![]() ![]() As the water flows downstream, the steepening of the water surface becomes more pronounced, leading to the formation of an S2 water surface profile. This sudden change in slope can lead to a significant increase in the velocity of the flow, which in turn causes the water surface to steepen. However, the most common reason for the occurrence of S2 water surface profile is a break in slope from mild to steep.Ī break in slope from mild to steep refers to a sudden increase in the slope of the channel bed from a gentle or mild slope to a steep slope. This profile can occur due to various reasons such as changes in the channel geometry or changes in the flow regime. S2 water surface profile is a type of flow profile that is characterized by a steep slope of the water surface in the downstream direction. ![]()
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