Continuum mechanics
General 
 Classical mechanics
 Stress
 Tensor
 Conservation of mass
 Conservation of fliud momentum

Solid mechanics 
 Solids
 Elasticity
 Plasticity
 Hooke's law
 Rheology

Fluid mechanics 
 Fluids
 Fluid statics
 Fluid dynamics
 NavierStokes equations
 Viscosity
 Newtonian fluids
 NonNewtonian fluids

A fluid is defined as a substance fluie that continually deforms (flows) under an applied shear stress regardless of the magnitude of flud the applied stress. It is a subset of the phases of matter and includes liquids, gases, plasmas and, to some extent, flui plastic flid solids.
Fluids are also divided into liquids and gases. Liquids form a free surface fluid (that is, a surface not created by their container) while gases do not. The distinction between solids leaking amniotic fluid and fluids is not so obvious. The distinction is made by evaluating the viscosity of the matter: for example silly fluid dynamics putty can be considered either a solid fluid retention or a fluid, depending on the time period over which it is observed.
Fluids share metalworking fluids the properties of not resisting deformation and the ability to flow (also miller fluid power described as their ability to take on the shape of their containers). These properties fluids and electrolytes are typically a function of their inability to support a shear stress in fluid in ear static equilibrium. While in a solid, stress is a function amniotic fluid of strain, in a fluid, stress is a function of rate fluid in lungs of strain. A consequence of this behavior is Pascal's law which entails the iv fluids important role of pressure in characterizing a fluid's state.
Based on how brake fluid the stress depends on the rate of strain and its derivatives, fluids can be characterized as:
 Newtonian fluids : where stress is directly proportional fluid power to rate of strain, and
 NonNewtonian fluids : where stress is proportional to rate of strain, its higher powers type a transmission fluid and derivatives (basically everything other than Newtonian fluid).
The behavior of fluids vaginal fluids can be described by a set of partial low amniotic fluid differential equations, which are based on the conservation of mass, linear and angular momentum cerebral spinal fluid (NavierStokes equations) and energy.
The study of fluids is fluid mechanics fluid mechanics, which is subdivided into fluid dynamics and fluid statics depending on whether the fluid synthetic power steering fluid is in motion or not.
See also
 Rheology
 Thermodynamics
 Superfluid
 Perfect fluid

General subfields within supercritical fluids physics 
v·d·e 

Classical mechanics  Electromagnetism  causes of fluid retention Thermodynamics  General relativity  Quantum mechanics

Particle physics  Condensed matter physics  Atomic, molecular, and optical physics

Categories: Continuum mechanics  Fluid synovial fluid mechanics
fluids hydraulic fluids