Air flows isentropically through a variable-area duct. At section 1, A₁ = 23.5 cm², p₁ = 325 kPa, p₁ = 1.75 kg/m³, and Ma₁ = 0.25. At section 2, the area is exactly the same, but the flow is much faster.

Elements Of Electromagnetics
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Determine the sonic throat area

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Air flows isentropically through a variable-area duct. At section 1, A₁ = 23.5 cm², p₁ = 325 kPa, p₁ = 1.75
kg/m³, and Ma₁ = 0.25. At section 2, the area is exactly the same, but the flow is much faster.
Transcribed Image Text:Air flows isentropically through a variable-area duct. At section 1, A₁ = 23.5 cm², p₁ = 325 kPa, p₁ = 1.75 kg/m³, and Ma₁ = 0.25. At section 2, the area is exactly the same, but the flow is much faster.
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