Measuring basic characteristics of flow through media Effect of deposition on culvert capacityĢ.Effects of culvert size on flow and channel erosion.Effect of culvert on flow and channel erosion.Effect of flow depth on levee stability.Effect of levee spacing on flow and levee stability.How side slopes affect the stability of levees.Effect of reservoir water level on dam stability.How seepage occurs and its effect on dam stability.How upstream and downstream slopes affect the stability of the dam.Effects of bed material, bed forms, and vegetation on flow.Hydraulic jump in horizontal rectangular channels.Calibration of broad and sharp-crested rectangular weirs.Investigation of Continuity and Bernoulli’s equations in rectangular open channel flow.Investigation of Chezy’s and Manning’s coefficients for uniform open channel flow.Vertical velocity distribution and depth average velocity in open channel flow.
#Emriver em4 geomodel manual
Our lab manual includes the following exercises: The Emriver Em3 comes standard with 240 pounds of our Alpha thermoset plastic modelling media as described above, and can be upgraded with color-coded media.1. The stream in the table responds rapidly and dynamically to these changes, making the single or dual-tilt base a unique research, learning, and teaching tool. The dual-tilt option allows the user to additionally change side-to-side roll through a + 3 degree range to further explore geologic change to the river basin. The box tilt may be easily and quickly changed as the model is running to dynamically model and demonstrate the effects of changing slope or geologic uplift. With the single-tilt base, a handwheel controls the box slope continuously from zero through 3.5 degrees through a robust gearbox and acme screw system.
#Emriver em4 geomodel upgrade
Decreasing the slope is as simple as raising the standpipe water level or inserting a support under the table’s downstream end.Īn exciting upgrade to the Em3 and Em4 models is a single- or dual-tilt base. The standard static supports are engineered from high-strength aluminum and create a box slope of 3 degrees. The supplied pump will drain the system in less than 15 minutes, and a drain valve is built into the upstream reservoir so the system may be quickly emptied into a floor drain or outside with a hose. The two reservoirs hold a total of 40 gallons of water, and may be filled with a hose or with 5-gallon media buckets carried from a spigot or utility sink. The extended length of the Em3 allows the stream to develop multiple meanders and other river features simultaneously, and has space for a large pool to build broad delta systems. The Em3 stream table is popular with high schools that have dedicated geology labs, colleges, nature centers and museums, and universities. Our Em3 stream table is designed to be set up and put away by two people, and can be transported in a full-size pickup or cargo van for outreach and education events and can also be powered onsite by a 12V marine battery.
#Emriver em4 geomodel plus
The increased size of the Em3 allows a whole class of 15 plus a teacher or facilitator to participate, with a second row of 15 observers, so it’s a perfect choice for hosting school groups and field trips. It is also a good option for museum and nature center exhibits or learning programs. The Em3 is great for a lab space or classroom where it will be used for a teaching unit or even a semester-long class.