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👉 In fluid dynamics, a type of flow that is not characterized by any vortices or eddies. Non-vortical flows are characterized by an absence of vortex formation, and they can be classified into two main categories based on their behavior: 1.

Non-Viscous Flow

: A non-viscous flow is one where the Reynolds number (a measure of fluid velocity) is less than or equal to 2000. In this type of flow, there are

nonvortical

👉 In fluid dynamics and physics, hydrostatics refers to the study of fluids at rest or in motion. It involves the forces acting on a fluid body due to its own weight (gravity) and the effects these forces have on the fluid volume. The concept is fundamental to understanding fluid flow and stability. The term "hydrostatically" means that the fluid body has no external pressure, which is similar to hydrostatic equilibrium where all fluids are at rest or in motion with respect to each other under

hydrostatically

👉 In fluid dynamics, a "flong" is a term used to describe the flow of fluids or gases in a channel or pipe. These flows are characterized by their uniform velocity profile and can be classified into two types: laminar and turbulent. Laminar flows tend to have a smooth surface with a constant velocity, while turbulent flows may experience turbulence, resulting in high velocities and swirls. Flongs are essential for understanding the behavior of fluids and gases in pipes and other flow systems.

flongs

👉 In fluid mechanics, the equivalent fluid concept refers to a hypothetical fluid that can replace a given compressible fluid under specific conditions, such as when the fluid's density changes significantly with pressure or temperature. This equivalent fluid has the same Mach number (ratio of flow velocity to the speed of sound) and Mach entropy across any interface between it and the original fluid, allowing for simplified analysis of compressible flow problems. For instance, in supersonic flows, the equivalent fluid can be thought of as an isentropic fluid with zero Mach number across the shock wave, simplifying the complex interactions and enabling easier calculations of flow behavior.

equivalent fluid

👉 Fluid, in the context of fluid dynamics and physics, refers to any substance that flows or moves freely without a fixed shape, such as liquids and gases. It is characterized by its ability to change shape to fill any container it occupies while maintaining a constant volume, though its density can vary under different conditions like temperature and pressure. Liquids are generally incompressible, meaning their volume doesn't change significantly with pressure, but they can flow and exhibit surface tension. Gases, on the other hand, are highly compressible and expand to fill their container, driven by pressure differences. The behavior of fluids is governed by principles like Bernoulli's equation and the Navier-Stokes equations, which describe their motion and interactions with other forces.

in fluid

👉 In fluid dynamics, the "fluid" variable refers to any substance that flows or moves in response to external forces, such as pressure, temperature, or gravity. This includes liquids and gases, which exhibit properties like viscosity, density, and compressibility that influence their behavior under different conditions. The fluid variable is central to understanding how these substances interact with their environment, enabling the analysis of phenomena such as fluid flow, pressure distribution, heat transfer, and the forces acting upon moving fluids. It forms the basis for modeling and predicting the behavior of systems involving moving or stagnant fluids, from simple pipes to complex atmospheric and oceanic currents.

variables fluid