fluidkinematikk
Fluidkinematikk is a term used to describe the study of the motion of fluids, which are substances that continually deform (flow) under an applied shear stress. This field is a branch of fluid mechanics and is concerned with the kinematic properties of fluid flow, such as velocity, acceleration, vorticity, and strain rate. The term "kinematikk" is derived from the Greek word "kinesis," meaning motion.
The primary goal of fluidkinematikk is to understand and describe the motion of fluids without considering
Key concepts in fluidkinematikk include:
Eulerian and Lagrangian descriptions: The Eulerian description follows a fixed point in space and tracks the
Vorticity: This is a measure of the local spinning motion of a fluid. It is defined as
Strain rate: This describes how much a fluid is being stretched or compressed. It is a measure
Fluidkinematikk has applications in various fields, including aerodynamics, hydrodynamics, and biomedical engineering, where understanding fluid motion