Calculate open channel flow velocity and discharge: V = (1/n)·R^(2/3)·S^(1/2), Q = A·V. Manning n values: concrete = 0.013, earth = 0.022, grass = 0.030, natural rivers = 0.025–0.075.
2D stress state at a point. All stresses in MPa.
Enter the values for the patient or scenario you are assessing. Calculate open channel flow velocity and discharge: V = (1/n)·R^(2/3)·S^(1/2), Q = A·V. Manning n values: concrete = 0.013, earth = 0.022, grass = 0.030, natural rivers = 0.025–0.075. Use the manning equation result to inform your clinical assessment.