What is hydrodynamic force?
Hydrodynamic forces are imposed on an object, such as a building, by water flowing against and around it. Among the forces are positive frontal pressure against the structure, drag effect along the sides, and negative pressure in the downstream side. Hydrodynamic forces are one of the main causes of flood damage.
What do you mean by turbulent flow?
turbulent flow, type of fluid (gas or liquid) flow in which the fluid undergoes irregular fluctuations, or mixing, in contrast to laminar flow, in which the fluid moves in smooth paths or layers. In turbulent flow the speed of the fluid at a point is continuously undergoing changes in both magnitude and direction.
What are the three types of flow?
The different types of fluid flow are:
- Steady and Unsteady Flow.
- Uniform and Non-Uniform Flow.
- Laminar and Turbulent Flow.
- Compressible and Incompressible Flow.
- Rotational and Irrotational Flow.
- One, Two and Three -dimensional Flow.
What is the difference between compressible flow and incompressible flow?
The main difference between compressible and incompressible fluid is that a force (or pression) applied to a compressible fluid changes the density of a fluid whereas a force applied to an incompressible fluid does not change the density to a considerable degree.
What is meant by compressible flow?
In fluid mechanics: Compressible flow in gases. Compressible flow refers to flow at velocities that are comparable to, or exceed, the speed of sound.
What’s the difference between prograde and retrograde motion?
Prograde or direct motion is motion in the same direction as the primary rotates. Rotation is determined by an inertial frame of reference, such as distant fixed stars. However, retrograde and prograde can also refer to an object other than the primary if so described.
What is the dictionary definition of the word prograde?
dictionary thesaurus. adjective. pro·grade | \\ˈprō-ˌgrād \\. : having or being a direction of rotation or revolution that is counterclockwise as viewed from the north pole of the sky or a planet.
What does it mean when a planet is in a prograde orbit?
In reference to a satellite, a prograde orbit means that the satellite orbits the planet in the same direction as the planet’s rotation. A planet is said to have a prograde orbit if the direction of its orbit is the same as that of the majority of other planets in the system.
Who is ProGrade Digital and what do they do?
ProGrade Digital focuses exclusively on the design and marketing of digital memory cards, card readers and workflow software required by imaging professionals.