# Tag: fluid mechanics

## Mechanical Engineering Interview Questions Part – 9

This part 9 of the mechanical engineering inteview questions involve the questions and answers of fluid mechanics , power plant engineering, thermodynamics etc. For further information go through these links: Mechanical Engineering Interview Questions Part 01  Mechanical Engineering Interview Questions Part  02  Mechanical Engineering Interview Questions Part  03  Mechanical Engineering Interview Questions Part  04  Mechanical […]

May 28, 2016 |

## 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 quantifies the extent […]

December 7, 2015 |

## 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 heart and by the extent […]

November 9, 2015 |

## 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 through the arteries and veins in […]

November 8, 2015 |

## 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 denominator will cancel. One dimensionless number […]

October 28, 2015 |

## 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 atomic and chemical structures in the context of the periodic […]

October 27, 2015 |