As flow disturbance increases, spectral broadening

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Multiple Choice

As flow disturbance increases, spectral broadening

Explanation:
Spectral broadening is due to a wider distribution of flow velocities within the sampled volume. When flow is laminar, velocities are relatively uniform, producing a narrow Doppler spectrum. As flow becomes disturbed or turbulent, many eddies and velocity directions occur, causing Doppler shifts over a broader range. The more disturbance, the wider the spectrum becomes, which is why spectral broadening increases with flow disturbance.

Spectral broadening is due to a wider distribution of flow velocities within the sampled volume. When flow is laminar, velocities are relatively uniform, producing a narrow Doppler spectrum. As flow becomes disturbed or turbulent, many eddies and velocity directions occur, causing Doppler shifts over a broader range. The more disturbance, the wider the spectrum becomes, which is why spectral broadening increases with flow disturbance.

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