Proceedings ArticleDOI
In-Cylinder Flow Analysis in a Two-Stroke Engine - A Comparison of Different Turbulence Models Using CFD
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The article was published on 2013-04-08. It has received 29 citations till now. The article focuses on the topics: Two-stroke engine & Turbulence.read more
Citations
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Journal ArticleDOI
Effect of piston profile on performance and emission characteristics of a GDI engine with split injection strategy – A CFD study
Yashas Karaya,J M Mallikarjuna +1 more
TL;DR: In this article, an attempt has been made to understand the effect of piston profile on the performance and emission characteristics in a four-stroke wall guided GDI engine using computational fluid dynamics (CFD).
Development Of Numerical Model For Simulation Intake Flow In Combustion Chamber Of L-Head Engine Type
TL;DR: In this paper, the behavior of the flow inside the L-type combustion chamber for in-cylinder engine with three different simulations is analyzed and the inlet velocity is calculated using the standard engine formula for the piston at position of 9°, 18°, 27°, 36° and 45° degrees.
Proceedings ArticleDOI
Influence of a High-Swirling Helical Port with Axisymmetric Piston Bowls on In-Cylinder Flow in a Small Diesel Engine
Journal ArticleDOI
Effect of port water injection on suppressing knock in gasoline direct injection engines
TL;DR: In this article , the effect of different port water injection (PWI) ratios on the knock in gasoline direct injection engines is explored, and the results show that PWI can effectively reduce the occurrence of spontaneous combustion in the cylinder by reducing the flame propagation speed.
Journal ArticleDOI
Effect of Piston Shape on Scavenging in a Two-Stroke Engine - A CFD Analysis
Vivek Agrawal,J M Mallikarjuna +1 more
TL;DR: In this article, the effect of piston shape on in-cylinder flows in a conventional loop scavenged two-stroke engine using CFD was investigated. But, the results showed that flat with center-bowl piston is the best in terms of incylinder flow characteristics, it gives higher tumble ratio and TKE with very little effect on efficiencies.
References
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Journal ArticleDOI
The numerical computation of turbulent flows
Brian Launder,D. B. Spalding +1 more
TL;DR: In this paper, the authors present a review of the applicability and applicability of numerical predictions of turbulent flow, and advocate that computational economy, range of applicability, and physical realism are best served by turbulence models in which the magnitudes of two turbulence quantities, the turbulence kinetic energy k and its dissipation rate ϵ, are calculated from transport equations solved simultaneously with those governing the mean flow behaviour.
Journal ArticleDOI
Renormalization group analysis of turbulence I. Basic theory
Victor Yakhot,Steven A. Orszag +1 more
TL;DR: In this article, a dynamic renormalization group (RNG) method for hydrodynamic turbulence was developed, which uses dynamic scaling and invariance together with iterated perturbation methods, allowing us to evaluate transport coefficients and transport equations for the large scale (slow) modes.
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Large eddy simulations of in-cylinder turbulence for internal combustion engines: A review
TL;DR: In this paper, a review of the limited number of LES applications to engine flows is given, and most significant results from these studies are presented, along with the main characteristics of in-cylinder flows.
Journal ArticleDOI
A Digital Particle Image Velocimetry Investigation of Flow Field Instabilities of Axial-Flow Impellers
TL;DR: In this paper, the authors used particle image velocimetry (DPIV) to examine the flow field in a vessel agitated by an axial-flow impeller in turbulent operation.
Journal ArticleDOI
Topological flow evolutions in cylinder of a motored engine during intake and compression strokes
TL;DR: In this paper, the evolution processes of the in-cylinder flows in the axial and diametral planes of a motored two-valve, singlecylinder, four-stroke engine during the intake and compression strokes are diagnosed by using a particle image velocimeter.