I am having some problems understanding how to apply a distributed load to a cylinder due to it being filled with water. Attached is an image of the cylinder (placed horizontally). The cylinder is symmetric about the y axis. Water is to be filled from the left through the 1" hole. The cylinder is part of a closed-looped system which means that the cylinder will fill all the voids except the ones on the ends of the cylinder. I modeled the water using the combine/subtract feature so that I could find what the volume of the geometry is. To keep the model simple, I left out the holes in the plates. I am using SolidWorks 2012 to do this. The cylinder is fixed at both ends. The loading is due to the weight of the water and the weight of the cylinder. I applied a stainless steel 304 material to the cylinder. The external loads are gravity and a remote load for the water. Procedure: Here is where I'm not sure I did things right. For a remote load I selected the inside surface of the cylinder (the inside wall) in the 4 regions. The load type is direct transfer. My y direction force component is 1496.85 N which is the weight of the water. Note: The dimensions of the cylinder is in English units. I made a spreadsheet to convert the units to SI so that I could figure out the volume and thus the mass which I used to calculate the force. I meshed the cylinder and ran the simulation. I would like to know if my procedure for the applying the water load is correct.