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Fluid Mechanics : Objective Questions

1. Laminar developed flow at an average velocity of 5 m/s occurs in a pipe of 10 cm radius. The velocity at 5 cm radius is? A. 6.5 m/s B. 7 m/s C. 7.5 m/s D. 8m/s View Answer/Explanation Correct Answer is C Using the Formula U = 2Uavg. [1 – (r/R)² ] 2. Flow...

Notes on Dimensional Analysis

Dimensional Analysis? Search Your Query Here All engineering quantities can be defined in four basic or fundamental dimensions- Mass (M), Length (L), Time (T), and Temperature (θ). Dimensional analysis is the analysis of the relationships between different physical...

Vortex Motion

Search Your Query Here Vortex Motion A whirling  or rotating mass of fluid is called vortex flow. The flow of the fluid in a curved path. Free Vortex Flow In this flow fluid mass rotates due to the conservation of angular momentum. The velocity profile is inversely...

Working of Centrifugal Pump

﻿ Credit- Learn Engineering The type of turbo machines used for domestic and industrial purposes. Centrifugal pumps are radial flow devices The Centrifugal pumps are used to transport fluids by the conversion of kinetic (rotational) energy to the hydrodynamic energy...

Non-Newtonian Fluids

Search Your Query Here   Non- Newtonian Fluids These types of fluids do not obey Newton’s Law of viscosity. The relation between Shear Stress and Velocity gradient is given by the following formula- τ = A (du/dy)n + B Here A and B are constants which depend on the...

Surface Tension & Capillary Action

Search Your Query Here  Surface Tension/Pressure inside a drop, Bubble and Jet Surface Tension Surface tension occurs at the interface of the liquid and a gas or at the interface of two liquids. Surface tension (σ) is inversely proportional to temperature. It acts...