P.S: Check your final solution for any cells in the domain does not have fluid at a state where you modified properties value (Read Pham et al. International Journal of Heat and Fluid Flow, 61, 379–394. An approach for establishing the performance maps of the sc-CO2compressor: Development and qualification by means of CFD simulations. H., Boutin, O., Tothill, M., Quenaut, J., … Saez, M. An abrupt change in properties causes the solution to not to converge.Ī possible solution may be create a look-up table with continuous properties change as in "Pham, H. The NIST REFPROP program is designed to provide the most accurate thermophysical properties currently available for pure uids and their mixtures. During initial iterations, the pressure and temperature may fall into the liquid or vapor state. Near critical point, the NIST does not converge and gives TPFlash Error!.Ģ. Site licenses are available for REFPROP version 10. 50 off for existing site license customers. Use the REFPROP DLL in your Intranet applications with your site license. Pressure and temperature decreases due to the expansion of the fluid in the nozzle and conditions moves close to the critical point (saturation dome). NIST REFPROP PROGRAM LICENSE Download Site License Agreement version 10. I could not overcome this problem due to two reasons:-ġ. Real gas NIST model problem - CFD Online Discussion Forums
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