[Newsletter: Volume-3, May 2015]

A2/19, Sr. No. – ½, 1/3, ¼, 12, Aditya Breeze Park,

Balewadi, Pune, 411045, India.

Mobile: +91-9763909935

E-mail: support@integratedsimtech.com

Website: www.integratedsimtech.com

INTEGRATED SIMULATION TECHNOLOGIES

PVT LTD

Preferred Partner in Engine Simulation

No.1 in GT-SUITE Training

ABOUT IST

Integrated Simulation Technologies Pvt. Ltd.(IST), established in 2012, is a knowledge-driven engineering

consultancy company in the field of one dimensional (1D) system level modeling and simulation of engine,

cooling, vehicle drivetrain, and lubrication systems. We are a preferred partner in engine simulation and

No.1 in GT-SUITE Training in India. We also provide consultancy in 3D CFD analysis. Our customer list

includes OEMs, third parties, and academic institutes. We use 1D GT-SUITE simulation tool for execution

of our 1D simulation projects.

Our unique selling proposition (USP)

Excellent resources– We are rich in knowledge, experience, education, skill, and training

Expertise – We are expert in engine, cooling, vehicle drivetrain, and lubrication system

simulation

Quality – We exceed customer expectations by delivering trustworthy and exceptionally high

quality results

Confidentiality – We take utmost care to maintain confidentiality of our customers data and

information

Cost effective – We provide unmatched value for your money

Consulting projects

We offer consulting projects in the following areas and beyond:

Engine Performance Analysis

Engine Cooling System and Vehicle Thermal Management

Vehicle Drivetrain Simulation

Lubrication Circuit Analysis

3D CFD Analysis

3D CFD Analysis

Physics - Compressible & incompressible; Steady and transient; Heat transfer & conjugate heat

transfer; Cavitation; Turbo machinery (fan, blower, pump)

Domain - Automotive (in-cylinder, port, valve, manifold, engine cooling system, cabin flow &

HVAC, air ducts. flow around car); Process industry (mixing vessel, duct, HEX); Power plant

industry (boiler, duct, ESP, fan); Civil engineering

Integrated Simulation Technologies (IST) conducts exceptionally high quality basic and advanced training

on Engine and Vehicle development as mentioned below:

Theoretical training

Engine Design

Cooling System Design

GT-SUITE tool based training

Basic Engine Modeling

Advanced Engine Modeling

Acoustics & Aftertreatment Analysis

Cooling System Simulation

Lubrication System Simulation

Vehicle Drivetrain Simulation

Fuel Injection and Hydraulic System Performance Analysis

FUNDAMENTALS OF ENGINE & COOLING SYSTEM DESIGN

Fundamental of marine propeller curve

http://integratedsimtech.com/Marine_Propeller_Curve.html

Brake power to BMEP conversion of 4-stroke engine

BMEP in bar = (Brake power in KW*1000/No. of cylinder)*(2*60/rpm)/(Displacement volume per cylinder in

m3)/1000

General design principles for an automotive muffler

http://www.acoustics.asn.au/conference_proceedings/AAS2005/papers/34.pdf

Direct injection diesel engines-What is the limit for NOx reduction

http://www.fischer-tropsch.org/DOE/_conf_proc/DEER/970799/conf_970799_pg223.pdf

How car exhaust system works

https://www.youtube.com/watch?v=W6dIsC_eGBI

GT-SUITE TIPS

How injection rate profile is looked up for individual operating point in GT-SUITE

InjectionRateMap reference object in InjMultiProfileConn object is used to define injection rate

profile matrix (IRPM) as a function of energizing time (ET) and rail pressure (RP). Where

individual injection rate (g/s) profile is specified as a function of time. But during simulation

users specify injected mass (IM) and RP as input. Have you ever checked how the injection

profile is selected from the IRPM based on the specified inputs?

In GT-SUITE, each mass flow rate profile is integrated in time to calculate the IM, which results

in a contour map of IM vs. RP and ET. When user specifies injected mass and rail pressure as

inputs, ET is calculated from the above contour map. Now, the injection profile is created by

interpolating in RP and ET using the event-based, unconstrained interpolation procedure. For

detailed info, refer to GT-SUITE Help for InjectionRateMap.

Smart way to model blockage in Cool-3D

Engineers might be interested to simulate flow blockage of a component. For example, a part

of radiator front needs to blocked completely. You can place a Blockage plate (fig) by using

COOLBlockage object. But COOL3D has limitation in terms of minimum gap requirement

between this plate and radiator front. Subsequently, you cannot completely blocked this part.

A smart way what you can do is create the Blockage plate with some thickness. Then create

Blockage duct similar to fan duct using COOLDuct object starting from end of the plate and

ending at start of the radiator front. This ensures complete blockage of the radiator front part.

Lambda calculation and matching its measured value

Lambda, λ = (Actual air fuel ratio/Stoichiometric air fuel ratio). Many times, the stoichiometric

air fuel ratio (SAFR) considered for measured data is quite different than what is used in GT-

Power for the same/similar fuel. Subsequently, GT-Power predicted λ does not match with the

test data even though there is good match in air and fuel flow. This creates some confusion.

The best way to deal with it is -- (a) hand calculate to determine SAFR considered for measured

data from measured AFR and λ; (b) calculate AFR by sensing air and fuel flow from

EngineCrankTrain object in GT-Power and divide it by the above SAFR to get λ. MathEquation

object can be used for this purpose.

Flowsplit expansion diameter as calibration parameter while building FRM

Do you know that expansion diameter of the flowsplits (e.g. intake manifold, exhaust manifold)

of a fast running model (FRM) can be effectively used to match measured pressure and

temperature?

GT-Power to simulate effect of VVT and variable intake manifold system (VIMS)

http://www3.fs.cvut.cz/web/fileadmin/documents/12241-BOZEK/publikace/2002/F02V263.pdf

AUTOMOTIVE NEWS

Top 10 innovations in automobile industry in 2014

http://economictimes.indiatimes.com/industry/auto/news/auto-technology/top-10-innovations-in-

automobile-industry-in-2014/articleshow/45688058.cms

New technology turns petrol engines into low compression diesel

http://www.gizmag.com/go/4695/

Scientists unveil chocolate-fuelled race car

http://www.nbcnews.com/id/30581299/ns/technology_and_science-tech_and_gadgets/#.VJPK9BAJAo