Does the velocity of fluids (specifically gasses) change when traveling down a cone from the wide opening to the narrow opening? If so, is there an equation used to calculate the acceleration or predict the outcome velocity?
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$\begingroup$ Something like Bernoulli's equation? $\endgroup$– Kyle KanosJul 31, 2015 at 1:53
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1 Answer
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Assuming that the pressure change across the cone is small (e.g., no significant density changes for the flowing gas), use the continuity equation. With constant density, this simplifies to $A_1 \cdot v_1 = A_2 \cdot v_2$, where $A$ is the cross sectional area of the flow stream and $v$ is the velocity of the flow stream. If you additionally need the acceleration, you have $v_1, \quad v_2$, and change in length. The kinematic equation $v_f^2 = v_i^2 + 2a\Delta x$ will allow you to calculate acceleration from your other variables.
answered Jul 31, 2015 at 1:52
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1$\begingroup$ User36790 - what editing tool are you using? Is that tool available online for Google chrome operating on Windows 7, or do I need to edit my work offline and import it onto this web page? $\endgroup$ Jul 31, 2015 at 2:16