Hello,

In one of the Abaqus example files for creating a hydraulic fracture, it has been mentioned that 0.02 m3 fluid is being injected over 140s which leads to a flow rate of (0.02/140) m3/s and to accomplish this, a tabular amplitude curve has been defined and then in *cflow it has been used and 5e-6 is injected from two phantom nodes in *cflow. I am really confused how this amplitude curve and 5e-6 add up to the flow rate 0.02 m3 over 140s and when I delete the amplitude curve doesn't matter how much I increase the 5e-6 in *cflow, no fracture initiates. The screenshots are attached below. Please help me to understand how to define a flow rate in my model. 

Thank you