A numerical analysis of the air flow through the IC engine intake manifold

2019 ◽  
Vol 19 (1) ◽  
pp. 63 ◽  
Author(s):  
Artur Cebula ◽  
Piotr �š ◽  
N.A. wiątek ◽  
Sebastian Kowalczyk
Keyword(s):  
Numerical Analysis ◽  
Air Flow ◽  
Intake Manifold ◽  
Ic Engine ◽  
Flow Through

scholarly journals Numerical Analysis of Diesel Engine with Modified Inlet Valve

2019 ◽  
Vol 8 (6) ◽  
pp. 2378-2380
Keyword(s):  
Numerical Analysis ◽  
Combustion Engine ◽  
Air Flow ◽  
Valve Lift ◽  
Intake Manifold ◽  
Compression Ignition Engine ◽  
Inlet Valve ◽  
Complete Combustion ◽  
Single Cylinder ◽  
Flow Motion

The Internal combustion engine is one of the widely used mechanical system. The primary aspect of all types of engines is the amount of power produced which, is affected by the complete combustion of a mixture of air and fuel. The objective of this present work is to outline the improved performance of single-cylinder Compression Ignition engine with the aid of geometrical modifications of Inlet manifold. The Study is performed on Kirlosakr CI engine. For modeling of engine assembly, CATIA V5 Software has been used. The Numerical simulations are performed with Ansys 14.5 and solver used as CFX. In this work, two different engine models such as Conventional valve and Modified valve with plate is being considered for CFD analysis. The simulation study of air flow motion with a valve lift of 4 mm, 6 mm and 8 mm is performed for both valve configurations. This numerical analysis aims to maximize the air velocity in the inlet valve with minimum turbulence which in turn improves the engine performance. The study is performed on the single cylinder four-stroke variable compression ratio diesel engines. In the present study, the air flow motion inside the intake manifold of an engine is simulated and investigations are performed by considering the six conditions of the intake valve. The results obtained acts as a basis for further investigation of a variety of valve geometry.

scholarly journals Numerical Analysis of Air Flow through Metal Foams

2014 ◽  
Vol 45 ◽  
pp. 645-652 ◽  
Author(s):  
Andrea Diani ◽  
Kartik K. Bodla ◽  
Luisa Rossetto ◽  
Suresh V. Garimella
Keyword(s):  
Numerical Analysis ◽  
Air Flow ◽  
Metal Foams ◽  
Flow Through

Air Flow Simulation in a Diesel Engine

2010 ◽  
Author(s):  
Joaqui´n Ferna´ndez ◽  
Alfonso Marcos ◽  
Rau´l Barrio ◽  
Eduardo Blanco ◽  
Alejandro Castilla
Keyword(s):  
Experimental Investigation ◽  
Diesel Engine ◽  
Mass Flow ◽  
Air Flow ◽  
Flow Simulation ◽  
Intake Manifold ◽  
Experimental Measurements ◽  
Average Mass ◽  
Test Engine ◽  
Flow Through

The intake manifold of a Diesel engine is of significant importance. Several modifications are usually carried out in this system to increase the power generated without modifying the general design of the engine. This work presents a numerical and experimental investigation on the air flow in a commercial Diesel engine. The air average mass flow through the intake manifold was obtained experimentally for the D909 Deutz-Diter Diesel engine. Additionally, a numerical model was created for the test engine. The model reproduces the operating and boundary conditions of the flow and integrates the equations that describe the motion of the fluid. The average mass flow through the engine was obtained from the model and compared with the experimental measurements. The model was used subsequently to investigate the air flow within the engine.

scholarly journals An approach to computational fluid dynamic air-flow simulation in the internal combustion engine intake manifold

2020 ◽  
Vol 24 (1 Part A) ◽  
pp. 127-136
Author(s):  
Stjepan Galambos ◽  
Nebojsa Nikolic ◽  
Dragan Ruzic ◽  
Jovan Doric
Keyword(s):  
Combustion Engine ◽  
Fluid Dynamic ◽  
Air Flow ◽  
Flow Simulation ◽  
Intake Manifold ◽  
Time Interval ◽  
Cad Model ◽  
Ic Engine ◽  
Engine Operation ◽  
Operating Points

