4.7 Article

Modeling of shock-induced force on an isolated particle in water and air

Journal

PHYSICS OF FLUIDS
Volume 34, Issue 1, Pages -

Publisher

AIP Publishing
DOI: 10.1063/5.0067801

Keywords

-

Funding

  1. Office of Naval Research under the Naval Undersea Research Program (NURP) [N000141812478]
  2. U.S. Department of Energy, National Nuclear Security Administration, Advanced Simulation and Computing Program, as a Cooperative Agreement under the Predictive Science Academic Alliance Program [DE-NA0002378]
  3. U.S. Department of Defense (DOD) [N000141812478] Funding Source: U.S. Department of Defense (DOD)

Ask authors/readers for more resources

Predicting the force on an isolated particle when a shock wave passes over it is an important problem in natural and industrial applications. The force on the particle has been observed to exhibit a nonmonotonic behavior with a sharp peak when the shock wave is located halfway across the particle. This nonmonotonic behavior is due to the unsteady nature of the compression and rarefaction waves that radiate as the shock wave diffracts around the particle, making it unpredictable with a quasi-steady model. An accurate force model must consider the unsteady nature of the flow and the sharp discontinuities in flow properties caused by the shock wave.
The prediction of force on an isolated particle, while a shock is passing over it, is an important problem in many natural and industrial applications. Although the flow monotonically changes from the pre-shock to the post-shock state, the particle's force has been observed to behave nonmonotonically with a sharp peak when the shock is located halfway across the particle. This nonmonotonic behavior is due to the unsteady nature of the compression and rarefaction waves that radiate as the shock diffracts around the particle and, therefore, cannot be predicted by a quasi-steady model. An accurate force model must account for the unsteady nature of the flow and the sharp discontinues in the flow properties across the shock. In this work, we test four different inviscid models and observe that the compressible Maxey-Riley-Gatignol (C-MRG) model is the most accurate based on comparison with results from particle-resolved inviscid simulations at two different Mach numbers for both water and air as the medium. The C-MRG model is first demonstrated to predict the force on a stationary particle accurately and then extended to capture the force on a moving particle. Numerical complexities regarding the implementation of the C-MRG model are also discussed.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available