<P>The Grashof number (Gr) was named after Franz Grashof and expresses the ratio of buoyancy to viscous force in a fluid. It is one of the characteristical numbers in fluid dynamics and heat transfer problems. In most cases it influences the heat transfer coefficient. Examples Calculation of heat transfer coefficient by free convection Dieses Frameset leitet Sie weiter zur Simulations-Plattform.de: Berechnungen und Simulationen online <UL> <LI><A href="http://195.71.148.250:8080/">Simulations-Plattform.de</A> </UL>