TY - GEN
T1 - The dynamics of inertial particles in underexpanded jets
T2 - AIAA Scitech Forum, 2020
AU - Kim, Taehoon
AU - Ni, Rui
AU - Capecelatro, Jesse
AU - Yao, Yuan
AU - Shallcross, Gregory
AU - Mehta, Manish
AU - Rabinovitch, Jason
N1 - Publisher Copyright:
© 2020, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2020
Y1 - 2020
N2 - Although the dynamics of heavy inertial particles interacting with complex flow has been studied extensively, most previous works focused on the incompressible flow regime, and the understanding of particle-laden flow in the sonic to supersonic regimes is still limited. Here, we introduce a new particle-laden high-speed jet facility to fill this gap. For this facility, to control both the mass loading and particle slip velocity independently, a particle feeding system consisting of a particle injector and a particle accelerator was included in the jet facility. The information of both phases were obtained using the ultra-high-speed diagnostic systems by leveraging a camera that can operate at 2-10 millions fps. The gas-phase dynamics was acquired using a Schlieren imaging system and the particle phase was measured using a particle shadow tracking method. Measurements of both the particle-free and particle-laden underexpanded jets in the nearfield zone were acquired, and their statistics are discussed. These new results will provide a rich dataset both for studying compressible multiphase flow problems and for validating numerical schemes developed for this regime.
AB - Although the dynamics of heavy inertial particles interacting with complex flow has been studied extensively, most previous works focused on the incompressible flow regime, and the understanding of particle-laden flow in the sonic to supersonic regimes is still limited. Here, we introduce a new particle-laden high-speed jet facility to fill this gap. For this facility, to control both the mass loading and particle slip velocity independently, a particle feeding system consisting of a particle injector and a particle accelerator was included in the jet facility. The information of both phases were obtained using the ultra-high-speed diagnostic systems by leveraging a camera that can operate at 2-10 millions fps. The gas-phase dynamics was acquired using a Schlieren imaging system and the particle phase was measured using a particle shadow tracking method. Measurements of both the particle-free and particle-laden underexpanded jets in the nearfield zone were acquired, and their statistics are discussed. These new results will provide a rich dataset both for studying compressible multiphase flow problems and for validating numerical schemes developed for this regime.
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U2 - 10.2514/6.2020-1326
DO - 10.2514/6.2020-1326
M3 - Conference contribution
AN - SCOPUS:85091934305
SN - 9781624105951
T3 - AIAA Scitech 2020 Forum
SP - 1
EP - 10
BT - AIAA Scitech 2020 Forum
Y2 - 6 January 2020 through 10 January 2020
ER -