TY - GEN
T1 - Towards predicting supersonic, hot jet noise
AU - Cai, Xiaodan
AU - Ladeinde, Foluso
AU - Alabi, Kehinde
PY - 2007
Y1 - 2007
N2 - The noise from supersonic jet aircraft during landing and taking-off poses serious environmental challenge to military bases. Two RANS-based acoustic source models have been used to calculate the noise signature from a supersonic, hot jet flow, one is based on the MGBK method from Khavaran et al. [12] and the other one is from Tarn and Auriault[13]. The aerodynamic predictions from our RANS calculation with high-order numerical schemes and modified k-s models agree well with experimental data. However, it is found that both acoustic models have only limited success in predicting the far-field sound spectrum especially for shallow aft-angles, while the MGBK method has a slightly better performance over Tam's method for the prediction of overall sound pressure levels. The large-eddy simulation approach is suggested to use for predicting supersonic, hot jet noise.
AB - The noise from supersonic jet aircraft during landing and taking-off poses serious environmental challenge to military bases. Two RANS-based acoustic source models have been used to calculate the noise signature from a supersonic, hot jet flow, one is based on the MGBK method from Khavaran et al. [12] and the other one is from Tarn and Auriault[13]. The aerodynamic predictions from our RANS calculation with high-order numerical schemes and modified k-s models agree well with experimental data. However, it is found that both acoustic models have only limited success in predicting the far-field sound spectrum especially for shallow aft-angles, while the MGBK method has a slightly better performance over Tam's method for the prediction of overall sound pressure levels. The large-eddy simulation approach is suggested to use for predicting supersonic, hot jet noise.
UR - https://www.scopus.com/pages/publications/34250842549
M3 - Conference contribution
AN - SCOPUS:34250842549
SN - 1563478900
SN - 9781563478901
T3 - Collection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
SP - 10028
EP - 10043
BT - Collection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
T2 - 45th AIAA Aerospace Sciences Meeting 2007
Y2 - 8 January 2007 through 11 January 2007
ER -