Share Kanpur: It is common in hiking trails, in the winter months, to encounter frozen stagnant bodies of water (like ponds, lakes) while being required to cross flowing streams/rivers of liquid water. However, the impact of flow on the freezing nature of fluids is far from being understood. For the first time, using a combination of molecular simulations and an analytical approach, a team of scientists from IIT Kanpur headed by Prof. Jayant K. Singh and Prof. Indranil S. Dalal of the Department of Chemical Engineering have examined how velocity with which liquids flow has an impact at the pace which crystallization (better known as nucleation amongst the science fraternity) takes place.