Large-Eddy Simulation of Coaxial LN2/GH2 Injection at Trans- and Supercritical Conditions

摘要: Large-eddy simulations are carried out for the coaxial injection of liquid nitrogen and preheated hydrogen at supercritical pressures. The conditions similar to that in typical liquid-propellant rocket combustors. By using as a model gas, mixing process is studied without interference with chemical reactions. An analysis thermodynamic arise shear layer reveals local phase separation may occur if condition transcritical. A novel volume-translation method on basis cubic Peng–Robinson equation state introduced use multispecies large-eddy tested both trans- conditions. new corrects deficiencies transcritical regime minimal extra computational cost. Two independently developed simulation codes used results compared. outcome indicates t...