Monotonic Valve data in Ricardo

[nathan s]

Does anyone know what it means to have monotonic valve data in Ricardo? It keeps on killing my simulation because of it.

Thanks,

[nathan s]

Does anyone know what it means to have monotonic valve data in Ricardo? It keeps on killing my simulation because of it.

Thanks,

[John Bucknell]

Not sure what that exact error means, but make sure you have a lift curve versus crank angle AND discharge coefficient data across the same lift/diameter ratio as you have in the lift curve. Usually monotonic means you only have one data point when there should be many.

[Charlie]

Valve data and head flow data must be defined as Monotonically Increasing (http://www.nist.gov/dads/HTML/monotoncincr.html). Sounds like a problem with your input data. Try replacing whatever you are using with sample data just to see if you can compile.