Recent content by trustthrust

Alpha is the angle typically in the range from 0 (zero) to 2 phi. X is a multiplication symbol

Hi, have worked out the formula for a hyperbolic spiral space curve to be r(t)=1/t X cos(alpha)+1/t X sine(alpha) + t and obtained the tangent vector T, normal vector N, and curvature (kappa) with the z axis being the central axis of the spiral. Am having trouble finding the formula for the...

Thanks OxDEADBEEF for the reply. Excellent point about the particles moving on a spiral track. My question came from working on a lawn sprinkler design and was confused on the stresses on the attached bends whether the force would increase with an increase in flow (not due to velocity but due to...

Hi, thanks in advance for any help and info. Have two conditions. The first condition is a mass of water spinning as a fixed mass. Say we have a rectangular mass .25 inches tall, 2 inches long and .50 thick spinning at 3000 RPM with its center of mass at R = 2.00 inches. (Please see first...