Which of the variables in the equation \(\rho\frac{Du}{Dt}=-\frac{\partial p}{\partial x}+\frac{\partial \tau_{xx}}{\partial x}+\frac{\partial \tau_{yx}}{\partial y}+\frac{\partial \tau_{zx}}{\partial z}+\rho f_x\) will become zero for formulating Euler equation?(a) fx, τyx, τzx(b) τxx, τyx, u(c) τxx, τyx, τzx(d) τxx, p, τzxI have been asked this question in semester exam.I'd like to ask this question from Euler Equation in portion Governing Equations of Fluid Dynamics of Computational Fluid Dynamics

Which of the variables in the equation \(\rho\frac{Du}{Dt}=-\frac{\par

1.	Which of the variables in the equation \(\rho\frac{Du}{Dt}=-\frac{\partial p}{\partial x}+\frac{\partial \tau_{xx}}{\partial x}+\frac{\partial \tau_{yx}}{\partial y}+\frac{\partial \tau_{zx}}{\partial z}+\rho f_x\) will become zero for formulating Euler equation?(a) fx, τyx, τzx(b) τxx, τyx, u(c) τxx, τyx, τzx(d) τxx, p, τzxI have been asked this question in semester exam.I'd like to ask this question from Euler Equation in portion Governing Equations of Fluid Dynamics of Computational Fluid Dynamics
Answer» Correct option is (c) τxx, τyx, τzx To explain I would SAY: τxx, τyx, τzx represent shear stresses DUE to VISCOUS effects; u is the x-velocity; fx is the body force and P is the PRESSURE. τxx,τyx,τzx should become zero for the flow to be in-viscid and the equations to be Eulerian.

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