Fluid dynamics

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So, I've been asking around but still have now answer. I've looked on line for over two weeks, to no aviel, and I'm running out of time. Does anyone know how to measure laminar flow? If there is a dufferent way to measure laminar flow in a gas than in a fluid I need the way for a gas. Please help me. My teachers, emphasses on the plur, don't know any thing to help me. One teacher is a physicst teacher and the other is an earth science teacher, but they have no idea what to do with laminar flow.