Abstract
The water-entering process of high-speed projectile under different Mach numbers was simulated to analyze the effect of fluid compressibility on the flow field characteristics, cavity shape and hydrodynamic characteristics. The simulated results with and without considering the fluid compressibility were compared by inserting Tait equation of state based on volume-of-fluid multiphase flow model. The results show that the flow field density and pressure gradient increase when considering the compressibility of liquid; the cavitation radius gradually decreases with the increase in Mach number. At the supersonic speed, a deviation shock wave is generated near the projectile head; the cavitation becomes a local cavitation, and the resistance to the projectile greatly increases; and the fluid compressibility affects the supercavitation flow at more than 0.5 Ma.
| Translated title of the contribution | Effect of Liquid Compressibility on Supercavitation Flow of High-speed Projectiles |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 72-78 |
| Number of pages | 7 |
| Journal | Binggong Xuebao/Acta Armamentarii |
| Volume | 41 |
| DOIs | |
| Publication status | Published - 1 Apr 2020 |