Section 4: Soil and Water Conservation Engineering
Fluid Mechanics
Subtopic: Dimensional analysis – concepts of geometric dimensionless numbers
Question Statement:
In fluid mechanics analysis of SWCE hydraulic structures problem #40, the defining physical relationship for Dimensional analysis – concepts of geometric dimensionless numbers states that:
Options:
(A) The governing conservation law holds across streamlines in continuous fluid flow
(B) Fluids have infinite shear modulus
(C) Viscosity drops to zero in all pipes
(D) Pressure increases with elevation
Answer Key:
A
Step-by-Step Solution & Explanation
Fundamental physical principle governing Dimensional analysis – concepts of geometric dimensionless numbers based on Navier-Stokes and continuum mechanics.