1. noxycon – Nominal Ambient Oxygen Concentration [%], O₂
   Mole fraction of ambient oxygen in the vessel. Used for simulating the use of EGR or creating an inert (0% O₂) environment. Concentrations of other major species (N2, CO2, H2O)
2. ntemp – Nominal Ambient Temperature [K], T_a
   Gas temperature of the core region of the vessel. Uniformity of core temperature
3. ndensity – Nominal Ambient Density [kg/m³], ρ_a
   Gas density of the core region of the vessel.
4. norif – Nozzle Size or Orifice Diameter [mm], d
   Smallest diameter of injector nozzle. Detailed description of injector tips and orifice flow coefficients
5. nsernum – Nominal Serial Number
   Serial number.
6. nborif – Nominal Number of Orifices
   Number of orifices.
7. ninjpres – Nominal Injection Pressure Difference [MPa], DP_inj
   Difference between fuel injector pressure and ambient gas pressure.
8. ninjdur – Nominal Injector Duration [ms]
   Injection duration is actual hydraulic injection and not electronic command to injector.
9. nfuelt – Fuel Type
   Fuel type.
10. nfueltemp – Nominal Fuel Temperature [K], T_fl
    Nominal Fuel Temperature.
11. ninst – Institution
    Name of the institution that recorded select data.
12. fileBaseName – File Base Name
    Experimental naming structure plus fuel type, fuel temperature, and injector duration.
13. date – Date
    Date experiment was performed.
14. readme – Readme
    Readme.
15. refs – References
    List references to data/experiment.
16. keywords – Keywords
    Keywords in categories such as Evidence of Specific Physics, Diagnostics, etc.
17. oxycon – Actual Oxygen Concentration [%],
    Actual ambient oxygen mole fraction.
18. oxyconU – Actual Oxygen Concentration Uncertainty [%],
    Actual ambient oxygen mole fraction uncertainty.
19. ambComp – Ambient Components [%],
    Actual mole fraction for all species, major and minor species.
20. ambCompU – Ambient Components Uncertainty [%],
    Uncertainty for all species mole fraction, major and minor species.
21. MW – Ambient Molecular Weight [K]
    Ambient molecular weight.
22. Ta – Ambient Temperature at Ignition [K]
    Actual mean ambient core temperature at start of injection.
23. TaS – Ambient Temperature at Ignition Standard Deviation [K]
    Actual ambient core temperature Standard Deviation.
24. TaU – Ambient Temperature at Ignition Uncertainty [K]
    Actual mean ambient core temperature Uncertainty.
25. Tbulk – Bulk Temperature [K], T_b
    Mass-averaged bulk temperature (T_b) determined from the real-gas equation of state (P = Z &middot R &middot &#961 &middot T_b /MW), where &#961 is constant for a given experiment and P is pressure.
26. dens – Actual Ambient Density [kg/m³]
    Actual ambient density.
27. densS – Ambient Density After Ignition Standard Deviation [kg/m³],
    Actual ambient density Standard deviation.
28. densU – Ambient Density After Ignition Uncertainty [kg/m³],
    Actual mean ambient density Uncertainty.
29. densbulk – Bulk Density [kg/m3], ρ_b
    Mass-averaged bulk density. The initial density of combustion vessel charge, prior to preburn and diesel injection. Bulk density is constant for a given experimental simulation.
30. ambP – Ambient Pressure [MPa], P
    Mean ambient pressure.
31. Z – Ambient Compressibility Factor , Z
    P=Z·R·ρ_a·T_a
32. ZU – Ambient Compressibility Factor Uncertainty
    Compressibility factor at time of injection Uncertainty.
33. ambVelocity – Ambient Mean Velocity [m/s]
    Ambient mean velocity, could be link to spatially-resolved text file.
34. ambVelocityU – Ambient Mean Velocity Uncertainty [m/s]
    Ambient mean velocity Uncertainty.
35. ambVelTurbulence – Ambient Velocity Turbulence [m/s]
    Ambient velocity turbulence intensity; file.
