Abstract
In the interest of assessing airfoil performance in heavy rain, a Lagrangian particle tracking scheme for a general body-fitted coordinate system has been developed and linked with a thin layer incompressible Navier-Stokes code. As raindrops impact an airfoil surface, splashed back droplets are accelerated by the air flow field, de-energizing the boundary layer and leaving it more susceptible to separation. Using an iterative particle-source-in-cell approach, a two-way coupled two-phase flow scheme has been developed to model this phenomenon. A body-force-like momentum source/sink term is added to the Navier-Stokes equations to account for the effect of particle drag on the air flow field. Results show a rain-induced decrease in airfoil lift due to premature flow separation that is qualitatively similar to that observed in experimental investigations.
| Original language | English (US) |
|---|---|
| Title of host publication | American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED |
| Publisher | Publ by ASME |
| Pages | 39-46 |
| Number of pages | 8 |
| Volume | 185 |
| ISBN (Print) | 0791813681 |
| State | Published - 1994 |
| Externally published | Yes |
| Event | Proceedings of the 1994 ASME Fluids Engineering Division Summer Meeting. Part 9 (of 18) - Lake Tahoe, NV, USA Duration: Jun 19 1994 → Jun 23 1994 |
Other
| Other | Proceedings of the 1994 ASME Fluids Engineering Division Summer Meeting. Part 9 (of 18) |
|---|---|
| City | Lake Tahoe, NV, USA |
| Period | 6/19/94 → 6/23/94 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
Application of a lagrangian particle tracking scheme in a body-fitted coordinate system. / Valentine, James R.; Decker, Rand.
American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED. Vol. 185 Publ by ASME, 1994. p. 39-46.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Application of a lagrangian particle tracking scheme in a body-fitted coordinate system
AU - Valentine, James R.
AU - Decker, Rand
PY - 1994
Y1 - 1994
N2 - In the interest of assessing airfoil performance in heavy rain, a Lagrangian particle tracking scheme for a general body-fitted coordinate system has been developed and linked with a thin layer incompressible Navier-Stokes code. As raindrops impact an airfoil surface, splashed back droplets are accelerated by the air flow field, de-energizing the boundary layer and leaving it more susceptible to separation. Using an iterative particle-source-in-cell approach, a two-way coupled two-phase flow scheme has been developed to model this phenomenon. A body-force-like momentum source/sink term is added to the Navier-Stokes equations to account for the effect of particle drag on the air flow field. Results show a rain-induced decrease in airfoil lift due to premature flow separation that is qualitatively similar to that observed in experimental investigations.
AB - In the interest of assessing airfoil performance in heavy rain, a Lagrangian particle tracking scheme for a general body-fitted coordinate system has been developed and linked with a thin layer incompressible Navier-Stokes code. As raindrops impact an airfoil surface, splashed back droplets are accelerated by the air flow field, de-energizing the boundary layer and leaving it more susceptible to separation. Using an iterative particle-source-in-cell approach, a two-way coupled two-phase flow scheme has been developed to model this phenomenon. A body-force-like momentum source/sink term is added to the Navier-Stokes equations to account for the effect of particle drag on the air flow field. Results show a rain-induced decrease in airfoil lift due to premature flow separation that is qualitatively similar to that observed in experimental investigations.
UR - http://www.scopus.com/inward/record.url?scp=0027927928&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0027927928&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0027927928
SN - 0791813681
VL - 185
SP - 39
EP - 46
BT - American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
PB - Publ by ASME
ER -