1. Answer the following questions:(a) What is the physical meaning of the following:D a+V.vatDtwhere V is the velocity vector of the flow field.(b) Let the viscous stress tensor be denoted by 7. How is the surface (vector) force f, acting bythe fluid on a surface element ds (with unit normal în ) computed? Give your answer in vectornotation and also in index notation. What is the physical meaning of Ty ?(c) Write down the work done on a material volume of fluid by the viscous surface force invector notation and also in index notation.(d) Write down the amount of conduction heat flux 'q' (a scalar) on a surface element ds (withunit normal în ) in vector notation and also in index notation.

The Cartesian vector form of a velocity filed can be written as:…

Answered: 1. Answer the following questions: (a)…

1. Answer the following questions: (a) What is the physical meaning of the following: D a +V.v at Dt where V is the velocity vector of the flow field.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Fluid Kinematics

The branch of science that deals with objects which are either in motion or stationary are studied under the branch of classical mechanics. Fluid mechanics is a subcategory of classical mechanics that deals with the behavior of fluids at rest (fluid statics) or in motion (posing some velocity). In fluid kinematics, studies focus on the associated motion of fluid particles or groups of particles, and its associated parameters like displacements, velocity, and acceleration without concerning about the forces that caused the motion. All the laws of classical mechanics are applied in the study of fluid kinematics.

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