11. This would create faraday waves at a free surface . 12. The free surface is located at, and the bottom of the fluid region is at. 13. Some ramps are constructed by spot-welding sheet metal to the frame, resulting in a fastener-free surface . 14. The loss of stability from flooding may be due in part to the free surface effect. 15. The resulting free surface effect destroyed her stability. 16. Typically the transverse pressure gradient and thus may be styled as a free surface after separation. 17. Stampers produced from the mothers after separating were chrome plated to provide a hard stain-free surface . 18. Storm sewers are closed conduits but usually maintain a free surface and therefore are considered open-channel flow. 19. The method has also been extended to simulate inviscid incompressible free surface flows ( Monaghan 94 ). 20. Hassan Masoud said, " When the drop evaporates, the free surface collapses and traps the suspended particles.