How do shock waves interact with two phase flow?
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Shock waves interact with two-phase flow in various ways. The behavior of the flow near the outlet of a nozzle and the presence of shock waves are influenced by the assumptions made regarding liquid-gas interaction terms and momentum homogeneity . When shock waves interact with dispersed evaporating water droplets, novel two-phase flow phenomena are observed, including dispersed droplet distribution, spatial oscillations of pressure and droplet quantities, and strong oscillations in droplet spatial distribution . The leading shock wave can be attenuated to a sonic or subsonic wave due to momentum transfer to the droplets at the shock front, resulting in a decrease in strength and propagation speed . The presence of two-phase flow, specifically the volume fraction of droplets, affects the recompression phenomenon and the stability of the region between the leading shock and two-phase contact surface . The accurate calculation of shock wave velocity in two-phase flow is important for assessing the risk of water hammer in pressure pipelines .
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01 Jan 2021 4 Citations | The paper discusses the study of shock wave velocity in two-phase pressure flow, but it does not specifically mention how shock waves interact with two-phase flow. |
| The paper investigates the interactions between shock waves and dispersed evaporating water droplets in two-phase gas-droplet flows. It discusses the attenuation of shock waves, droplet evaporation, motion, and heating due to interphase exchanges of mass, momentum, and energy. | |
18 Citations | The paper discusses the interactions between shock waves and dispersed evaporating water droplets in two-phase gas-droplet flows. It explains that the leading shock can be attenuated when the droplet volume fraction is large and/or the incident shock Mach number is low. The attenuation is mainly caused by momentum transfer to the droplets at the shock front. The paper also mentions the effects of droplet evaporation, motion, and heating on the shock wave. |
Open access•Posted Content | The paper discusses the interactions between shock waves and two-phase flow, specifically the interactions between propagating shocks and evaporating water droplets. |
| The paper provides a preliminary insight into the effect of different formulations for liquid-gas interaction terms on the shock waves in over-expanded flash nozzles simulations. It suggests that these formulations have a fundamental effect on the flow behavior and the presence of shock waves. |
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