Computational Fluid Dynamics Momentum Equation Online Exam Quiz
Computational Fluid Dynamics Momentum Equation GK Quiz. Question and Answers related to Computational Fluid Dynamics Momentum Equation. MCQ (Multiple Choice Questions with answers about Computational Fluid Dynamics Momentum Equation
I am using an infinitesimally small element of fluid moving along with the flow as my model. What is the acceleration of this model in x-direction?
Options
A : a_x=frac{Dvec{V}}{Dt}
B : a_x=frac{partial vec{V}}{partial t}
C : a_x=frac{Du}{Dt}
D : a_x=frac{partial u}{partial t}
Which of these terms represent convection in the momentum equation?
Options
A : div(uvec{V})
B : div( ho vec{V})
C : abla .(uvec{V})
D : div( ho uvec{V})
Which of these statements hold true?
Options
A : Momentum conservation is applicable to neither individual directions nor the whole system
B : Momentum conservation is applicable to the whole system but not individually
C : Momentum conservation is applicable to both individual directions and the whole system
D : Momentum conservation is applicable only to the three directions individually
What is the physical principle behind momentum equation?
Options
A : Newton’s second law of motion
B : Newton’s first law of motion
C : Zeroth law of thermodynamics
D : First law of thermodynamics
The source term in the momentum equation is ________
Options
A : Pressure force
B : Body forces
C : Viscous force
D : Acceleration
The momentum equation is hofrac{Du}{Dt}=-frac{partial p}{partial x}+frac{partial au_{xx}}{partial x}+frac{partial au_{yx}}{partial y}+frac{partial au_{zx}}{partial z}+ ho f_x. Which of these statements about sign convention can be inferred from this equation?
Options
A : Pressure force is taken as negative
B : Tensile force is taken as negative
C : Pressure force is taken as positive
D : Pressure force is unsigned
The physical property ? of the general transport equation is replaced by ________ to get momentum equation.
Options
A : Velocity vector
B : Mass
C : Force vector
D : Acceleration vector
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