

MCQOPTIONS
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1. |
Consider the following terms:MV → Material Volume (Control Mass)V → Control VolumeS → Control SurfaceB → Flow propertyb → Intensive value of B in any small element of the fluidρ → Density of the flowt → Instantaneous time\( \vec{v} \) → Velocity of fluid entering or leaving the control volume\( \vec{n} \) → Outward normal vector to control surfaceWhich of these equations is the mathematical representation of Reynolds transport theorem in the above terms? |
A. | \((\frac{dB}{dt})_{MV} = \frac{d}{dt}(\int_sb \rho dS) + \int_vb \rho \vec{v}.\vec{n} dV\) |
B. | \((\frac{dB}{dt})_{MV} = \frac{d}{dt}(\int_vb \rho dV) + \int_sb \rho \vec{v}.\vec{n} dS\) |
C. | \((\frac{dB}{dt})_V = \frac{d}{dt}(\int_{MV}b \rho MV) + \int_sb \rho \vec{v}.\vec{n} dS\) |
D. | \((\frac{dB}{dt})_{MV} = \int_vb \rho dV + \frac{d}{dt}(\int_sb \rho \vec{v}.\vec{n} dS)\) |
Answer» C. \((\frac{dB}{dt})_V = \frac{d}{dt}(\int_{MV}b \rho MV) + \int_sb \rho \vec{v}.\vec{n} dS\) | |