Fluid Mechanics

Fluid properties, viscosity. Velocity field, substantial derivative, streamlines and pathlines. Pressure distribution in stationary and accelerated systems. Rotating container. Manometry. Bouyancy. Reynolds transport theorem. Dimensional analysis and non-dimensional groups. Continuity equation, momentum equation and angular momentum equation for control volumes. Energy equation and Bernoulli equation. Euler's equation for inviscid flow and Navier-Stokes equation for viscous flow. Boundary conditions for the basic equations of fluid mechanics. Stream function, vorticity and rotation, viscous stresses and strain rates. Reynolds number. Qualitative aspects of turbulence. Laminar and turbulent pipe flow. Boundary layer concepts. External flow. Elementary numerical calculation and visualisation.

After completing the course the student should have understanding of the theoretical foundations of ideal and real fluid flows. The student should be able to to formulate and solve practical flow problems in all knowledge categories in the following. Knowledge: After completion of this course, the student will have knowledge on: - Fluid properties, viscosity. - Velocity field, substantial derivative, streamlines and pathlines. - Pressure distribution in stationary and accelerated systems. Rotating container. Manometry. Buoyancy. - Reynolds transport theorem. - Basic dimensional analysis and important dimensionless groups. - Continuity equation, momentum equation and angular momentum equation for control volumes. - Energy equation and Bernoulli equation. - Euler equations for inviscid flow. - Navier-Stokes equations for viscous flow. - Boundary conditions for the basic equations of fluid mechanics. - Stream function, vorticity and rotation, viscous stresses and strain rates. - Reynolds number. Qualitative issues on turbulence. - Laminar and turbulent pipe flow. - Boundary layer concept. - Two-dimensional potential theory, velocity potential, some elementary flows, circulation. - Drag and lift - Examples from contemporary fluid mechanics research. Skills: After completion of this course, the student will have skills on: - Evaluation of models for flow analysis. - Use of control volume analysis. - Computation of forces and moments from fluid on solid bodies. - Derivation and use of formulae and tables for flows. - Solution of the basic laws of fluid mechanics for simple flow problems. - Elementary numerical calculation and visualisation using appropriate software introduced in the course. General competence: After completion of this course, the student will have general competence on: - The basic elements of the theoretical foundations for ideal and real fluid flows. - Formulation and solution of practical flow problems.

Lectures, example exercises, practice exercises, physical and/or numerical laboratory exercises and self-study.