Brief Definition of Data
The first eight columns of the returned data are nominal search parameters.
Description of data columns:

 Nominal Ambient Oxygen Concentration [%], O_{2}
Mole fraction of ambient oxygen in the vessel. Used for simulating the use of EGR or creating an inert (0% O_{2}) environment. Concentrations of other major species (N_{2}, CO_{2}, H_{2}O) .
 Nominal Ambient Oxygen Concentration [%], O_{2}

 Nominal Ambient Temperature [K], T_{a}
Gas temperature of the core region of the vessel. Uniformity of core temperature.
 Nominal Ambient Temperature [K], T_{a}

 Nominal Ambient Density [kg/m^{3}], ρ_{a}
Gas density of the core region of the vessel.
 Nominal Ambient Density [kg/m^{3}], ρ_{a}

 Nozzle Size or Orifice Diameter [mm], d
Smallest diameter of injector nozzle. Detailed description of injector tips and orifice flow coefficients.
 Nozzle Size or Orifice Diameter [mm], d

 Nominal Injection Pressure Difference [MPa], DP_{inj}
Difference between fuel injector pressure and ambient gas pressure.
 Nominal Injection Pressure Difference [MPa], DP_{inj}

 Nominal Injector Duration
Fuel properties.
 Nominal Injector Duration

 Fuel Type
Fuel type.
 Fuel Type

 Nominal Fuel Temperature [K], T_{fl}
Nominal Fuel Temperature.
 Nominal Fuel Temperature [K], T_{fl}

 Institution
Name of the institution that recorded select data.
 Institution

 Readme
All readme, description of dataset.
 Readme

 Actual Oxygen Concentration [%],
Actual ambient oxygen mole fraction.
 Actual Oxygen Concentration [%],

 Actual Oxygen Concentration Uncertainty[%],
Actual ambient oxygen mole fraction uncertainty.
 Actual Oxygen Concentration Uncertainty[%],

 Ambient Components[%],
Actual mole fraction for all species, major and minor species.
 Ambient Components[%],

 Ambient Components Uncertainty[%],
Uncertainty for all species mole fraction, major and minor species.
 Ambient Components Uncertainty[%],

 Ambient Molecular Weight [K]
Ambient molecular weight.
 Ambient Molecular Weight [K]

 Ambient Temperature at Ignition [K]
Actual mean ambient core temperature at start of injection.
 Ambient Temperature at Ignition [K]

 Ambient Temperature at Ignition Standard Deviation [K]
Actual ambient core temperature Standard Deviation.
 Ambient Temperature at Ignition Standard Deviation [K]

 Ambient Temperature at Ignition Uncertainty [K]
Actual mean ambient core temperature Uncertainty.
 Ambient Temperature at Ignition Uncertainty [K]

 Ambient Temperature After Ignition [K]
Calculated ambient temperature after ignition and premixed burn compress unmixed ambient gases. Although the difference from the ambient temperature at start of ignition is typically small, this temperature is useful for evaluation of ambient temperature for diagnostics performed after ignition such as liftoff length or soot measurements. Further description.
 Ambient Temperature After Ignition [K]

 Bulk Temperature [K], T_{b}
Massaveraged bulk temperature (T_{b}) determined from the realgas equation of state (P = Z · R · ρ · T_{b} /MW), where ρ is constant for a given experiment and P is pressure. Detailed description
 Bulk Temperature [K], T_{b}

 Actual Ambient Density [kg/m^{3}]
Actual ambient density.
 Actual Ambient Density [kg/m^{3}]

 Ambient Density After Ignition Standard Deviation [kg/m^{3}],
Actual ambient density Standard deviation.
 Ambient Density After Ignition Standard Deviation [kg/m^{3}],

 Ambient Density After Ignition Uncertainty [kg/m^{3}],
Actual mean ambient density Uncertainty.
 Ambient Density After Ignition Uncertainty [kg/m^{3}],

 Ambient Density After Ignition [kg/m^{3}],
Calculated ambient density after ignition and premixed burn compress unmixed ambient gases. Used as density for quasisteady liftoff prediction for example.
 Ambient Density After Ignition [kg/m^{3}],

 Bulk Density [kg/m3], ρ_{b}
Massaveraged bulk density. The initial density of combustion vessel charge, prior to preburn and diesel injection. Bulk density is constant for a given experimental simulation.
 Bulk Density [kg/m3], ρ_{b}

 Ambient Pressure [MPa], P
Mean ambient pressure.
 Ambient Pressure [MPa], P

 Ambient Compressibility Factor , Z
P=Z·R·ρ_{a}·T_{a}
 Ambient Compressibility Factor , Z

 Ambient Compressibility Factor Uncertainty
Compressibility factor at time of injection Uncertainty.
 Ambient Compressibility Factor Uncertainty

