Front

What is fluid kinematics?

Back

The study of how fluids flow and how to describe fluid motion.

Front

What does Lagrangian refer to in fluid kinematics?

Back

Tracking the position and velocity of each individual fluid particle.

Front

What is the Eulerian approach?

Back

A method where a finite volume called a flow domain or control volume is defined, through which fluid is in and out.

Front

What are field variables?

Back

Functions of space and time that define the flow field.

Front

What is flow visualization?

Back

The visual examination of flow field features, useful in physical experiments and CFD.

Front

What is a streamline?

Back

A curve that is everywhere tangent to the instantaneous local velocity vector.

Front

What is a streamtube?

Back

A bundle of streamlines.

Front

What are instantaneous quantities?

Back

Defined at a particular instant in time according to the velocity field at that instant.

Front

What happens when flow accelerates or converges?

Back

A streamtube decreases in diameter.

Front

What happens when flow decelerates or diverges?

Back

A streamtube increases in diameter.