LI Bo, HU Guo-hui, ZHOU Zhe-wei. Numerical Simulation of Flow in the Hartmann Resonance Tube and Flow in the Ultrasonic Gas Atomizer[J]. Applied Mathematics and Mechanics, 2007, 28(11): 1261-1271.
Citation: LI Bo, HU Guo-hui, ZHOU Zhe-wei. Numerical Simulation of Flow in the Hartmann Resonance Tube and Flow in the Ultrasonic Gas Atomizer[J]. Applied Mathematics and Mechanics, 2007, 28(11): 1261-1271.

Numerical Simulation of Flow in the Hartmann Resonance Tube and Flow in the Ultrasonic Gas Atomizer

  • Received Date: 2007-08-27
  • Rev Recd Date: 2007-09-17
  • Publish Date: 2007-11-15
  • The gas flow in the Hartmann resonance tube was numerically investigated by the finite volume method based on the Roe solver. The oscillation of the flow was studied with the presence of a needle actuator set along the nozzle axis. Numerical results agree well with the theoretical and experimental results available. Numerical results indicate that the resonance mode of the resonance tube will switch by means of removing or adding the actuator. The gas flow in the ultrasonic gas atomization (USGA) nozzle was also studied by the same numerical methods. Oscillation caused by the Hartmann resonance tube structure, coupled with a secondary resonator, in the USGA nozzle was investigated. Effects of the variation of parameters on the oscillation were studied. The mechanism of the transition of subsonic flow to supersonic flow in the USGA nozzle was also discussed based on numerical results.
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