or valve seat design. The focus of this paper is on the charge motion measurement approach including new seeding particles, basic flow study results, and a comparison of the measurement results to transient CFD- calculations

Notes:

Vendor supplied data

Publisher Number:

2012-01-1234

Access Restriction:

Restricted for use by site license