TY - GEN
T1 - Numerical Investigation of Drag and Heat Flux Reduction in Hypersonic Vehicle with Aerospike
AU - Xu, Yang
AU - Fang, Shuzhou
N1 - Publisher Copyright:
© 2022 ACM.
PY - 2022/6/24
Y1 - 2022/6/24
N2 - To reduce the aerodynamic and thermal load of hypersonic vehicle, the aerodynamic performance of a blunt body vehicle with a aerospike on its head is studied numerically. The influence of head shape and L/D (length-to-diameter) ratio of aerospike on flow field characteristics, drag and heat flux reduction was analyzed. The numerical results show that the aerospike can effectively reduce aerodynamic and thermal load. The optimal configuration can obtain 68.55% drag reduction efficiency and 75.23% heat flux reduction efficiency. The drag and heat flux reduction performance of conical aerospike are the worst, the drag reduction performance of hemispherical aerospike is the best, and the heat flux reduction performance of flat-face aerospike is the best. Increasing the L/D ratio of aerospike significantly improves the drag and heat flux reduction performance. With the L/D ratio of the aerospike increasing, both the drag reduction efficiency and the heat flux reduction efficiency increase, but the change rates of drag reduction efficiency and heat flux reduction efficiency decrease.
AB - To reduce the aerodynamic and thermal load of hypersonic vehicle, the aerodynamic performance of a blunt body vehicle with a aerospike on its head is studied numerically. The influence of head shape and L/D (length-to-diameter) ratio of aerospike on flow field characteristics, drag and heat flux reduction was analyzed. The numerical results show that the aerospike can effectively reduce aerodynamic and thermal load. The optimal configuration can obtain 68.55% drag reduction efficiency and 75.23% heat flux reduction efficiency. The drag and heat flux reduction performance of conical aerospike are the worst, the drag reduction performance of hemispherical aerospike is the best, and the heat flux reduction performance of flat-face aerospike is the best. Increasing the L/D ratio of aerospike significantly improves the drag and heat flux reduction performance. With the L/D ratio of the aerospike increasing, both the drag reduction efficiency and the heat flux reduction efficiency increase, but the change rates of drag reduction efficiency and heat flux reduction efficiency decrease.
KW - Aerospike
KW - Drag reduction
KW - Heat flux reduction
KW - Hypersonic flow
UR - http://www.scopus.com/inward/record.url?scp=85139160951&partnerID=8YFLogxK
U2 - 10.1145/3547578.3547593
DO - 10.1145/3547578.3547593
M3 - Conference contribution
AN - SCOPUS:85139160951
T3 - ACM International Conference Proceeding Series
SP - 94
EP - 102
BT - ICCMS 2022 - Proceedings of the 14th International Conference on Computer Modeling and Simulation
PB - Association for Computing Machinery
T2 - 14th International Conference on Computer Modeling and Simulation, ICCMS 2022
Y2 - 24 June 2022 through 26 June 2022
ER -