The subject of this paper is modeling of an intake manifold of a four-stroke IC engine using contemporary software tools. Virtual 3D CAD model of an intake manifold was designed based on a real intake manifold of a four-stroke IC engine. Based on the CAD model a 3D CFD model of the intake manifold was created. The modeling has been done with the purpose of simulation of the air flow inside the intake manifold in order to monitor values of the internal pressure during several seconds of the engine operation in three different operating points. Also, an experiment was conducted, which included measurements of intake manifold pressure in the same engine operating points in the course of a time interval of approximately the same duration. The results of both the simulation and the experimental measurements have been shown in the paper proving that the created model was good enough for the intended purpose.

Transient Behavior of Air Flow through the Intake Manifold of a Heavy Duty Diesel Engine

2011 ◽  
Vol 87 ◽  
pp. 146-150 ◽  
Author(s):  
T. Srisattha ◽  
S. Issarakul ◽  
Wishsanuruk Wechsatol ◽  
K. Wannatong
Keyword(s):  
Diesel Engine ◽  
Air Flow ◽  
Transient Behavior ◽  
Intake Manifold ◽  
Heavy Duty ◽  
Numerical Techniques ◽  
Heavy Duty Diesel Engine ◽  
Valve Opening ◽  
Flow Through ◽  
Heavy Duty Diesel

This research is aimed to study the transient behavior of air flow through the intake manifold of a heavy duty diesel engine according to the step of valve opening. The numerical study of air flow through the intake manifold was done on the 6SD-1 Isuzu engine. Two numerical techniques, finite element and finite volume methods were used in comparison and tendency confirmation of air flow characteristics inside the manifold. The transient air flow was studied at the engine speed of 1,000 rpm, 1,500 and 2,000 rpm. The numerical results from both numerical techniques agree exceptionally well with each other. The transient behavior of air flow according to the step of valve opening is well illustrated.

scholarly journals ANALYSIS OF AIR FLOW THROUGH THE ENGINE INTAKE AND EXHAUST DUCTS

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Zbigniew Czyż
Keyword(s):  
Diesel Engine ◽  
Numerical Analysis ◽  
Geometrical Model ◽  
Intake Manifold ◽  
Ansys Fluent ◽  
Flow Rates ◽  
Numerical Investigations ◽  
Mass Flow Rates ◽  
Flow Through ◽  
Stroke Engine

The paper presents numerical analysis of charge exchange in an opposed-piston two-stroke engine. The research engine is a newly designed internal diesel engine. This unit is composed of three cylinders in which operate three pairs of opposed-pistons. The numerical investigations were carried out using ANSYS FLUENT solver. The geometrical model includes an intake manifold, a cylinder and an outlet manifold. The calculations specified a swirl coefficient obtained under steady conditions for fully open intake and exhaust ports as well as the CA value of 280° for all cylinders. In addition, mass flow rates were identified separately in all of the intake and exhaust ports to achieve the best possible uniformity of flow in particular cylinders.

scholarly journals Analysis of air flow velocity distribution in the intake system of an SI engine

2017 ◽  
Vol 169 (2) ◽  
pp. 152-157
Author(s):  
Szymon KOŁODZIEJ ◽  
Grzegorz LIGUS ◽  
Jarosław MAMALA ◽  
Andrzej AUGUSTYNOWICZ
Keyword(s):  
Air Flow ◽  
Intake Manifold ◽  
Si Engine ◽  
Work Time ◽  
Flow Disturbances ◽  
Flow Through ◽  
Load Simulator ◽  
Air Flow Velocity ◽  
Main Component ◽  
Time Density

The conditions of air flow in the intake determine power generated by the engine to a large extent. The biggest resistances in flow of the air sucked or pumped into the engine are generated by the throttle, which is at the same time the main component which allows for regulation of engine power. For the purpose of research conducted in this work, time density of engine work points in analyzed velocity profiles was determined with the use of Engine Road Load Simulator. Thanks to the knowledge of time velocity, it was possible to determine throttle positions at which the engine operates most frequently. With the use of image analysis methods, obtained parameters were experimentally researched, considering flow disturbances which are the effect of air flow through the throttle and uneven air distribution in the intake manifold of a four-cylinder engine.

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