Why do we need to assume constant viscosity for a flowing fluid system when using the equations for momentum balances, since viscosity term is already outside the partial differential sign/ function.
in fluid flowing system we assume that viscosity is only dependent on temperature. In momentum balance of flowing fluid the change in viscosity along the axial direction of the pipe is too much small. there is small change in viscosity when fluid flows from one end to another. so the viscosity of fluid is considered to be constant throughout the flow. and not used as a partial difference function.
another factor is we mostly considered newtonion fluid in momentum balance which have constant viscosity.
Why do we need to assume constant viscosity for a flowing fluid system when using the...
4. The enthalpy H may be written as a function of temperature T and pressure P. If we have a system whose composition remains constant and using Maxwell's equations and the total differential, we can write dH as avdP where Cp is the heat capacity at constant pressure and the subscript of P on the partial derivative represents the partial of volume with respect to temperature holding pressure connstant. Find the change in enthalpy (A) for an ideal gas undergoing...
A semi-infinite body of liquid, with constant density and viscosity, is bounded below by a horizontal surface. Initially, the fluid and solid are at rest. Then at time t = 0, the solid surface is set in motion in the positive x direction with a constant velocity vo = 10 m/s, as shown in Figure 4-1. y y = 5 cm t< 0 y = 0 cm Fluid at rest у y = 5 cm t = 0 y =...
Q2.(1pt) When we solve linear system of equations with constant coefficients, the coefficient matrix A has one eigenvector K associated with an eigenvalue λ = 4 of multiplicity m-3. What are the three linear systems equations that should be solved to find the three vectors we need? What are the three fundamental solutions associated with this eigenvalue? Q2.(1pt) When we solve linear system of equations with constant coefficients, the coefficient matrix A has one eigenvector K associated with an eigenvalue...
Why do we need either a differential amplifier or differential probes to measures voltages across two floating point using an Oscilloscope?
Why do we need either a differential amplifier or differential probes to measures voltages across two floating point using an Oscilloscope?
Why do we need Subcontractor in Software and System Integration process? How does it help to ensure quality of integrated system? How do we Improve the quality and productivity during the software and system integration process?
When using a spectrometer to measure the absorbance as a function of concentration, why do we have to plot our calibration curve at the maximum wavelength (lambda max)? I know it's to get the highest point of absorbance and therefore ensure high sensitivity, but how does it affect my answers on the calibration curve? what if I didn't use lambda max?
Need help answering! 1. During auscultation and palpation of the cardiovascular system, why do we hear 2 heart sounds but only feel 1 pulse? 2. Why can't we listen to one's pulse with a stethoscope, like we can listen to heart sounds?
We learned a "best practice" when we started using the PWM and Timers: disabling the system before configuring it, then enabling it again once the configuration is complete. Why is this the "safest" way to do this initialization?
Why do we need to back up system before penetration testing: Question 13 options: Be able to restore system after the study Be able to attack the system Be able to obtain user account None of the above