During a storm, a snow drift is formed behind a snowfence as shown in Fig. P7.56. (See

Chapter 7, Problem 7.56

(choose chapter or problem)

During a storm, a snow drift is formed behind a snowfence as shown in Fig. P7.56. (See Video V9.9.) Assume that theheight of the drift, h, is a function of the number of inches of snowdeposited by the storm, d, height of the fence, H, width of slats inthe fence, b, wind speed, V, acceleration of gravity, g, air density,, and specific weight of snow, s . (a) If this problem is to be studiedwith a model, determine the similarity requirements for themodel and the relationship between the drift depth for model andprototype (prediction equation). (b) A storm with winds of 30 mphdeposits 16 in. of snow having a specific weight of 5.0 lb/ft3. A 12-sizedscale model is to be used to investigate the effectiveness of a proposedsnow fence. If the air density is the same for the model andthe storm, determine the required specific weight for the modelsnow and required wind speed for the model.