 Ambient Mean Velocity [m/s]
Ambient mean velocity, could be link to spatiallyresolved text file.
 Ambient Mean Velocity [m/s]

 Ambient Mean Velocity Uncertainty [m/s]
Ambient mean velocity Uncertainty.
 Ambient Mean Velocity Uncertainty [m/s]

 Ambient Velocity Turbulence [m/s]
Ambient velocity turbulence intensity; file.
 Ambient Velocity Turbulence [m/s]

 Ambient Velocity Turbulence Uncertainty [m/s]
Ambient velocity turbulence intensity Uncertainty; file.
 Ambient Velocity Turbulence Uncertainty [m/s]

 Vessel Geometry
Dimensions of vessel; could be 3d solid model, etc…
 Vessel Geometry

 Actual Mean Injection Pressure [MPa]
Actual mean injection pressure. Absolute, not pressure difference.
 Actual Mean Injection Pressure [MPa]

 Injection Pressure Standard Deviation [MPa]
Injection pressure Standard deviation.
 Injection Pressure Standard Deviation [MPa]

 Injection Pressure Uncertainty [MPa]
Mean injection pressure Uncertainty.
 Injection Pressure Uncertainty [MPa]

 Actual Mean Fuel Temperature [K]
Actual mean fuel temperature.
 Actual Mean Fuel Temperature [K]

 Mean Fuel Temperature Standard Deviation [K]
Fuel temperature Standard deviation.
 Mean Fuel Temperature Standard Deviation [K]

 Mean Fuel Temperature Uncertainty [K]
Mean fuel temperature Uncertainty.
 Mean Fuel Temperature Uncertainty [K]

 Mean Nozzle Temperature [K]
Mean nozzle temperature.
 Mean Nozzle Temperature [K]

 Mean Nozzle Temperature Standard Deviation [K]
Nozzle temperature Standard deviation.
 Mean Nozzle Temperature Standard Deviation [K]

 Mean Nozzle Temperature Uncertainty [K]
Nozzle temperature Uncertainty.
 Mean Nozzle Temperature Uncertainty [K]

 Mean Mass Rate of Injection [mg/ms]
Mean mass rate of injection versus time.
 Mean Mass Rate of Injection [mg/ms]

 Rate of Injection Standard Deviation [mg/ms]
Rate of injection Standard deviation vs time.
 Rate of Injection Standard Deviation [mg/ms]

 Rate of Injection Uncertainty [mg/ms]
Mean rate of injection Uncertainty vs time.
 Rate of Injection Uncertainty [mg/ms]

 Estimated Injection Duration [ms]
Average injection duration determined by attenuation of HeNe laser positioned 7 mm in front of injector.
 Estimated Injection Duration [ms]

 Injection Duration Standard Deviation [ms]
Injection duration Standard deviation.
 Injection Duration Standard Deviation [ms]

 Injection Duration Uncertainty [ms]
injection duration Uncertainty.
 Injection Duration Uncertainty [ms]

 Estimated Injection Mass [mg]
Injected mass estimated from measured injection duration, and using injector calibration. See Equation 4 from here. Injector opening and closing effects are included by subtracting 0.15 ms from the measured injection duration for use in Eq. 4.
 Estimated Injection Mass [mg]

 Injection Mass Standard Deviation [mg]
Injection mass Standard deviation.
 Injection Mass Standard Deviation [mg]

 Injection Mass Uncertainty [mg]
Mean injection mass Uncertainty.
 Injection Mass Uncertainty [mg]

 Steady Flow Discharge Coefficient
Discharge coefficient, steady flow.
 Steady Flow Discharge Coefficient

 Steady Flow Discharge Coefficient Uncertainty
Discharge coefficient Uncertainty.
 Steady Flow Discharge Coefficient Uncertainty

 Steady Flow Are Contraction Coefficient
Area contraction coefficient for steady flow.
 Steady Flow Are Contraction Coefficient

 Area Contraction Coefficient Uncertainty
Area contraction coeff Uncertainty.
 Area Contraction Coefficient Uncertainty

 Actual Effective Nozzle Diameter [mm]
Actual effective nozzle diameter.
 Actual Effective Nozzle Diameter [mm]

 Actual Nozzle Diameter Uncertainty [mm]
Actual nozzle diameter Uncertainty.
 Actual Nozzle Diameter Uncertainty [mm]

 Actual Upstream Nozzle and Injector Geometry
Actual upstream nozzle and injector geometry, K factor.
 Actual Upstream Nozzle and Injector Geometry

 Actual Upstream Nozzle Geometry Uncertainty
Actual upstream nozzle geometry Uncertainty.
 Actual Upstream Nozzle Geometry Uncertainty

 Needle Position vs Time [mm]
Needle position vs time.
 Needle Position vs Time [mm]

