The pressure coefficient point is -3.9184.
What is pressure coefficient?
In fluid dynamics, the pressure coefficient is a dimensionless quantity that characterises the relative pressures throughout a flow field. In aerodynamics and hydrodynamics, the pressure coefficient is utilised. The pressure coefficient at a point near a body is often independent of body size in aerodynamics and hydrodynamics. As a result, an engineering model can be tested in a wind tunnel or water tunnel, pressure coefficients can be determined at critical locations around the model, and these pressure coefficients can be used to predict fluid pressure at those critical locations around a full-size aircraft or boat with confidence.
Given,
Velocity, Vinfinity = 50m/s
Pressure, P=9.5×10⁴N/m²
=0.95×10⁵ N/m²
Then, pressure coefficient is,
Cp= (P- P∞)/(1/2e∞V∞²)
Cp=0.95×10⁵-1.01×10⁵/(1/2×1.225×50²)
∴Cp=-3.9184
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