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ONE-DIMENSIONAL THERMOACOUSTIC EFFECTS:
NON-RESONANT BEHAVIOR

One-dimensional waves (NON-LINEAR)
Momentum source at x=0
Rigid termination at x=0.5
Constant temperatures on the wall
Solution obtained from a direct numerical simulation (DNS) of the NS equations

Fluid Properties:

Pressure, Po	1.14e5 Pa
Temperature, To	298 K
Gas Constant, R	2076.9 J/kg.K
Viscosity	1.6e-5 N.s/m
Ratio of specific heats	1.666
Prandtl Number, Pr	6.75e-4

Operating Parameters:

Piston Velocity magnitude

20 m/s

Frequency

900 Hz

Drive Ratio

10.0%