 Needle Position vs Time Uncertainty [mm]
Needle position vs time Uncertainty.
 Needle Position vs Time Uncertainty [mm]

 Injection Lag [ms]
Time for spray to reach laser at 7mm. needed for past Sandia data.
 Injection Lag [ms]

 Fuel Properties
Link to various fuel properties.
 Fuel Properties

 Liquid Length [mm]
The maximum extent of liquidphase spray penetration during injection. Description of liquidlength measurement.
 Liquid Length [mm]

 Liquid Length Standard Deviation [mm]
Liquid length Standard deviation.
 Liquid Length Standard Deviation [mm]

 Liquid Length Uncertainty [mm]
Liquid length mean Uncertainty.
 Liquid Length Uncertainty [mm]

 LiftOff Length [mm]
Axial distance from injector to location of hightemperature reaction. Description of liftoff length measurement.
 LiftOff Length [mm]

 Liftoff Length Standard Deviation [mm]
Liftoff length Standard deviation.
 Liftoff Length Standard Deviation [mm]

 Liftoff Length Uncertainty [mm]
Liftoff length mean Uncertainty.
 Liftoff Length Uncertainty [mm]

 Ignition Delay of Pressure Rise [ms]
Time difference from start of injection, now defined as the time when spray first leaves the injector, until hightemperature (rather than firststage) ignition and combustion (the premixed burn). Detailed description. Pressure threshold must be selected for each condition to ensure that the pressure rise corresponds to the start of highT combustion, as this threshold is different for different rates of injection, ignition delays, cool flame heat release, and so forth.
 Ignition Delay of Pressure Rise [ms]

 Ignition Delay Standard Deviation [ms]
Ignition delay Standard deviation.
 Ignition Delay Standard Deviation [ms]

 Ignition Delay Uncertainty [ms]
Ignition delay mean Uncertainty.
 Ignition Delay Uncertainty [ms]

 Ignition Delay of HighTemperature Chemiluminescence [ms]
Time difference from start of injection until hightemperature (rather than firststage) ignition and combustion (the premixed burn). Defined as the time when luminosity reaches 50% of steady hightemperature chemiluminescence (not soot luminosity). See detailed description.
 Ignition Delay of HighTemperature Chemiluminescence [ms]

 Ignition Delay Based on Luminosity Standard Deviation [ms]
Ignition delay Standard deviation.
 Ignition Delay Based on Luminosity Standard Deviation [ms]

 Ignition Delay Based on Luminosity Uncertainty [ms]
Ignition delay mean Uncertainty.
 Ignition Delay Based on Luminosity Uncertainty [ms]

 Pressure Rise [MPa]
Text file giving: time relative to start of injection [ms], speed of sound corrected time relative to start of injection [ms], raw pressure rise data, smooth pressure rise data, pressure rise standard deviation, pressure rise uncertainty, absolute pressure, ROHR, and total heat release. Detailed description.
 Pressure Rise [MPa]

 Jet Penetration [mm]
Text file giving the penetration distance of the jet/vapor boundary versus time. Detailed description.
 Jet Penetration [mm]

 Flame Length [mm]
Axial length from injector to stoichiometric mixture of flame. For ECN3 defined as 10% of peak luminosity
 Flame Length [mm]

 Spread Angle[degree]
A text file called “spreadAngle.txt” could have SA versus time, description of definition/threshold for the angle, uncertainty, etc..
 Spread Angle[degree]

 Mixing
2D data includes time ASI, F/A ratio, Uncertainty, Instantaneous images, whatever.
 Mixing

 Liquid Volume
Liquid volume fraction data, links.
 Liquid Volume

 Droplet Diameter [mm]
Droplet diameter distribution vs time ASI.
 Droplet Diameter [mm]

 Spray Velocity [m/s]
Velocity and turbulence within spray.
 Spray Velocity [m/s]

 Combustion Species
Mole or mass fraction of combustion products, radicals or intermediates. Planar images or other spatial distributions given as text files.
 Combustion Species

 Soot Volume Fraction [ppm]
Three tabdelimited text files giving the soot volume fraction distribution of the jet crosssection. Soot volume fraction file has units of partspermillion (ppm). Axial distance, x, and radial distance, y, files have units of mm. The dimensions of the soot volume fraction array match the axial and radial dimensions, respectively. Detailed description of soot measurement.
 Soot Volume Fraction [ppm]

 HighSpeed Movies
Links to movies. Examples include chemiluminescence, soot, schlieren, shadowgraph, liquid scatter or extinction. Scale should be included. Preferred in [mm]
 HighSpeed Movies

 Additional Files
Additional data and description for a given condition.
 Additional Files

 File Base Name
Experimental naming structure plus fuel type, fuel temperature, and injector duration.
 File Base Name

 Date
Date experiment was performed.
 Date
 References
List references to data/experiment.