The induced transient viscous flow due to a suddenly stretched surface is studied. After a similarity transform, the unsteady Navier-Stokes equation is solved by several methods, including ...

If there are no shear stresses present, there is no fluid deformation, and the behavior of a fluid is described by the bulk modulus relating the pressure and the compression strain. In the presence of ...

When two fluids don't mix well, they sometimes form strange patterns called "viscous fingering," or Saffman-Taylor instability. Studying these patterns can help scientists understand how to design ...