Hi All,


I have already done 1D analysis with Avl Boost.And now,I am trying to obtain some results with Avl Fire Ese Diesel. But I would ask you a question about it.My Air-Fuel Ratio is 16.86 which I saw on Avl Boost(1D analysis).But Avl Fire Ese Diesel gives me 37.4. I wrote in inital conditons on Avl Fire EseDiesel:

Egr Composition:0.0588
Egr Mass Fraction:0
Equivalence Ratio:0

How can I correct it to 16.86? The values don’t keep eachother . But total mass from 1D analysis and 3D analysis keep themselves. Please help me...

since u haven gave any equivalence ratio , fire shouldn be giving such a weird value .. can you send me your .fla file available in calculation folder to ayoshicfd@gmail.com ... i shall try my level best to sort this out

Hi,

Are you using Avl Boost? I would ask you a question about it.I can see mean pressure or total mass graphs but can not export the data of these graphs, how can ı do this? I want to obtain these datas of the graphs?

Kind Regards,

Sena

Dear All,

Although I can simulate the case with Ecfm-3z combustion model,unfortunately I can not simulate the same case with Eddy break up combustion model. What is the problem,do you think? What can I do? Please help me.

The comparisons can be made using Impress in work flow manager. There are different options in impress to make cuts which will navigate you to select the options like pressure, velocity, temp etc... A movie can also be generated in Impress. To better work with internal combustions I would go with fame engine plus :) It is kinda fuzzy at the beginning but you will enjoy it later on.

Thank you for your reply :).I did it already. I worked with Avl Fire Esediesel module.

Avl fire ese diesel resume problem
 

Hi all,

I'm working on AVL fire ese diesel module and actully I'm a very new user on it. After saving operation, I can not see my previous inputs. For example, I toggled the combustion model on and enter the all parameters and saved. But when I want to resume my model, I can not see combustion model toggle and my parameters there. But my previous engine parameters are still there but I dont know why just simulation parameters are missing.

Anyone can help me please on this ?

Hello friend i am final year mechancal student
 

i am doing my final year project on cfd analysis of direct injection diesel engine. for that i need a avl fire software and i cant afford to buy that software. i am so much in need of that software so kindly request u to where can i download the software for free atleast trial version .. plz tell me if u know .. plz plz............. also suggest me other softwares to do the project.

i am doing my final year project on cfd analysis of direct injection diesel engine. for that i need a avl fire software and i cant afford to buy that software. i am so much in need of that software so kindly request u to where can i download the software for free atleast trial version .. plz tell me if u know .. plz plz............. also suggest me other softwares to do the project.

i am doing my final year project on cfd analysis of direct injection diesel engine. for that i need a avl fire software and i cant afford to buy that software. i am so much in need of that software so kindly request u to where can i download the software for free atleast trial version .. plz tell me if u know .. plz plz............. also suggest me other softwares to do the project.

Hi dears
How can we choose the best value for Cfp?? for TFSC model

hii sir,
i have also observed this divergence problem during my simulation of diesel engine combustion. what i understood by checking that cases, if the mesh cell size is too large there is more possibility to diverge the solution.
so please try on this...and let me know about the result..

vikram sir,
i also posted some problems related to my solutions...please give a look on it and give me some suggestions...i am a master student doing my project in CFD
with regards
gafoor

AVL FIRE ESE simulation initial condition...
 

Hi Sena & friends,

I am doing a piston bowl optimization study using AVL FIRE
Hw can I assign the initial condition like EGR composition ?
I had a AVL boost model of the same where i can get the EGR mass fraction (eg:-Res.gas content [-] 0.0681).
But hw can i assign EGR composition & Equivalent ratio??

Plz guide...

Heat Release rate
 

Hello all.
I am doing my masters and need to validate an engine on AVL Fire.
I have nearly got P-theta diagram correctly.
But in Heat release rate I am facing problem.
Particularly in down slope of the curve and ignition timing.
What modification will help me ?

chethan......pls send me the details to my mail...i will check.....

Hi. .I wanna simulate HCCI diesel engine using AVL Fire. .how can I get start

Avl fire
 

Hi. .I wanna simulate HCCI diesel engine using AVL Fire software package. .how can I get start

Hello,
please i am using avl boost and ese diesel. i have read so many articles in which people used boost to obtain initial conditions for ese diesel. How do i obtain the initial condition values i need for ese diesel simulation from boost ?

hi
how can I run a multi-component fuel simulation in work flow manager for a diesel engine?
please help me. My email address is turaj.hashempur2@gmail.com

Thanks in advance