Shock tube measurements of the equation of state of argon Academic Article uri icon


  • We have investigated the equation of state of argon at elevated temperatures and pressures using a new shock tube method. Temperatures in the range of 1280 to 1830 K, and pressures from 6 to 50 MPa were generated behind reflected shock waves in test gas mixtures of argon with trace amounts of CO and H2added. Density was determined from reflected shock pressure and incident shock speed measurements using the shock-jump relations. Temperature was determined from the modeling of the 4.7 sum infrared emission of the fundamental vibrational band of thermally-equilibrated CO. The experimentally determined argon P-p-T data points are in good agreement with the static-cell data of LeCocq and an extrapolation of the equation of state of Stewart and Jacobsen. © 1998 Plenum Publishing Corporation.

author list (cited authors)

  • Davidson, D. F., Bates, R., Petersen, E. L., & Hanson, R. K.

publication date

  • November 1998