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PRESENT BYM.G.Kannan,

M.E (THERMAL POWER)

GUIDE

P.RAMESH

ASSISTANT PROFESSOR

PHASE - I

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Objective

Introduction

Methodology

Tracing of cylinder head geometry Data retrieve

Modeling of cylinder head

Repairing of CAD geometry

Preparation volume mesh

Conclusion

Reference

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To measure and model existing cylinder head

To prepare volume mesh and redefine of the model

To analysis the model for various characteristics

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All modifiers, modified intake port cylinder head tohave an increasing increment of horsepower and air-flow and thus the engine efficiency will be increasetoo.

Computational fluid dynamics is today an equal partnerwith theoretical and experimental approach. It is thirdapproach in the Numerical analysis.

Numerical analysis gives better prediction of internalcombustion engine for their improvement.

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Phase - I Review of existing data

Section of cylinder head

Scanning of cylinder head section of air/fuel path.

Measuring of sectioned air/fuel path geometrycoordinates

Cylinder head solution domain of physical model

Repair of CAD profile

Surface mesh preparation

Volume mesh preparation

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Phase - II Export of Volume mesh as data base file

Import data base file

Mesh checking

Material properties

Dispersed phase model

Boundary condition

Analysis features

Analysis control

Run time control

CFD analysis of process

Post process

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Cylinder combustion dome Port trajectory of cylinder head

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Valve Guide pocketing

Wire frame model of valveand cylinder head

Port Extrude

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CAD repair workSurface mesh

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Imported CAD data Template generation Clipped hidden view

Extrusion layerClipped hidden view Volume mesh

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Better representation of solution domain

Less effort of CAD geometry repair

Higher stability of mesh generation

Reduce the error occur at run time controls

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[1] Numerical investigation of cyclic variations in gasoline engines using a hybrid URANS/LES modelingapproach, Christian Hasse *, Volker Sohm 1, Bodo Durst, BMW AG, Powertrain Development (EA),80788 Mnchen, Germany

[2] Large eddy simulation based analysis of the effects of cycle-to-cycle variations on airfuel mixing inrealistic DISI IC-engines, D. Goryntsev , A. Sadiki, M. Klein, J. Janicka

[3] Modelling soot formation in a DISI engine, Jonathan Etheridge , Sebastian Mosbach , Markus KraftHao Wub, Nick Collings

[4] Modelling of combustion and nitrogen oxide formation in hydrogen-fuelled internal combustionengines within a 3D CFD code, Vincent Knop*, Adle`ne Benkenida, Stephane Jay, Olivier Colin

[5] Numerical study of the mixture formation process in a four-stroke GDI engine for two-wheelapplications, M. Costa *, U. Sorge, L. Allocca, Istituto Motori CNR, Viale Marconi, 8, 80125 Naples,

Italy

[6] Experimental and numerical analysis of high pressure diesel spraywall interaction, L. Andreassi , S.Ubertini , L. Allocca

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[7]APPLICATION OF DETAILED CHEMISTRY AND CFD FOR PREDICTING DIRECTINJECTION HCCI ENGINE COMBUSTION AND EMISSIONS, SONG-CHARNGKONG and ROLF D. REITZ, Department of Mechanical Engineering University ofWisconsinMadison

[8]Backfire prediction in a manifold injection hydrogen internal combustion engine, Xing-hua Liua, Fu-shui Liu, Lei Zhou,, Bai-gang Sun, Harold. J. Schock, School of Mechanical

and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, China, EngineResearch Laboratory, Michigan State University, East Lansing, MI, USA

[9] Charge stratification to control HCCI: Experiments and CFD modeling with n -heptaneas fuel, Zhaolei Zheng, Mingf Yao , State Key Laboratory of Engines, Tianjin University,Weijin, Tianjin 300072, China

[10] An experimental and numerical study on sprays injected from two-hole nozzles forDISI engines, Keiya Nishida a,*, Jiangping Tian b, Yasuki Sumoto, Wuqiang Long,Kiyotaka Sato , Masahisa Yamakawa , Department of Mechanical System Engineering,University of Hiroshima, Kagamiyama, Higashi-Hiroshima 739-8527, Japan and Instituteof Internal Combustion Engine, Dalian University of Technology, Dalian 116023, China