### Abstract

Modern air traffic control systems in airports use high-speed ground tracking radars usually rotating at 60 rpm. The flow induced vibration and noise generation of the newly developed radar antennas are the two serious problems that jeopardize the successful deployment of the new ground aircraft tracking systems. The present study is an attempt to understand the viscous flow characteristics around a typical radar antenna cross section via computations. After a steady-state validation of the computations, a parametric study of possible new shape designs for the antenna is discussed. The present computations are validated by using a well-known experimental data set for a cylinder in cross flow, at the operational Reynolds number of 426,000. The predicted drag coefficient for the cylinder agrees well with the measured CD values. Significant aerodynamic drag reductions via careful shape design of the antenna are possible. Elongating the original antenna cross section in the chordwise direction by keeping the antenna height constant is an effective aerodynamic solution for further drag reductions.

Original language | English (US) |
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Title of host publication | Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11 |

Pages | 699-709 |

Number of pages | 11 |

State | Published - Dec 1 2006 |

Event | 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11 - Honolulu, HI, United States Duration: Feb 26 2006 → Mar 2 2006 |

### Publication series

Name | Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11 |
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Volume | 2 |

### Other

Other | 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11 |
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Country | United States |

City | Honolulu, HI |

Period | 2/26/06 → 3/2/06 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Mechanical Engineering

### Cite this

*Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11*(pp. 699-709). (Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11; Vol. 2).

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*Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11.*Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11, vol. 2, pp. 699-709, 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11, Honolulu, HI, United States, 2/26/06.

**Aerodynamic drag characteristics and shape design of a radar antenna used for airport ground traffic control.** / Gumusel, Baris; Kavurmacioglu, Levent; Camci, Cengiz.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Aerodynamic drag characteristics and shape design of a radar antenna used for airport ground traffic control

AU - Gumusel, Baris

AU - Kavurmacioglu, Levent

AU - Camci, Cengiz

PY - 2006/12/1

Y1 - 2006/12/1

N2 - Modern air traffic control systems in airports use high-speed ground tracking radars usually rotating at 60 rpm. The flow induced vibration and noise generation of the newly developed radar antennas are the two serious problems that jeopardize the successful deployment of the new ground aircraft tracking systems. The present study is an attempt to understand the viscous flow characteristics around a typical radar antenna cross section via computations. After a steady-state validation of the computations, a parametric study of possible new shape designs for the antenna is discussed. The present computations are validated by using a well-known experimental data set for a cylinder in cross flow, at the operational Reynolds number of 426,000. The predicted drag coefficient for the cylinder agrees well with the measured CD values. Significant aerodynamic drag reductions via careful shape design of the antenna are possible. Elongating the original antenna cross section in the chordwise direction by keeping the antenna height constant is an effective aerodynamic solution for further drag reductions.

AB - Modern air traffic control systems in airports use high-speed ground tracking radars usually rotating at 60 rpm. The flow induced vibration and noise generation of the newly developed radar antennas are the two serious problems that jeopardize the successful deployment of the new ground aircraft tracking systems. The present study is an attempt to understand the viscous flow characteristics around a typical radar antenna cross section via computations. After a steady-state validation of the computations, a parametric study of possible new shape designs for the antenna is discussed. The present computations are validated by using a well-known experimental data set for a cylinder in cross flow, at the operational Reynolds number of 426,000. The predicted drag coefficient for the cylinder agrees well with the measured CD values. Significant aerodynamic drag reductions via careful shape design of the antenna are possible. Elongating the original antenna cross section in the chordwise direction by keeping the antenna height constant is an effective aerodynamic solution for further drag reductions.

UR - http://www.scopus.com/inward/record.url?scp=84866935711&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84866935711&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84866935711

SN - 9781604236774

T3 - Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11

SP - 699

EP - 709

BT - Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11

ER -