Computational Fluid Dynamics Navier Stokes Equation Online Exam Quiz
Computational Fluid Dynamics Navier Stokes Equation GK Quiz. Question and Answers related to Computational Fluid Dynamics Navier Stokes Equation. MCQ (Multiple Choice Questions with answers about Computational Fluid Dynamics Navier Stokes Equation
Which is the diffusion terms of the y-momentum equation?
Options
A : frac{partial au_{xy}}{partial x}+frac{partial au_{yy}}{partial y}+frac{partial au_{zy}}{partial z}
B : frac{partial au_{yx}}{partial x}+frac{partial au_{yy}}{partial y}+frac{partial au_{yz}}{partial z}
C : frac{partial au_{xx}}{partial x}+frac{partial au_{yx}}{partial x}+frac{partial au_{zx}}{partial x}
D : frac{partial au_{xy}}{partial y}+frac{partial au_{yy}}{partial y}+frac{partial au_{zy}}{partial y}
Diffusion terms are not included in ____ of the Navier-Stokes equations.
Options
A : continuity equation
B : y-momentum equation
C : z-momentum equation
D : energy equation
The Navier-Stokes equations are ____ system of equations.
Options
A : coupled
B : uncoupled
C : exponential
D : radical
The diffusion term in the general transport equation is div(?grad?). While equating this with the Navier-Stokes equations, what is ??
Options
A : k
B : ?
C : ?
D : vec{V}
The Navier-Stokes equations are all partial differential equations. What will be the best reason behind this?
Options
A : Ordinary differentials are not present in the Navier-Stokes equations
B : The dependent variables are functions of all of the independent variables
C : Each dependent variable depends on only one of the independent variables
D : Partial differentials are only present in the Navier-Stokes equations
Turbulence problems particularly depend on this term of the Navier-Stokes equations. Which is that term?
Options
A : Rate of change term
B : Convection term
C : Diffusion term
D : Source term
The viscosity terms in x-momentum equation is frac{partial au_{xx}}{partial x}+frac{partial au_{yx}}{partial y}+frac{partial au_{zx}}{partial z}. In a more general form, this becomes div(? gradu). Which of these relations is used for this transformation?
Options
A : Thermodynamic relations
B : Stress-strain relations
C : Fluid flow relations
D : Geometric relations
The major difference between the Navier-Stokes equations and the Euler equations is the dissipative transport phenomena. The impact of this phenomena in a system is ____
Options
A : They decrease entropy
B : They increase entropy
C : They increase internal energy
D : They decrease internal energy
What are the independent variables in the Navier-Stokes equations?
Options
A : x, y, z, ?
B : x, y, z, ?
C : x, y, z, t, ?
D : x, y, z, t
What are the dependent variables in the Navier-Stokes equations?
Options
A : ?,T,p,?
B : p,?,T
C : u,v,w,T,p,?
D : u,v,w,T,p
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