aspects of fluid mechanics involving flow
continuum mechanics 

laws
conservations 


inequalities 



 deformation
 elasticity
 plasticity
 hooke's law
 stress
 finite strain
 infinitesimal strain
 compatibility
 bending
 contact mechanics
 material failure theory
 fracture mechanics

fluids 

 dynamics
 archimedes' principle · bernoulli's principle
 navier–stokes equations
 poiseuille equation · pascal's law
 viscosity
 (newtonian · nonnewtonian)
 buoyancy · mixing · pressure

liquids 

 surface tension
 capillary action

gases 

 atmosphere
 boyle's law
 charles's law
 gaylussac's law
 combined gas law

plasma 


 viscoelasticity
 rheometry
 rheometer

smart fluids 

 electrorheological
 magnetorheological
 ferrofluids


scientists
 bernoulli
 boyle
 cauchy
 charles
 euler
 gaylussac
 hooke
 pascal
 newton
 navier
 stokes


typical
aerodynamic teardrop shape, assuming a
viscous medium passing from left to right, the diagram shows the pressure distribution as the thickness of the black line and shows the velocity in the
boundary layer as the violet triangles. the green
vortex generators prompt the transition to
turbulent flow and prevent backflow also called
flow separation from the highpressure region in the back. the surface in front is as smooth as possible or even employs
sharklike skin, as any turbulence here increases the energy of the airflow. the truncation on the right, known as a
kammback, also prevents backflow from the highpressure region in the back across the
spoilers to the convergent part.
in physics and engineering, fluid dynamics is a subdiscipline of fluid mechanics that describes the flow of fluids—liquids and gases. it has several subdisciplines, including aerodynamics (the study of air and other gases in motion) and hydrodynamics (the study of liquids in motion). fluid dynamics has a wide range of applications, including calculating forces and moments on aircraft, determining the mass flow rate of petroleum through pipelines, predicting weather patterns, understanding nebulae in interstellar space and modelling fission weapon detonation.
fluid dynamics offers a systematic structure—which underlies these practical disciplines—that embraces empirical and semiempirical laws derived from flow measurement and used to solve practical problems. the solution to a fluid dynamics problem typically involves the calculation of various properties of the fluid, such as flow velocity, pressure, density, and temperature, as functions of space and time.
before the twentieth century, hydrodynamics was synonymous with fluid dynamics. this is still reflected in names of some fluid dynamics topics, like magnetohydrodynamics and hydrodynamic stability, both of which can also be applied to gases.^{[1]}