The pressure correction is an __________

explicit time-independent method

implicit time-independent method

The correction in the velocity field is used to _____________

to get the velocity field of the next time step

to find the pressure field of the next time step

to get the velocity field of the next time step

to correct the velocity field in the previous iteration

State the condition obtained by applying the correction to the continuity equation.

When the velocity reaches an exact solution, the correction field becomes zero

When the mass flow rate reaches an exact solution, the correction field becomes zero

When the velocity reaches an exact solution, the correction field becomes zero

When the mass flow rate reaches an exact solution, the correction field becomes infinity

When the velocity reaches an exact solution, the correction field becomes infinity

Consider a one-dimensional flow with two bounding faces in the eastern (e) and the western sides (w). Applying pressure correction to the mass conservation equation, which of these equations will be obtained?(Note: \(\dot{m}\) represents the mass flow rate and the signs * and ‘ represent the initial guess and the correction terms respectively).

\(\dot{m}_{e}^{‘}=-\dot{m}_{e}^{*}\)

\(\dot{m}_{e}^{‘}+\dot{m}_{w}^{‘}=+\dot{m_e}*+\dot{m}_{w}^{*}\)

\(\dot{m}_{w}^{‘}=-\dot{m}_{e}^{*}\)

\(\dot{m}_{e}^{‘}+\dot{m}_{w}^{‘}=-\dot{m_e}*-\dot{m}_{w}^{*}\)

\(\dot{m}_{e}^{‘}=-\dot{m}_{e}^{*}\)

and the western sides (w). Applying pressure correction to the mass conservation equation, which of these equations will be obtained?(Note: \(\dot{m}\) represents the mass flow rate and the signs * and ‘ represent the initial guess and the correction terms respectively).a) \(\dot{m}_{e}^{‘}+\dot{m}_{w}^{‘}=+\dot{m_e}*+\dot{m}_{w}^{*}\) b) \(\dot{m}_{w}^{‘}=-\dot{m}_{e}^{*}\) c) \(\dot{m}_{e}^{‘}+\dot{m}_{w}^{‘}=-\dot{m_e}*-\dot{m}_{w}^{*}\) d) \(\dot{m}_{e}^{‘}=-\dot{m}_{e}^{*}\)

10 + Mcqs in Pressure Correction Equation in Computational Fluid Dynamics Page 1 McqOptions

1.	The pressure correction is an __________
A.	explicit time-independent method
B.	implicit time-independent method
C.	implicit time-dependent method
D.	explicit time-dependent method
Answer» D. explicit time-dependent method

Discussion

2.	The correction in the velocity field is used to _____________
A.	to find the pressure field of the next time step
B.	correct the pressure field
C.	to get the velocity field of the next time step
D.	to correct the velocity field in the previous iteration
Answer» C. to get the velocity field of the next time step

Discussion

3.	The pressure used to find the velocities from the momentum equations is of __________
A.	the previous time step
B.	the oldest value
C.	the latest value
D.	the current time step
Answer» B. the oldest value

Discussion

4.	In which of these terms of the momentum equation will the correction have no impact?
A.	Diffusion terms
B.	Source terms
C.	Velocity terms
D.	Surface flux terms
Answer» E.

Discussion

5.	The momentum equation drives the correction field of __________
A.	density
B.	temperature
C.	pressure
D.	energy
Answer» D. energy

Discussion

6.	The continuity equation drives the correction field of __________
A.	density
B.	velocity
C.	pressure
D.	energy
Answer» C. pressure

Discussion

7.	State the condition obtained by applying the correction to the continuity equation.
A.	When the mass flow rate reaches an exact solution, the correction field becomes zero
B.	When the velocity reaches an exact solution, the correction field becomes zero
C.	When the mass flow rate reaches an exact solution, the correction field becomes infinity
D.	When the velocity reaches an exact solution, the correction field becomes infinity
Answer» B. When the velocity reaches an exact solution, the correction field becomes zero

Discussion

8.	In the incompressible flows, the correction implies a correction in _________
A.	momentum
B.	velocity
C.	mass
D.	density
Answer» C. mass

Discussion

9.	Consider a one-dimensional flow with two bounding faces in the eastern (e) and the western sides (w). Applying pressure correction to the mass conservation equation, which of these equations will be obtained?(Note: \(\dot{m}\) represents the mass flow rate and the signs * and ‘ represent the initial guess and the correction terms respectively).
A.	\(\dot{m}_{e}^{‘}+\dot{m}_{w}^{‘}=+\dot{m_e}+\dot{m}_{w}^{}\)
B.	\(\dot{m}_{w}^{‘}=-\dot{m}_{e}^{*}\)
C.	\(\dot{m}_{e}^{‘}+\dot{m}_{w}^{‘}=-\dot{m_e}-\dot{m}_{w}^{}\)
D.	\(\dot{m}_{e}^{‘}=-\dot{m}_{e}^{*}\)
E.	and the western sides (w). Applying pressure correction to the mass conservation equation, which of these equations will be obtained?(Note: \(\dot{m}\) represents the mass flow rate and the signs * and ‘ represent the initial guess and the correction terms respectively).a) \(\dot{m}_{e}^{‘}+\dot{m}_{w}^{‘}=+\dot{m_e}+\dot{m}_{w}^{}\) b) \(\dot{m}_{w}^{‘}=-\dot{m}_{e}^{}\) c) \(\dot{m}_{e}^{‘}+\dot{m}_{w}^{‘}=-\dot{m_e}-\dot{m}_{w}^{}\) d) \(\dot{m}_{e}^{‘}=-\dot{m}_{e}^{}\)
Answer» D. \(\dot{m}_{e}^{‘}=-\dot{m}_{e}^{*}\)

Discussion

10.	The pressure correction equation is used to ensure _________
A.	energy conservation
B.	velocity conservation
C.	momentum conservation
D.	mass conservation
Answer» E.

Discussion

Explore topic-wise MCQs in Computational Fluid Dynamics.

The pressure correction is an __________

The correction in the velocity field is used to _____________

The pressure used to find the velocities from the momentum equations is of __________

In which of these terms of the momentum equation will the correction have no impact?

The momentum equation drives the correction field of __________

The continuity equation drives the correction field of __________

State the condition obtained by applying the correction to the continuity equation.

In the incompressible flows, the correction implies a correction in _________

The pressure correction equation is used to ensure _________