Recent questions tagged fluid-mechanics

Consider steady fully-developed incompressible flow of a Newtonian fluid between two infinite parallel flat plates. The plates move in the opposite directions, as shown i...

\begin{tabular}{|c|c|}\hline Q. 32 & \begin{tabular}{l}A two-dimensional incompressible flow field is defined as, \\$\qquad \vec{V}(x, y)=(A x y) \hat{\imath}+\left(B y^{...

\begin{tabular}{l|l}Q. 33 & For a potential flow, the fluid velocity is given by $\vec{V}(x, y)=u \hat{\imath}+v \hat{\jmath}$. The slope \\of the potential line at $(x, ...

\begin{tabular}{|c|c|}\hline Q. 34 & \begin{tabular}{l}Consider steady incompressible flow of a Newtonian fluid over a horizontal flat \\plate, as shown in the figure. Th...

\begin{tabular}{l|l}Q. 35 & In a steady two-dimensional compressible flow, $u$ and $v$ are the $x$ - and $y$ - \\components of flow velocity, respectively and $\rho$ is t...

Q. 36 A water jet (density $=1000 \mathrm{~kg} / \mathrm{m}^{3}$ ) is approaching a vertical plate, having anorifice at the center, as shown in the figure. While a part o...

Q. 38 The velocity and acceleration of a fluid particle are given as $\vec{V}=(-\hat{\imath}+2 \hat{\jmath}) \mathrm{m} / \mathrm{s}$ and $\vec{a}=(-2 \hat{\imath}-4 \hat...

Q. 39 A hydraulic turbine with rotor diameter of $100 \mathrm{~mm}$ produces $200 \mathrm{~W}$ of power while rotating at $300 \mathrm{rpm}$. Another dynamically-similar ...

Q. 40 Water (density $=1000 \mathrm{~kg} / \mathrm{m}^{3}$ ) flows steadily with a flow rate of $0.05 \mathrm{~m}^{3} / \mathrm{s}$ through a venturimeter having throat d...

\begin{tabular}{|c|c|c|}\hline Q. 41 & \multicolumn{2}{|c|}{\begin{tabular}{l}Water flows around a thin flat plate ( $0.25 \mathrm{~m}$ long, $2 \mathrm{~m}$ wide) with a...

The figure shows the developing zone and the fully developed region in a pipe flow where the steady flow takes place from left to right. The wall shear stress in the sect...

The left hand column lists some non-dimensional numbers and the right hand column lists some physical phenomena. Indicate the correct combination1. Reynolds numberi. Wave...

Which of the following statement(s) regarding a venturimeter is/are correct?In the direction of flow, it consists of a converging section, a throat, and a diverging secti...

Which of the following statement(s) is/are true for streamlines in a steady incompressible flow?Two streamlines cannot intersect each other.Flow rate increases between tw...

A $10 \mathrm{~kg}$ mass placed on an infinitely long horizontal massless flat platform is to be supported by a steady vertical water jet as shown in the figure. The diam...

A boundary layer develops due to a two-dimensional steady flow over a horizontal flat plate. Consider a vertical line away from the leading edge which extends from the wa...

Consider an inviscid flow through a smooth pipe which has a pitot-static tube arrangement as shown. Find the centre-line velocity in the pipe.Consider that the density of...

A typical boundary layer over a flat plate has a linear velocity profile with zero velocity at the wall and freestream velocity, $U_{\infty}$, at the outer edge of the b...

Consider steady fully developed flow of a liquid through two large horizontal flat parallel plates separated by a distance of $2 \mathrm{~mm}$. One of the plate is fixed ...

Identify the configuration(s) in which steady two-dimensional internal flow may show boundary layer separation if the flow direction is left to right.