Determine the ratio of hydraulic time to sedimentation time

Reference no: EM131139802

The deposition in, and dredging requirements of, a navigational channel in a wide river are to be studied using a movable-bed model. The bed material in the river is sand (sp. gr. = 2.65) with a median size of 0.4 mm. A model bed with sp. gr. = 1.25 is proposed. Determine the necessary median diameter for the model bed and the required length scales. Assume that both prototype and model are sufficiently wide so that Rr = Yr.Assume also that the model is constructed and operated using the results obtained below.

One sediment transport equation that is not included in Chapter 8 states that the dimensionless sediment transport qs,'u,ds, is a function of the dimensionless T, from the Shields diagram. As given here, qr is the volumetric sediment discharge per unit width. Use this equation to obtain the sediment transport ratio qsr. and from this result determine the time ratio for sediment modeling.

If the model study indicates that dredging of the model channel is required every 100 hours, calculate the frequency with which the prototype channel will require dredging.

Reference no: EM131139802

Questions Cloud

Calculate average return forecasts : The geometric average return for the large company stocks was 10.4 percent and the arithmetic average return was 12.3 percent. - Calculate average return forecasts for 1, 5, 10, and 25 years into the future.

Why is real gdp targeting the riskier of the two strategies : How does nominal GDP targeting differ from real GDP targeting? Why is real GDP targeting the riskier of the two strategies?

Compute the new wacc and briefly discuss in your report : Calculate the New WACC and briefly discuss in your report if this new WACC and capital structure might signal the market and investors.

Explain the possible ethical dilemmas : Explain how the social situation with Travon and Elliot could impact the work environment. Develop a policy that you would implement to minimize ethical concerns related to social activities between colleagues while supporting collegial relationshi..

Determine the ratio of hydraulic time to sedimentation time : If the model study indicates that dredging of the model channel is required every 100 hours, calculate the frequency with which the prototype channel will require dredging.

What type of stance has ibp adopted to social responsibility : IBP, a leading meat-processing firm, has a long record of breaking environmental protection, labor, and food processing laws and then trying to cover up its offenses. What type of stance has IBP adopted to social responsibility?

Determine the required model sediment sizes : Determine from the Shields diagram whether or not sediment transport will occur in both the model and the protoype.

What particular features of the internal control environment : Why is it important to consider the internal control environment of even a small company such as US Clothing Store?

Derive the equivalent of the fundamental growth : Derive the equivalent of the fundamental growth accounting equation in this case and explain how one might use available data to estimate TFP growth using this equation.

User Account

All Pages