integrated simulation technologies a2/19, sr. no. – ½, … · 2018-11-24 · blockage duct...
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[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: [email protected]
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