Fluids, play an important role in environmental systems, appearing as
surface water in rivers, lakes, and coastal regions or in the subsurface
as well as in the atmosphere. Mechanics of environmental fluids is
concerned with fluid motion, associated mass and heat transport in
addition to deformation processes in subsurface systems. In this
textbook the fundamental modelling approaches based on continuum
mechanics for fluids in the environment are described, including porous
media and turbulence. Numerical methods for solving the process
governing equations and its object-oriented computer implementation are
discussed and illustrated with examples. Finally the application of
computer models in civil and environmental engineering is demonstrated.