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This is the current test setup to obtain Cd of the fuel flow. For the first testannulus characterization, the tank will be filled up to ~87% of the nominal amount, as film cooling holes will not be drilled yet. For the film cooling hole characterization, and so no leakage will occur unless the O-rings failthe holes will be drilled, and the carrier will be bored out to expose the holes. For these tests, we will fill the water tank with 100% of the nominal amount. The aluminum carrier underneath the injector is to inlet fuel and prevent that fuel from leaking; in the second image, you can see the fuel port coming inletting fluid from the bottom of this carrier. The port on the right in the first image will link to a pressure transducer. We intend on performing multiple water flow tests across different injector dP's to properly characterize Cd.
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