Two-dimensional simulations of wake vortex detection using Rass

Said Boluriaan, Philip John Morris

Research output: Contribution to conferencePaper

Abstract

A parallel code is developed to numerically simulate wake vortex detection using a Radio Acoustic Sounding System (RASS). The code is written in Fortran 90 with the Message Passing Interface (MPI) for parallel implementation. The numerical simulation solves simultaneously the linearized Euler equations for a non-uniform mean flow and the Maxwell equations for a non-homogeneous medium. The radar transmitter and receiver antennas are modeled using an array of point sources and a beamforming technique, respectively. Many features of the RASS are explored using the numerical simulation. First, a uniform mean flow is considered and the RASS simulation is performed for two different types of incident acoustic field: a short single frequency acoustic pulse and a continuous broadband acoustic source. Both monostatic and bistatic configurations are examined and their results are compared. Taylor and Oseen vortex velocity profiles are used as a vortex model, and the mean flow fields are reconstructed from the backscattered electromagnetic signal using the Abel transform. The effect of radar beam width is also shown.

Original languageEnglish (US)
StatePublished - Dec 1 2001
Event39th Aerospace Sciences Meeting and Exhibit 2001 - Reno, NV, United States
Duration: Jan 8 2001Jan 11 2001

Other

Other39th Aerospace Sciences Meeting and Exhibit 2001
CountryUnited States
CityReno, NV
Period1/8/011/11/01

Fingerprint

acoustic sounding
wakes
vortex
Vortex flow
acoustics
Acoustics
vortices
radar transmitters
radar receivers
radar beams
simulation
acoustic frequencies
systems simulation
beamforming
radio
messages
Maxwell equation
point sources
Radar transmitters
Radar receivers

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Aerospace Engineering

Cite this

Boluriaan, S., & Morris, P. J. (2001). Two-dimensional simulations of wake vortex detection using Rass. Paper presented at 39th Aerospace Sciences Meeting and Exhibit 2001, Reno, NV, United States.
Boluriaan, Said ; Morris, Philip John. / Two-dimensional simulations of wake vortex detection using Rass. Paper presented at 39th Aerospace Sciences Meeting and Exhibit 2001, Reno, NV, United States.
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Boluriaan, S & Morris, PJ 2001, 'Two-dimensional simulations of wake vortex detection using Rass' Paper presented at 39th Aerospace Sciences Meeting and Exhibit 2001, Reno, NV, United States, 1/8/01 - 1/11/01, .

Two-dimensional simulations of wake vortex detection using Rass. / Boluriaan, Said; Morris, Philip John.

2001. Paper presented at 39th Aerospace Sciences Meeting and Exhibit 2001, Reno, NV, United States.

Research output: Contribution to conferencePaper

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AU - Morris, Philip John

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AB - A parallel code is developed to numerically simulate wake vortex detection using a Radio Acoustic Sounding System (RASS). The code is written in Fortran 90 with the Message Passing Interface (MPI) for parallel implementation. The numerical simulation solves simultaneously the linearized Euler equations for a non-uniform mean flow and the Maxwell equations for a non-homogeneous medium. The radar transmitter and receiver antennas are modeled using an array of point sources and a beamforming technique, respectively. Many features of the RASS are explored using the numerical simulation. First, a uniform mean flow is considered and the RASS simulation is performed for two different types of incident acoustic field: a short single frequency acoustic pulse and a continuous broadband acoustic source. Both monostatic and bistatic configurations are examined and their results are compared. Taylor and Oseen vortex velocity profiles are used as a vortex model, and the mean flow fields are reconstructed from the backscattered electromagnetic signal using the Abel transform. The effect of radar beam width is also shown.

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Boluriaan S, Morris PJ. Two-dimensional simulations of wake vortex detection using Rass. 2001. Paper presented at 39th Aerospace Sciences Meeting and Exhibit 2001, Reno, NV, United States.