The following equation represents the momentum equation for a fluid fl – McqOptions

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1.	The following equation represents the momentum equation for a fluid flow that is approximated by a two-dimensional model. What does k stand for? ( frac{ partial v_x}{ partial t}- frac{ partial}{ partial x}(2k frac{ partial v_x}{ partial x})- frac{ partial}{ partial y}[k( frac{ partial v_x}{ partial y}+ frac{ partial v_y}{ partial x})]+ frac{ partial P}{ partial x} )-f_x=0
A.	Thermal conductivity
B.	Fluid viscosity
C.	Density
D.	Pressure
Answer» C. Density

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