Aerodynamics

## Drag Force Equation in Aerodynamics

When mechanical engineers design automobiles, aircraft, rockets, and other vehicles, they generally need to know the drag force FD that will resist high-speed motion through the air or water. In this section, we will discuss the drag force and a related quantity that is known as the coefficient of drag, denoted by CD. That parameter [...]

Fluidics

## Blood Flow in the Body – An Application of Fluid Engineering

The flow of blood within the human body is an interesting application for these principles of fluids engineering. The circulatory system is regulated in part by muscles in the arterial walls that contract and expand to control how much blood will flow through different parts of the body. Blood pressure is determined by the output of the [...]

Fluidics

## Principles of Fluid Flows in Pipes- Pressure Drop & Flow Rate

A practical application for the concepts of pressure, viscosity, and the Reynolds number is the flow of fluids through pipes, hoses, and ducts. In addition to distributing water, gasoline, natural gas, air, and other fluids, pipe flow is also an important topic for biomedical studies of the human circulatory system (Figure). Blood flows [...]

Mechanical

## Mechanical Engineering Interview Questions part – 3

Hello !! Fellow Mecha students and Mechanical Engineers. This is the 3rd part of the Mechanical Engineering Interview Questions. Those who have missed the first two parts can go through these links . You will learn about different fluid mechanics related questions and answers in this article like dimensionless numbers and characteristics [...]

Fluidics

## What is Pressure and Buoyancy Force – Fluid mechanics

The forces known as buoyancy, drag, and lift arise when fluids interact with a solid structure or vehicle. Drag and lift forces arise when there is relative motion between a fluid and a solid object. A vehicle can either move through the fluid (as an aircraft moves through air,for instance) or the fluid can flow around the structure [...]

Fluidics

## Importance of Fluids in the Design of Micro and Macro systems

Fluid mechanics plays a critical role in the design of a wide range of mechanical systems across many orders of magnitude. Large laboratory equipment is now being replaced by microfluidic devices that combine pipes, valves, and pumps to deliver and process fluid samples on a single silicon chip. These devices, sometimes referred to as a [...]

Fluidics

## Dimensionless Numbers used in Fluid Mechanics

Mechanical engineers often work with dimensionless numbers. These are either pure numbers that have no units or groupings of variables in which the units exactly cancel one another—again leaving a pure number. A dimensionless number can be the ratio of two other numbers, and, in that instance, the dimensions of the numerator and [...]

Fluidics

## Laminar and Turbulent Fluid Flows & Reynolds Number

While traveling in an airplane we hear pilot instructing to fasten the seat belts because of the turbulence at the time of severe weather conditions or airflow over high mountains. There may be some other firsthand experience about the flow patterns. Fluid flow patterns are generally divided into laminar and turbulent fluid flows. Now, [...]

Aerodynamics

## Properties of Fluids & Their Applications

Although you already have some intuition as to the behavior and properties of fluids in everyday situations, we begin this article with a seemingly simple question: From an engineering standpoint, what exactly is a fluid? Scientists categorize compositions of matter in different ways. A chemist classifies materials according to their [...]

Fluidics

## Fluid Mechanics Fundamentals and Applications in Engineering

In this article , we introduce the subject of fluids engineering and its role in applications as diverse as aerodynamics, biomedical and biological engineering, piping systems, microfluidics, and sports engineering. Please have a look at : Properties of Fluid and their applications  The Fundamentals of Fluid Mechanics The study of [...]