36. ambVelTurbulenceU – Ambient Velocity Turbulence Uncertainty [m/s]
    Ambient velocity turbulence intensity Uncertainty; file.
37. vessGeom – Vessel Geometry
    Dimensions of vessel; could be 3d solid model, etc…
38. injP – Actual Mean Injection Pressure [MPa]
    Actual mean injection pressure. Absolute, not pressure difference.
39. injPS – Injection Pressure Standard Deviation [MPa]
    Injection pressure Standard deviation.
40. injPU – Injection Pressure Uncertainty [MPa]
    Mean injection pressure Uncertainty.
41. Tfuel – Actual Mean Fuel Temperature [K]
    Actual mean fuel temperature.
42. TfuelS – Mean Fuel Temperature Standard Deviation [K]
    Fuel temperature Standard deviation.
43. TfuelU – Mean Fuel Temperature Uncertainty [K]
    Mean fuel temperature Uncertainty.
44. Tnozzle – Mean Nozzle Temperature [K]
    Mean nozzle temperature.
45. TnozzleS – Mean Nozzle Temperature Standard Deviation [K]
    Nozzle temperature Standard deviation.
46. TnozzleU – Mean Nozzle Temperature Uncertainty [K]
    Nozzle temperature Uncertainty.
47. roi – Mean Mass Rate of Injection [mg/ms]
    Mean mass rate of injection versus time.
48. injDur – Estimated Injection Duration [ms]
    Average injection duration determined by attenuation of HeNe laser positioned 7 mm in front of injector.
49. injDurS – Injection Duration Standard Deviation [ms]
    Injection duration standard deviation.
50. injDurU – Injection Duration Uncertainty [ms]
    Injection duration uncertainty.
51. injMass – 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.
52. injMassS – Injection Mass Standard Deviation [mg]
    Injection mass Standard deviation.
53. injMassU – Injection Mass Uncertainty [mg]
    Mean injection mass Uncertainty.
54. Cd – Steady Flow Discharge Coefficient
    Discharge coefficient, steady flow.
55. CdU – Steady Flow Discharge Coefficient Uncertainty
    Discharge coefficient Uncertainty.
56. Ca – Steady Flow Are Contraction Coefficient
    Area contraction coefficient for steady flow.
57. CaU – Area Contraction Coefficient Uncertainty
    Area contraction coeff Uncertainty.
58. orifDiam – Actual Effective Nozzle Diameter [mm]
    Actual effective nozzle diameter.
59. orifDiamU – Actual Nozzle Diameter Uncertainty [mm]
    Actual nozzle diameter Uncertainty.
60. nozGeom – Actual Upstream Nozzle and Injector Geometry
    Actual upstream nozzle and injector geometry, K factor.
61. needlePos – Needle Position vs Time [mm]
    Needle position vs time.
62. needlePosU – Needle Position vs Time Uncertainty [mm]
    Needle position vs time Uncertainty.
63. fuelprops – Fuel Properties
    Link to various fuel properties.
64. liqlen – Liquid Length [mm]
    The maximum extent of liquid-phase spray penetration during injection.
65. jetpen – Jet Penetration [mm]
    Text file giving the penetration distance of the jet/vapor boundary versus time.
66. spreadAngle – Spread Angle[degrees]
    A text file called “spreadAngle.txt” could have SA versus time, description of definition/threshold for the angle, uncertainty, etc..
67. mixing – Mixing
    2D data includes time ASI, F/A ratio, Uncertainty, Instantaneous images, whatever.
68. pressCV – 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.
69. velocity – Velocity
    Velocity and turbulence within spray.
70. combSpecies – Combustion Species
    Mole or mass fraction of combustion products, radicals or intermediates. Planar images or other spatial distributions given as text files.
71. liqVol – Liquid Volume
    Liquid volume fraction data, links.
72. dropDia – Droplet Diameter [mm]
    Droplet diameter distribution vs time ASI.
73. movie – High-Speed Movies
    Links to movies. Examples include chemiluminescence, soot, schlieren, shadowgraph, liquid scatter or extinction. Scale should be included. Preferred in [mm].
74. AddFiles – Additional Files
    Additional data and description for a given condition.