Engine simulator
Engine simulator
(OP)
Lotus Engineering's Engine simulator is a time history based one, that is, it uses a one dmensional wave approach ( I think). The demo version is single cylinder only, but that will kill your cpu for days at a time if you build complex intakes and exhausts. Literally - 4 days on my Athlon 1700 to run 7 speeds.
Rather nicely it predicts sfc as well.
I haven't dug into the theory behind how it works, so far, but it is worth a look.
www.lesoft.co.uk
Rather nicely it predicts sfc as well.
I haven't dug into the theory behind how it works, so far, but it is worth a look.
www.lesoft.co.uk
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.





RE: Engine simulator
RE: Engine simulator
Thank you Greg for the link!
RE: Engine simulator
It won't work. I must have down loaded the wrong one then.
RE: Engine simulator
h
RE: Engine simulator
RE: Engine simulator
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.
RE: Engine simulator
- Steve
RE: Engine simulator
I haven't tried it, though.
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.
RE: Engine simulator
The usual method is to treat the orifice as a monopole source, using the instantaneous predicted velocity to derive volume flow rate. Then use a linear radiation model to radiate to the far field. 1D codes are usually pretty good at predicting orifice velocity.
(I noticed NVH was one of your fields, so the above should make sense).
- Steve
RE: Engine simulator
Ale