Numerical and Experimental Investigation of In-Cylinder Swirl Flow Using Twisted Tape in Diesel Engines VIT University, Vellore, India

Format:

Conference/Event

Author/Creator:

Aravamuthan, Aravamuthan, author.

Contributor:

Karuppa Raj, R Thundil

Pradhan, Rahul

Rathore, Gopal Singh

Conference Name:

8th SAEINDIA International Mobility Conference & Exposition and Commercial Vehicle Engineering Congress 2013 (SIMCOMVEC) (2013-12-04 : Chennai, India)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

In-cylinder flow in diesel engines plays an important role in the combustion, thus affecting the emissions from the engine. Swirling flow inside the cylinder during intake and compression stroke is one of the important parameters that improve combustion. This paper deals with comparison between two different intake manifold geometries in a direct injection diesel engine in terms of their swirl generation mechanisms in the cylinder during suction stroke. The modified geometry involves a twisted tape inserted in the intake manifold for swirl generation. A three-dimensional numerical study of the flow behavior is performed using Computational Fluid Dynamics (CFD) and experimentally validated using a steady flow test bench. The effect of twist ratio on the swirl generation is simulated using CFD. The CFD study involves a transient case applied to a dynamic mesh which characterizes the downward movement of the piston during suction stroke. The in-cylinder swirl is generally characterized by swirl coefficient and swirl ratio. These parameters are evaluated to understand the effect of twisted tapes and their geometries in the intake manifold of a diesel engine. An experiment is also performed with the initial and modified manifold geometry to understand the emission characteristics of the diesel engine

Notes:

Vendor supplied data

Publisher Number:

2013-01-2793

Access Restriction:

Restricted for use by site license