Modeling spray impingement using linear stability theories for droplet shattering
This paper compares several linear-theory-based models for droplet shattering employed for simulations of spray impingement on flat wall surface or a circular cylinder. Numerical simulations are conducted using a stochastic separated flow (SSF) technique that includes sub-models for droplet dynamics and impact. Results for spray impingement over a flat wall indicate that the linear theory applicable for a single droplet impact over-predicts the number of satellite (or secondary) droplets upon shattering when compared to experimental data. The causes for the observed discrepancies are discussed. Numerical simulation results for spray impingement over for a circular cylinder in cross flow are obtained and discussed.
- Research Organization:
- Sandia National Laboratories
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 947270
- Report Number(s):
- SAND2005-1480J
- Journal Information:
- Proposed for publication in the International Journal of Heat and Fluid Flow., Journal Name: Proposed for publication in the International Journal of Heat and Fluid Flow.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Lagrangian simulations of spray interaction with a surface using a stochastic multi-regime impingement model
Numerical investigation of micro-pore formation during substrate impact of molten droplets in spraying processes